2024-03-29T08:44:05Z
https://teee.eu/index.php/index/oai
oai:eeeic.org:article/61
2017-09-20T11:31:53Z
TEEE:ART
"161116 2016 eng "
2450-5730
dc
Adjusting output impedance using a PI controller to improve the stability of a single-phase inverter under weak grid
Jiao, Jiao
Electrical and Computer Engineering Department at Auburn University, AL
Nelms, R. Mark
Dept. of Electrical & Computer Engineering, Auburn University, AL 36849-5201
Array
Explored in this paper is the grid impedance effect on the stability of a single-phase grid connected inverter with an LC filter based on an analysis of the inverter output impedance. For a single-phase grid connected inverter, a PI controller is often used to regulate the current injected into the grid. However, the control performance can be influenced when the inverter is connected to a weak grid. Also, the utility grid has background harmonic noise, which can make the injected current distorted. Therefore, analysis of the output impedance of a single-phase grid connected inverter is important for the robustness and stability of the system. By modeling the output impedance of inverter, it can be determined that the proportional gain and integral gain of the controller have an effect on the output impedance. Analytical results show that by adjusting the PI controller parameters, the ability for harmonic reduction and stability of the system can be improved. Simulation and experiments using a 1 kW single-phase grid connected inverter verify the effectiveness of the theoretical analysis.
EEEIC International Publishing
2016-10-12 17:03:54
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/61
Transactions on Environment and Electrical Engineering; Vol 1, No 4 (2016): Regular Issue No. 4 2016
eng
https://teee.eu/index.php/TEEE/article/download/61/277
Electrical Engineering
Copyright (c) 2016 Jiao Jiao, R. Mark Nelms
oai:eeeic.org:article/47
2020-10-25T08:57:16Z
TEEE:ART
"161012 2016 eng "
2450-5730
dc
Modified Dual Second-order Generalized Integrator FLL for Frequency Estimation Under Various Grid Abnormalities
Patil, Kalpeshkumar Rohitbhai
Department of Electrical Engineering
Sarvajanik College of Engineering & Technology, Surat, Gujarat, India.
Patel, Hiren H.
Department of Electrical Engineering
Sarvajanik College of Engineering & Technology, Surat, Gujarat, India.
Array
Proper synchronization of Distributed Generator with grid and its performance in grid-connected mode relies on fast and precise estimation of phase and amplitude of the fundamental component of grid voltage. However, the accuracy with which the frequency is estimated is dependent on the type of grid voltage abnormalities and structure of the phase-locked loop or frequency locked loop control schemes. Among various control schemes, second-order generalized integrator based frequency- locked loop (SOGI-FLL) is reported to have the most promising performance. It tracks the frequency of grid voltage accurately even when grid voltage is characterized by sag, swell, harmonics, imbalance, frequency variations etc. However, estimated frequency contains low frequency oscillations in case when sensed grid-voltage has a dc offset. This paper presents a modified dual second-order generalized integrator frequency-locked loop (MDSOGI-FLL) for three-phase systems to cope with the non-ideal three-phase grid voltages having all type of abnormalities including the dc offset. The complexity in control scheme is almost the same as the standard dual SOGI-FLL, but the performance is enhanced. Simulation results show that the proposed MDSOGI-FLL is effective under all abnormal grid voltage conditions. The results are validated experimentally to justify the superior performance of MDSOGI-FLL under adverse conditions.
EEEIC International Publishing
2016-10-12 17:03:54
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/47
Transactions on Environment and Electrical Engineering; Vol 1, No 4 (2016): Regular Issue No. 4 2016
eng
https://teee.eu/index.php/TEEE/article/download/47/183
Copyright (c) 2016 Kalpeshkumar Rohitbhai Patil, Hiren H. Patel
oai:eeeic.org:article/55
2020-10-25T08:57:17Z
TEEE:ART
"161012 2016 eng "
2450-5730
dc
Power Management Strategy for Photovoltaic based Distributed Generators Operating in Parallel
Patel, Urvi Nikunj
C.K.Pithawalla College of Engineering & Technology, Surat, Gujarat, India.
Patel, Hiren H
Sarvjanik College of Engineering & Technology, Surat, Gujarat.
Array
In many countries, the grid-code or standards do not allow the Photovoltaic (PV) inverters to exchange reactive power with the grid. Recently, some countries have relaxed the standards. Hence, capacity of the inverters to control reactive power must be utilized. However, the reactive power that a PV inverter can supply is constrained by the maximum power that a PV array generates and changes with the environmental conditions. A reactive power sharing algorithm is proposed that not only ensures proper distribution of reactive power amongst the inverters, but also ensures that the maximum power generated by PV is supplied to the grid. In case of identical PV inverters, the algorithm operates all inverters at nearly equal apparent power leading to nearly equal percentage utilization of the inverters, thereby achieving uniform heating of the similar devices of the inverters. The algorithms are further investigated for power sharing amongst PV inverters of unequal ratings. It is highlighted that the proposed algorithm results into the least change in the utilization factor of a PV inverter, whose power changes due to the change in environmental conditions. The effectiveness of the algorithm over other algorithms in sharing power amongst inverters is displayed through MATLAB/Simulink simulations.
EEEIC International Publishing
2016-10-12 17:03:54
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/55
Transactions on Environment and Electrical Engineering; Vol 1, No 4 (2016): Regular Issue No. 4 2016
eng
Copyright (c) 2016 Urvi Nikunj Patel, Hiren H Patel
oai:eeeic.org:article/51
2020-10-25T08:57:15Z
TEEE:ART
"161016 2016 eng "
2450-5730
dc
Optimizing Signal Behavior of Femtocells for Improved Network
Joseph, Meera
School of Electrical
Engineering, University of Johannesburg, Johannesburg, South Africa
Leader of the ICT4D research group
Akindeji, Akinlabi Olaniyi
Department of Electrical and
Electronic Engineering Science, University of Johannesburg, Johannesburg,
South Africa
Array
The high demand for network coverage in an indoor setting brought about the acceptance of femtocell technology as a solution using the backhaul connectivity in the existing network. The quality of signal, voice calling, Internet, security and data are improved through the use femtocell at the indoor environment. Here the service provider attempts to reduce their operation cost by presenting self-organizing mechanisms for optimization of the network. The remarkable part is that, femtocells improves coverage, enhances the data rate at the indoor environment. Therefore, the challenges of the femtocell also known as interference deteriorates the capacity and quality performance of the whole cellular network. In this paper we simulate the bit error rate against signal behaviour at the indoor environment and we also simulate the transmitting power over signal for both macrocells and femtocells. We focus on the transmitting power that might cause interference within the cellular network.
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/51
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
Copyright (c) 2016 Meera Joseph, Akinlabi Olaniyi Akindeji
oai:eeeic.org:article/38
2020-10-25T08:57:13Z
TEEE:ART
"161017 2016 eng "
2450-5730
dc
Optimal Management of a Virtual Power Plant
Jigoria-Oprea, Dan
Power Systems Department at Politehnica University Timisoara, V. Parvan 2 Blvd., Timisoara, Timis, 300223
Vuc, Gheorghe
Power Systems Department at Politehnica University Timisoara, V. Parvan 2 Blvd., Timisoara, Timis, 300223
Litcanu, Marcela
Politehnica University Timisoara. She is now with QMB ENERG SRL, Eduard Benes 6, Timisoara, Timis
Array
Deregulation of energy market led to the development of flexible and efficient framework for energy trading by energy companies in a competitive environment. Both deregulation and the concern towards environment issues increased the number of small and medium renewable power plants distributed in the network. The variability of renewable energy sources and the lack of their central monitoring led to new challenges concerning power system operation. The idea of aggregation for distributed energy sources led to the concept of virtual power plant, which determines a better control of production units but also a better visibility for the system operator. In this paper, the authors propose an optimal management solution which can offer a virtual power plant the capability to sell complete services, both for production and demand side management, by decreasing the necessary reserve for balance.
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/38
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
Copyright (c) 2016 Dan Jigoria-Oprea, Gheorghe Vuc, Marcela Litcanu
oai:eeeic.org:article/59
2020-10-25T08:57:18Z
TEEE:ART
"161018 2016 eng "
2450-5730
dc
Towards a High Reliable Enforcement of Safety Regulations - A Workflow Meta Data Model and Probabilistic Failure Management Approach
Thimm, Heiko Henning
Prof. Dr.-Ing. Heiko Thimm
Pforzheim University
School of Engineering
Tiefenbronner Str. 65
D-75175 Pforzheim
Fon: +49 (0)7231/28-6451
Fax: +49 (0)7231/28-7451
Mail: heiko.thimm(at)hs-pforzheim.de
www.hs-pforzheim.de
Array
Today’s companies are able to automate the enforcement of Environmental, Health and Safety (EH&S) duties through the use of workflow management technology. This approach requires to specify activities that are combined to workflow models for EH&S enforcement duties. In order to meet given safety regulations these activities are to be completed correctly and within given deadlines. Otherwise, activity failures emerge which may lead to breaches against safety regulations. A novel domain-specific workflow meta data model is proposed. The model enables a system to detect and predict activity failures through the use of data about the company, failure statistics, and activity proxies. Since the detection and prediction methods are based on the evaluation of constraints specified on EH&S regulations, a system approach is proposed that builds on the integration of a Workflow Management System (WMS) with an EH&S Compliance Information System. Main principles of the failure detection and prediction are described. For EH&S managers the system shall provide insights into the current failure situation. This can help to prevent and mitigate critical situations such as safety enforcement measures that are behind their deadlines. As a result a more reliable enforcement of safety regulations can be achieved.
EEEIC International Publishing
2016-10-12 17:03:54
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/59
Transactions on Environment and Electrical Engineering; Vol 1, No 4 (2016): Regular Issue No. 4 2016
eng
https://teee.eu/index.php/TEEE/article/download/59/168
Environmental Health and Safety
Copyright (c) 2016 Heiko Henning Thimm
oai:eeeic.org:article/52
2020-10-25T08:57:17Z
TEEE:ART
"161019 2016 eng "
2450-5730
dc
Multi-source energy networks for cargo Vessels
Ahmed, Sanjana
University of Nottingham
Castellazzi, Alberto
Associate Professor of Power Electronics, Faculty of Engineering, University of Nottingham
Williams, Arthur
Director of Post-graduate taught courses in EEE, Faculty of Engineering, University of Nottingham http://www.picohydro.org.uk/
Array
The paper discusses the feasibility of installing renewable energy generation technologies on sea-going transport, taking into account the additional weight and power consumption. This study in based on the power management of a 26,198 tonne commercial chemical tanker. The management system would aim at reducing the number of generators as well as the power required from burning fossil fuels. After a process of elimination of potential technologies based on feasibility of the project and shipboard application, the work is focused towards photovoltaic and wind energy generation in combination with fossil fueled engines and Li-ion battery storage covering the higher energy density needs, and the intermittent nature of renewables. The network architecture is optimized in order to have the highest efficiency, and reduced system weight. The results show that successful management of the system can lead to reduction in generator requirement, and energy despite the weight of extra installations of photovoltaic and wind energy generation systems. By reducing the number of generators and allowing each remaining one to operate near their maximum power, the specific fuel consumption is improved, the efficiency is increased, resulting in significant fuel and cost saving, along with the mass of fuel to be carried on-board.
EEEIC International Publishing
2016-10-12 17:03:54
Peer-reviewed Article
image/png
application/pdf
https://teee.eu/index.php/TEEE/article/view/52
Transactions on Environment and Electrical Engineering; Vol 1, No 4 (2016): Regular Issue No. 4 2016
eng
https://teee.eu/index.php/TEEE/article/download/52/0
https://teee.eu/index.php/TEEE/article/download/52/142
Copyright (c) 2016 Sanjana Ahmed, Alberto Castellazzi, Arthur Williams
oai:eeeic.org:article/60
2020-10-25T08:57:19Z
TEEE:ART
"161104 2016 eng "
2450-5730
dc
A multiperiodal management method at user level for storage systems using artificial neural network forecasts
Belli, Grazia
University of Calabria http://unical.it
Brusco, Giovanni
University of Calabria http://unical.it
Burgio, Alessandro
University of Calabria http://unical.it
Menniti, Daniele
University of Calabria http://unical.it
Pinnarelli, Anna
University of Calabria http://unical.it
Sorrentino, Nicola
University of Calabria http://unical.it
Vizza, Pasquale
University of Calabria http://unical.it
Array
The increase of renewable non-programmable production and the necessity to locally self-consume the produced energy led to utilize ever more storage systems. To correctly utilize storage systems, an opportune management method has to be utilized. This paper implements a multi-period management method for storage systems, using different management strategies. The method aims to minimize the total absorbed and supplied energy or the peak power exchanged with the grid. The results show the effectiveness of the method in diminishing the energy exchanged with the grid and also the possibility to optimize the performance of the storage systems
EEEIC International Publishing
2016-10-12 17:03:54
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/60
Transactions on Environment and Electrical Engineering; Vol 1, No 4 (2016): Regular Issue No. 4 2016
eng
Electrical Engineering; Renewable energy sources and storages
Copyright (c) 2016 Grazia Belli, Giovanni Brusco, Alessandro Burgio, Daniele Menniti, Anna Pinnarelli, Nicola Sorrentino, Pasquale Vizza
oai:eeeic.org:article/72
2020-10-25T08:57:19Z
TEEE:ART
"161111 2016 eng "
2450-5730
dc
A Novel Identification Method of Thermal Resistances of Thermoelectric Modules Combining Electrical Characterization Under Constant Temperature and Heat Flow Conditions
Siouane, Saima
University of Lorraine - Institute Jean
Lamour, Nancy
Jovanovic, Slavisa
Faculty of Sciences and Technologies and
the Jean Lamour Institute (UMR 7198), University
of Lorraine, Nancy
Poure, Philippe
Universite de Lorraine
Array
The efficiency of a Thermoelectric Module (TEM) is not only influenced by the material properties, but also by the heat losses due to the internal and contact thermal resistances. In the literature, the material properties are mostly discussed, mainly to increase the well-known thermoelectric figure of merit ZT. Nevertheless, when a TEM is considered, the separate characterization of the materials of the p and n elements is not enough to have a suitable TEM electrical model and evaluate more precisely its efficiency. Only a few recent papers deal with thermal resistances and their influence on the TEM efficiency; mostly, the minimization of these resistances is recommended, without giving a way to determine their values. The aim of the present paper is to identify the internal and contact thermal resistances of a TEM by electrical characterization. Depending on the applications, the TEM can be used either under constant temperature gradient or constant heat flow conditions. The proposed identification approach is based on the theoretical electrical modeling of the TEM, in both conditions. It is simple to implement, because it is based only on open circuit test conditions. A single electrical measurement under both conditions (constant-temperature and constant-heat) is needed. Based on the theoretical electrical models, one can identify the internal and thermal resistances.
EEEIC International Publishing
2016-10-12 17:03:54
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/72
Transactions on Environment and Electrical Engineering; Vol 1, No 4 (2016): Regular Issue No. 4 2016
eng
Electrical Engineering
Copyright (c) 2016 Saima Siouane, Slavisa Jovanovic, Philippe Poure
oai:eeeic.org:article/50
2020-10-25T08:57:14Z
TEEE:ART
"161012 2016 eng "
2450-5730
dc
An Implementation of Exploratory Start for Power Quality Disturbance Pattern Recognition
Yalcin, Turgay
Ondokuz Mayis University
Ozdemir, Muammer
Ondokuz Mayis University
Array
Identification of system disturbances and detection of them guarantees smart grids power quality system reliability and long lasting life of the power system. The key goal of this study is to generate non - time consuming features for CPU, for recognizing different types of non-stationary and non-linear smart grid faults based on signal processing techniques. This paper proposes a new solution for real time power system monitoring against power quality faults focusing on voltage sag and noise. EEMD is used for noise reduction with first intrinsic mode function (imf1). Hilbert Huang Transform (HHT) is used for generating instantaneous amplitude (IA) and instantaneous frequency (IF) feature of real time voltage sag power signal. The proposed power system monitoring system is able to detect power system voltage sag disturbances and capable of recognize and remove EMI (Electromagnetic Interference)-Noise. In this study based on experimental studies, Hilbert Huang based pattern recognition technique was used to investigate power signal to diagnose voltage sag in power grid. SVM and Decision Tree (C4.5) were operated and their achievements were matched for calculation error and CPU time. According to the analysis, decision tree algorithm without dimensionality reduction produces the best solution.
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/50
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
Copyright (c) 2016 Turgay Yalcin, Muammer Ozdemir
oai:eeeic.org:article/71
2019-12-27T19:23:31Z
TEEE:ART
"161122 2016 eng "
2450-5730
dc
Unidirectional Protection Strategy for Multi-terminal HVDC Grids
Mokhberdoran, Ataollah
EFACEC Energia, S.A,
Un. Switchgear and Automation, Rua Frederico Ulrich, PO Box 3078 4471-907, Maia
Silva, Nuno
EFACEC Energia, S.A,
Un. Switchgear and Automation
Leite, Helder
Department of Electrical and Computer Engineering of University of Porto
Carvalho, Adriano
Department of Electrical and Computer Engineering of University of Porto http://orcid.org/0000-0003-3729-5263
Array
Protection issue is identified as the main drawback of emerging multi-terminal HVDC grids. Multi-terminal HVDC grid demands fast short circuit fault current interruption. Fast DC circuit breakers as a promising solution can be implemented as either bidirectional or unidirectional devices. In addition to less implementation cost, the unidirectional DC circuit breakers have less power losses as compared to the bidirectional devices. A protection strategy for multi-terminal HVDC grid based on unidirectional breaking devices is discussed and assessed in this paper. The performance of unidirectional protection strategy is examined under different fault scenarios in a fourterminal MMC-HVDC grid model. Furthermore, the impacts of unidirectional protection strategy on power converters and also current interruption and surge arrester ratings of the DC circuit breakers are discussed.
EEEIC International Publishing
2016-10-12 17:03:54
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/71
Transactions on Environment and Electrical Engineering; Vol 1, No 4 (2016): Regular Issue No. 4 2016
eng
Electrical Engineering
Copyright (c) 2016 Ataollah Mokhberdoran, Nuno Silva, Helder Leite, Adriano Carvalho
oai:eeeic.org:article/75
2017-09-20T11:31:53Z
TEEE:ART
"161127 2016 eng "
2450-5730
dc
Reconditioning in synchronous operation with one parallel induction generator
Magalhães, Alana da Silva
Moraes, Pedro Henrique Franco
Silva, Alan Henrique Ferreira
Gomes, Pedro Henrique Garcia
Alves, Aylton José
Calixto, Wesley Pacheco
Array
The purpose of this paper is to compare mathematical modeling and practical bench in order to validate the electrical interactions between an induction generator and a synchronous generator. Two generators was connected to a common bus in steady state, subject to non-linear load. The results comparing modeling and bench tests show that the induction generator besides the active power increasing, has a better way for harmonic currents flowing in common bus. It was concluded that the induction generator repowering and attenuates current harmonic components present at the connection point, improving the network voltage profile.
EEEIC International Publishing
2016-10-12 17:03:54
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/75
Transactions on Environment and Electrical Engineering; Vol 1, No 4 (2016): Regular Issue No. 4 2016
eng
Brasil; Electrical Engineering;
Copyright (c) 2016 Alana da Silva Magalhães, Pedro Henrique Franco Moraes, Alan Henrique Ferreira Silva, Pedro Henrique Garcia Gomes, Aylton José Alves, Wesley Pacheco Calixto
oai:eeeic.org:article/77
2017-09-12T15:49:15Z
TEEE:ART
"161219 2016 eng "
2450-5730
dc
Redefinition of the Scarcity Price: lessons and recommendations from the Colombian electricity market
Llanos-Perez, Emanuel J.
University College of London
Hinestroza-Olascuaga, Laura M.
Instituto Superior Técnico, Technical University of Lisbon http://orcid.org/0000-0002-7944-6456
Array
The Colombian government introduced a capacity market in order to promote the diversification in the energy matrix and protect users from high prices derived from dry seasonal events. Unfortunately, the flaws in the scarcity price definition- a mechanism that activates the capacity market obligation and sets a cap price for the spot market- have led into a market failure. Specifically, some generation plants have been forced to be unavailable because their variable costs are significantly higher than the scarcity price. This paper presents a qualitative and quantitative analysis of the Colombian Electricity system, with a particular emphasis on the definition of the scarcity price. Results present lessons and recommendations for policy makers based on the experience of the Colombian Electricity Market, highlighting the need of a new definition of the scarcity price and a different focus on the energy planning scheme.
EEEIC International Publishing
2016-12-19 20:33:59
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/77
Transactions on Environment and Electrical Engineering; Vol 2, No 1 (2017): Vol 2, No 1 (2017): Regular Issue
eng
Copyright (c) 2016 Emanuel J. Llanos-Perez, Laura M. Hinestroza-Olascuaga
oai:eeeic.org:article/68
2017-09-12T15:49:15Z
TEEE:ART
"170101 2017 eng "
2450-5730
dc
Analysis of loss distribution of Conventional Boost, Z-source and Y-source Converters for wide power and voltage range
Gadalla, Brwene Salah
Aalborg university
Schaltz, Erik
Department of Energy Technology, Aalborg University
Siwakoti, Yam
Department of Electrical, Mechanical and Mechatronic Systems, University of Technology Sydney
Blaabjerg, Frede
Department of Energy Technology, Aalborg University
Array
Boost converters are needed in many applications which require the output voltage to be higher than the input voltage. Recently, boost type converters have been applied for industrial applications, and hence it has become an interesting topic of research. Many researchers proposed different impedance source converters with their unique advantages as having a high voltage gain in a small range of duty cycle ratio. However, the thermal behaviour of the semiconductor devices and passive elements in the impedance source converter is an important issue from a reliability point of view and it has not been investigated yet. Therefore, this paper presents a comparison between the conventional boost, the Z-source, and the Y-source converters based on a thermal evaluation of the semiconductors. In addition, the three topologies are also compared with respect to their efficiency. In this study the results show that the boost converter has higher efficiency than the Zsource and Y-source converter for these specific voltage gain of 2 and 4. The operational principle, mathematical derivations, simulation results and final comparisons are presented in this paper.
EEEIC International Publishing
2016-12-19 20:33:59
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/68
Transactions on Environment and Electrical Engineering; Vol 2, No 1 (2017): Vol 2, No 1 (2017): Regular Issue
eng
Copyright (c) 2017 Brwene Salah Gadalla, Erik Schaltz, Yam Siwakoti, Frede Blaabjerg
oai:eeeic.org:article/83
2017-09-12T15:49:15Z
TEEE:ART
"170103 2017 eng "
2450-5730
dc
Maximizing Power Output of a Partially Shaded Total-Cross-Tied Photovoltaic array
Shah, Neha Saurabh
Sardar Vallabhbhai Patel Institute of Technology, SVIT, Vasad
Patel, Hiren H
Sarvajanik College of Engineering & Technology, Surat
Array
Non-uniform conditions on the modules of the PV array, especially, partial shading reduces the output of the PV array to a large extent. The shaded module in a string limits the current of the entire string and hence, the output power of the string. The output power under such conditions is reported to be higher for total-cross-tied (TCT) configuration. This paper describes two different approaches, one based on current compensation (current equalization) and another based on voltage equalization, to extract higher power from the partially shaded total-cross-tied photovoltaic array. The TCT configuration is considered to minimize the number of converters, sensors, cost and complexity involved. The additional converters in the two distinct approaches evaluated here operate only when the partial shading occurs and are controlled to minimize the current and voltage miss-matches. The analysis and the control algorithm are presented. Simulation results obtained in MATLAB/Simulink are included to demonstrate the effectiveness of both methods and the relative merits and demerits of these approaches are highlighted.
EEEIC International Publishing
2016-12-19 20:33:59
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/83
Transactions on Environment and Electrical Engineering; Vol 2, No 1 (2017): Vol 2, No 1 (2017): Regular Issue
eng
Electrical Engineering; Renewables
Copyright (c) 2017 Neha Saurabh Shah, Hiren H Patel
oai:eeeic.org:article/76
2017-09-12T15:49:15Z
TEEE:ART
"170108 2017 eng "
2450-5730
dc
Study by modeling and simulation of open-switch fault diagnosis for five-level converters
Becker, Florent
Institut Jean Lamour (UMR7198) University of Lorraine, Vandoeuvre les Nancy
Jamshidpour, Ehsan
Université of Strasbourg , Illkirch, and ECAM Strasbourg-Europe, Schiltigheim
Poure, Philippe
Institut Jean Lamour (UMR7198) University of Lorraine, Vandoeuvre les Nancy
Saadate, Shahrokh
GREEN laboratory University of Lorraine, Vandoeuvre les Nancy
Array
In this paper, an open-switch fault diagnosis method for five-level H-Bridge Neutral Point Piloted (HB-NPP) or T-type converters is proposed. While fault tolerant operation is based on three steps (fault detection, fault localization and system reconfiguration), a fast fault diagnosis, including both fault detection and localization, is mandatory to make a suitable response to an open-circuit fault in one of the switches of the converter. Furthermore, fault diagnosis is necessary in embedded and safety critical applications, to prevent further damage and perform continuity of service.
In this paper, we present an open-switch fault diagnosis method, based on the switches control orders and the observation of the converter output voltage level. In five-level converters such as HB-NPP and T-type topologies, some switches are mostly 'on' at the same time. Therefore, the fault localization is quite complicated. The fault diagnosis method we proposed is capable to detect and localize an open-switch fault in all cases. Computer simulations are carried out by using Matlab Simulink and SimPowerSystem toolbox to validate the proposed approach.
EEEIC International Publishing
2016-12-19 20:33:59
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/76
Transactions on Environment and Electrical Engineering; Vol 2, No 1 (2017): Vol 2, No 1 (2017): Regular Issue
eng
Electrical Engineering
Copyright (c) 2017 Florent Becker, Ehsan Jamshidpour, Philippe Poure, Shahrokh Saadate
oai:eeeic.org:article/57
2017-09-12T15:49:15Z
TEEE:ART
"170108 2017 eng "
2450-5730
dc
Investigation on the Applicability of the Time Domain Analysis of Discharges in Gases for the Defect Identification at AC Voltage
Lühring, Ulrich
Institute of High Voltage Engineering, TU Dortmund University, Dortmund
Wienold, Daniel
Institute of High Voltage Engineering, TU Dortmund University, Dortmund
Jenau, Frank
Institute of High Voltage Engineering, TU Dortmund University, Dortmund
Array
The partial discharge diagnosis is an established instrument for the condition assessment of high voltage insulations and equipment. Under AC voltage stress the phase resolved pattern is of great significance in order to become aware of the type of fault. As a result of the inapplicability for DC voltage stress, approaches for alternative interpretation techniques such as the time domain analysis of partial discharges were identified in recent investigations. In these different types of fault are taken into account as well as different insulating media. The purpose of this paper is to investigate whether an analysis of the pulse shape is also applicable for the defect identification under AC voltage stress. By focussing on gaseous insulating media, contact noise and surface discharges are emulated in ambient air, whereas corona discharges are emulated in ambient air and oxygen. A method for analysing discharges, occurring in the negative and the positive half-wave of the test voltage, is proposed and discussed.
EEEIC International Publishing
2016-12-19 20:33:59
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/57
Transactions on Environment and Electrical Engineering; Vol 2, No 1 (2017): Vol 2, No 1 (2017): Regular Issue
eng
electrical engineering; electrical measurements
Copyright (c) 2017 Ulrich Lühring, Daniel Wienold, Frank Jenau
oai:eeeic.org:article/28
2021-06-27T16:02:13Z
TEEE:ART
"160817 2016 eng "
2450-5730
dc
Modification of Duval Triangle for Diagnostic Transformer Fault through a Procedure of Dissolved Gases Analysis
Dessouky, Sobhy Serry
Electrical Engineering Dept. Faculty of Engineering. Port-Said University
Kalas, Ahmed E.
Electrical Engineering Dept. Faculty of Engineering, Port-Said University. Port Said, Egypt
Ahmed, Ramadan Aly
Electrical Engineering Dept. Faculty of Engineering. Port-Said University
Hassan, Abdel Moneim M.
Abo-Sultan Steam Power Plant, Ismailia. Egypt
Array
Dissolved gas-in-oil analysis (DGA) is a sensitive and reliable technique for the detection of incipient fault condition within oil-immersed transformers. When the mineral oil is subjected to high thermal or/and electrical stresses, it decomposes and, as a result, gases are generated.
This paper presents modification of Duval triangle DGA diagnostic graph to numerical method that is easy to use for diagnosing and the possibility to use for a Matlab program.
The evaluation is carried out on DGA data obtained from three different groups of transformers. A Matlab program was developed to automate the evaluation of Duval Triangle graph to numerical modification, Also the fault gases can be generated due to oil decomposing effected by transformer over excitation which increasing thetransformer exciting current lead to rising the temperature inside transformer core beside the other causes.
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
application/pdf
https://teee.eu/index.php/TEEE/article/view/28
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
https://teee.eu/index.php/TEEE/article/download/28/100
Copyright (c) 2016 Sobhy Serry Dessouky, Ahmed E. Kalas, Ramadan Aly Ahmed, Abdel Moneim M. Hassan
oai:eeeic.org:article/9
2021-06-27T16:02:12Z
TEEE:ART
"151212 2015 eng "
2450-5730
dc
Novel Power Quality Data Analysis and Reporting Framework for Wide-area system of registration and processing of power quality data
Rezmer, Jacek
Wroclaw University of Technology
Leonowicz, Zbigniew
Wroclaw University of Technology
Array
This paper presents a novel method for data analysis and visualization, including real-time visual monitoring and proposal for combined area PQ indices on the example of the developed and operational comprehensive system of registration, archiving and data processing for the wide-area monitoring of power quality in a separated part of real power grid with distributed renewable generation. Real case studies related to power quality disturbances are presented.
EEEIC International Publishing
2015-12-18 00:00:00
Peer-reviewed Article
application/pdf
video/x-msvideo
https://teee.eu/index.php/TEEE/article/view/9
Transactions on Environment and Electrical Engineering; Vol 1, No 1 (2015): Power Quality
eng
https://teee.eu/index.php/TEEE/article/download/9/28
Copyright (c) 2015 Jacek Rezmer, Zbigniew Leonowicz
oai:eeeic.org:article/12
2021-06-27T16:02:12Z
TEEE:ART
"160508 2016 eng "
2450-5730
dc
Modeling, Analysis and Control of Different DC-DC Converter Topologies for Photo Voltaic Emulator
Iqbal, Mohammad Tauquir
Tariq, Mohd
Buck Converter; LLC Resonant Converter; Quasi Resonant Buck Converter; Photo Voltaic Emulator; Simulink
This paper presents the modeling, analysis and control of different DC-DC converter topologies to emulate the photovoltaic (PV) system. A PV emulator is basically a DC-DC converter having same electrical characteristics that of solar PV panel. The emulator helps to achieve real characteristics of PV system in a better way in an environment where using actual PV systems can produce inconsistent results due to variation in weather conditions. The paper describes different types of DC-DC converters like buck, Resonant and Quasi Resonant Converter. The complete system is modelled in MATLAB® Simulink SimPowerSystem software package. The Simulation results obtained from the MATLAB® Simulink SimPowerSystem software package for different topologies under steady and dynamic conditions are analyzed and presented. An evaluation table is also presented at the end of the paper, presenting the effectiveness of each topology.
EEEIC International Publishing
2016-05-08 14:12:11
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/12
Transactions on Environment and Electrical Engineering; Vol 1, No 2 (2016): Regular Issue Vol 1, No 2 (2016)
eng
Copyright (c) 2016 Mohammad Tauquir Iqbal, Mohd Tariq
oai:eeeic.org:article/13
2021-06-27T16:02:13Z
TEEE:ART
"160713 2016 eng "
2450-5730
dc
Electric Energy Access in Bangladesh
Taheruzzaman, Muhammad
Janik, Przemyslaw
Wroclaw University of Science and Technology
Energy Profile, Energy efficiency, Electric Power sector, electricity reformation, renewable energy access, solar home system
This paper represents the overall electrical energy profile and access in Bangladesh. In the recent past Bangladesh has been experiencing shortage of electricity, and about 42 % of population no access to the electricity. The electricity consumption has rapidly increased over last decade. The demand and consumption will intensify in the remote future as overall development and future growth. To set “vision 2021” of Bangladesh; government of Bangladesh has devoted to ensuring access of affordable and reliable electricity for all by 2021. In the modern time, energy is the vital ingredient for socioeconomic growth in the developing country i.e., alleviating poverty. Along with electricity access in Bangladesh strived to become middle income country by 2021. Bangladesh has experienced that energy consumption inclines to increase rapidly when per capita income researches between US$ 1,000 and US$ 10,000, and a country’s
EEEIC International Publishing
2016-05-08 14:12:11
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/13
Transactions on Environment and Electrical Engineering; Vol 1, No 2 (2016): Regular Issue Vol 1, No 2 (2016)
eng
https://teee.eu/index.php/TEEE/article/download/13/34
Copyright (c) 2016 Muhammad Taheruzzaman, Przemyslaw Janik
oai:eeeic.org:article/15
2021-06-27T16:02:13Z
TEEE:ART
"160715 2016 eng "
2450-5730
dc
Experimental Analysis of Linear Induction Motor under Variable Voltage Variable Frequency (VVVF) Power Supply
Wakode, Prasenjit D.
Tariq, Mohd
Bhattacharya, Tapas Kumar
Linear Induction Motor; Variable Voltage Variable Frequency; Experimental; air gap flux density; blocked linor.
This paper presents the complete analysis of Linear Induction Motor (LIM) under VVVF. The complete variation of LIM air gap flux under ‘blocked Linor’ condition and starting force is analyzed and presented when LIM is given VVVF supply. The analysis of this data is important in further understanding of the equivalent circuit parameters of LIM and to study the magnetic circuit of LIM. The variation of these parameters is important to know the LIM response at different frequencies. The simulation and application of different control strategies such as vector control thus becomes quite easy to apply and understand motor’s response under such strategy of control.
EEEIC International Publishing
2016-05-08 14:12:11
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/15
Transactions on Environment and Electrical Engineering; Vol 1, No 2 (2016): Regular Issue Vol 1, No 2 (2016)
eng
Copyright (c) 2016 Prasenjit D. Wakode, Mohd Tariq, Tapas Kumar Bhattacharya
oai:eeeic.org:article/37
2021-06-27T16:02:13Z
TEEE:ART
"160808 2016 eng "
2450-5730
dc
Long-Term Monitoring of Flicker and Some Other Parameters of Voltage Quality
Krejci, Petr
VSB - Technical University of Ostrava
Santarius, Pavel
VSB - Technical University of Ostrava
Gono, Radomir
VSB - Technical University of Ostrava
Brunclik, Zdenek
Czech Power Company
Array
In 1997 cooperation began between the Faculty of Electrical Engineering and Computer Science and the power company CEZ on a joint project that involved monitoring selected voltage quality parameters. Over the course of several years measurements were carried out at 59 points of the distribution system at a low voltage (LV) level and their power supply nodes at medium voltage (MV) and high voltage (HV) levels, which constituted more than 100 measured points. The measurements continued until 2012 (with a one-year break in 2009) and with a total scope of five cycles of three-year measurements. The last phase of the measurements was focused, inter alia, on the evaluation of 15th and 21st voltage harmonics. From 2013, the cooperation focused again on monitoring flicker in localities with the occurrence of elevated levels of this voltage quality parameter. At these sites, the monitoring of flicker was carried out for two weeks in spring and autumn for a period of three years. The basis for evaluating the quality parameters is the standard EN 50160.
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/37
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
Copyright (c) 2016 Petr Krejci, Pavel Santarius, Radomir Gono, Zdenek Brunclik
oai:eeeic.org:article/19
2021-06-27T16:02:13Z
TEEE:ART
"160810 2016 eng "
2450-5730
dc
Superconducting Wind Turbine Generators
Pan, Yunying
Shanghai University of Electric Power
Gu, Danhzen
Shanghai University of Electric Power
Array
Wind energy is well known as a renewable energy because its clean and less polluted characteristic, which is the foundation of development modern wind electricity. To find more efficient wind turbine is the focus of scientists around the world. Compared from conventional wind turbines, superconducting wind turbine generators have advantages at zero resistance, smaller size and lighter weight. Superconducting wind turbine will inevitably become the main trends in this area. This paper intends to introduce the basic concept and principle of superconductivity, and compare form traditional wind turbine to obtain superiority, then to summary three proposed machine concept.While superconductivity have difficulty in modern technology and we also have proposed some challenges in achieving superconducting wind turbine finally.
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/19
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
Copyright (c) 2016 Yunying Pan, Danhzen Gu
oai:eeeic.org:article/35
2021-06-27T16:02:13Z
TEEE:ART
"160814 2016 eng "
2450-5730
dc
Description of Measurements on Biogas Stations
Novosád, Ladislav
Department of Electrical Power Engineering
VSB - Technical University of Ostrava
Ostrava-Poruba, Czech Republi
Hradilek, Zdenek
VŠB - TU Ostrava
kat. 451, A449
17. listopadu 15
708 33 Ostrava - Poruba http://homen.vsb.cz/~hra50/
Array
This paper focuses mainly on performance analysis for three biogas stations situated within the territory of the Czech Republic. This paper contains basic details of the individual biogas stations as well as description of their types. It also refers to the general description of the measurement gauge involved, with specifications of its potential use. The final part of this paper deals with the analysis of course data obtained, with special regard to voltage, current, active power and reactive power data.)
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/35
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
Copyright (c) 2016 Ladislav Novosád, Zdenek Hradilek
oai:eeeic.org:article/22
2021-06-27T16:02:13Z
TEEE:ART
"160823 2016 eng "
2450-5730
dc
Can we use IEC 61850 for safety related functions?
Rocca, Luca
University of Genoa
Pinceti, Paolo
University of Genoa
Caserza Magro, Micaela
University of Genoa
Array
Safety is an essential issue for processes that present high risk for human beings and environment. An acceptable level of risk is obtained both with actions on the process itself (risk reduction) and with the use of special safety systems that switch the process into safe mode when a fault or an abnormal operation mode happens. These safety systems are today based on digital devices that communicate through digital networks. The IEC 61508 series specifies the safety requirements of all the devices that are involved in a safety function, including the communication network. Also electrical generation and distribution systems are processes that may have a significant level of risk, so the criteria stated by the IEC 61508 applies.
Starting from this consideration, the paper analyzes the safety requirement for the communication network and compare them with the services of the communication protocol IEC 61850 that represents the most used protocol for automation of electrical plants. The goal of this job is to demonstrate that, from the technical point of view, IEC 61850 can be used for implementing safety-related functions, even if a formal safety certification is still missing.
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/22
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
Copyright (c) 2016 Luca Rocca, Paolo Pinceti, Micaela Caserza Magro
oai:eeeic.org:article/84
2017-09-12T15:49:15Z
TEEE:ART
"170119 2017 eng "
2450-5730
dc
Methodology for Measurement the Energy Efficiency Involving Solar Heating Systems Using Stochastic Modelling
Menita, Bruno G.
Experimental & Technological Research and Study Group (NExT), Federal Institute of Goias (IFG), Goiania, Goias State
Medeiros, Girodani Pacífico
Federal Institute of Goiás (IFG)
Domingos, Jose L.
Experimental & Technological Research and Study Group (NExT), Federal Institute of Goias (IFG), Goiania, Goias State
Domingues, Elder G.
Experimental & Technological Research and Study Group (NExT), Federal Institute of Goias (IFG), Goiania, Goias State
Alves, Aylton J.
Experimental & Technological Research and Study Group (NExT), Federal Institute of Goias (IFG), Goiania, Goias State
Faria, Adriano F.
Power Quality Sector CELG Distribution S/A (CELG-D) Goiania, Goias State
Miguel, Marcio L. S.
Power Quality Sector CELG Distribution S/A (CELG-D) Goiania, Goias State
Calixto, Wesley P.
Experimental & Technological Research and Study Group (NExT), Federal Institute of Goias (IFG), Goiania, Goias State
School of Electrical Engineering, Mechanical and Computer (EMC), Federal University of Goias (UFG) https://scholar.google.com/citations?user=xW11TA4AAAAJ&hl=en
Array
The purpose of the present study is to evaluate gains through measurement and verification methodology adapted from the International Performance Measurement and Verification Protocol, from case studies involving Energy Efficiency Projects in the Goias State, Brazil. This paper also presents the stochastic modelling for the generation of future scenarios of electricity saving resulted by these Energy Efficiency Projects. The model is developed by using the Geometric Brownian Motion Stochastic Process with Mean Reversion associated with the Monte Carlo simulation technique. Results show that the electricity saved from the replacement of electric showers by solar water heating systems in homes of low-income families has great potential to bring financial benefits to such families, and that the reduction in peak demand obtained from this Energy Efficiency Action is advantageous to the Brazilian electrical system. Results contemplate also the future scenarios of electricity saving and a sensitivity analysis in order to verify how values of some parameters influence on the results, once there is no historical data available for obtaining these values.
EEEIC International Publishing
2016-12-19 20:33:59
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/84
Transactions on Environment and Electrical Engineering; Vol 2, No 1 (2017): Vol 2, No 1 (2017): Regular Issue
eng
Electrical Engineering; Energy Efficiency
Copyright (c) 2017 Bruno G. Menita, Girodani Pacífico Medeiros, Jose L. Domingos, Elder G. Domingues, Aylton J. Alves, Adriano F. Faria, Marcio L. S. Miguel, Wesley P. Calixto
oai:eeeic.org:article/21
2020-10-25T08:57:06Z
TEEE:ART
"160826 2016 eng "
2450-5730
dc
Design and realization of a tactile switches module with capacitive sensing method implemented with a microcontroller
Capineri, Lorenzo
University of Florence https://orcid.org/0000-0003-4432-3197
Array
The aim of this research project is the architecture and the design of an electronic system for controlling domestic tactile switches to be integrated into a home automation system based on the KNX standard. All the steps that led to the fulfillment of the finished prototype are reported, from the study and design of the capacitive tactile sensors and the electronic control board according to the specifications imposed by KNX standard. The touch event detection is reached as a trade-off with the footprint requirements of the switch. Experimental results of the fabricated prototype are presented to demonstrate the feasibility of this device.
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/21
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
Copyright (c) 2016 Lorenzo Capineri
oai:eeeic.org:article/30
2020-10-25T08:57:09Z
TEEE:ART
"160901 2016 eng "
2450-5730
dc
Dynamic Voltage Stability Studies using a Modified IEEE 30-Bus System
Oni, Oluwafemi Emmanuel
University of Kwazulu-Natal
Mbangula, Kamati I.
University of Namibia. Ongwediva 3624, Namibia
Davidson, Innocent E.
Department of Electrical Power Engineering, Durban University of Technology. Durban 4001, South Africa
Array
Power System stability is an essential study in the planning and operation of an efficient, economic, reliable and secure electric power system because it encompasses all the facet of power systems operations, from planning, to conceptual design stages of the project as well as during the systems operating life span. This paper presents different scenario of power system stability studies on a modified IEEE 30-bus system which is subjected to different faults conditions. A scenario whereby the longest high voltage alternating current (HVAC) line is replaced with a high voltage direct current (HVDC) line was implemented. The results obtained show that the HVDC line enhances system stability more compared to the contemporary HVAC line. Dynamic analysis using RMS simulation tool was used on DigSILENT PowerFactory.
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
application/pdf
https://teee.eu/index.php/TEEE/article/view/30
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
https://teee.eu/index.php/TEEE/article/download/30/77
Copyright (c) 2016 Oluwafemi Emmanuel Oni, Kamati I. Mbangula, Innocent E. Davidson
oai:eeeic.org:article/39
2020-10-25T08:57:13Z
TEEE:ART
"160903 2016 eng "
2450-5730
dc
Degree of Fault Tolerance as a Comprehensive Parameter for Reliability Evaluation of Fault Tolerant Electric Traction Drives
Bolvashenkov, Igor
Technical University of Munich (TUM)
Herzog, Hans-Georg
Technical University of Munich (TUM) http://www.professoren.tum.de/en/herzog-hans-georg/
Array
This paper describes a new approach and methodology of quantitative assessment of the fault tolerance of electric power drive consisting of the multi-phase traction electric motor and multilevel electric inverter. It is suggested to consider such traction drive as a system with several degraded states. As a comprehensive parameter for evaluating of the fault tolerance, it is proposed to use the criterion of degree of the fault tolerance. For the approbation of the proposed method, the authors carried out research and obtained results of its practical application for evaluating the fault tolerance of the power train of an electrical helicopter.
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/39
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
https://teee.eu/index.php/TEEE/article/download/39/81
Copyright (c) 2016 Igor Bolvashenkov, Hans-Georg Herzog
oai:eeeic.org:article/34
2020-10-25T08:57:10Z
TEEE:ART
"160922 2016 eng "
2450-5730
dc
Value Stream Mapping for Evaluation of Load Scheduling Possibilities in a District Heating Plant
Melsas, Raivo
Tallinn University of Technology
Rosin, Argo
Tallinn University of Technology
Drovtar, Imre
Tallinn University of Technology
Array
The aim of this paper is to provide a solution for load scheduling by implementing value stream mapping, which is a straightforward enough for production management. Decision makers in the industry should have a clear understanding about positive effect from load scheduling and its effect to production outcome and process availability. Value stream mapping is a well-known process optimization tool from lean production philosophy. The aim of value stream mapping is to shorten the lead time of industrial processes and to reduce the intermediate stock amounts. By complementing value stream map with process energy intensity and energy stored in intermediate stocks, we can promote load scheduling possibilities. Our methodology provides a tool that is understandable and traceable for industry-minded decision makers. Finally, we present a real life test example for the new methodology, which is based on the production process of a district heating plant.
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/34
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
Copyright (c) 2016 Raivo Melsas, Argo Rosin, Imre Drovtar
oai:eeeic.org:article/29
2020-10-25T08:57:08Z
TEEE:ART
"160930 2016 eng "
2450-5730
dc
A Review of LCC-HVDC and VSC-HVDC Technologies and Applications
Oni, Oluwafemi Emmanuel
University of Kwazulu-Natal
Mbangula, Kamati I.
Department Electrical Engineering, University of KwaZulu-Natal. Durban
Davidson, Innocent E.
Department of Electrical Power Engineering, Durban University of Technology. Durban
Array
High Voltage Direct Current (HVDC) systems has been an alternative method of transmitting electric power from one location to another with some inherent advantages over AC transmission systems. The efficiency and rated power carrying capacity of direct current transmission lines highly depends on the converter used in transforming the current from one form to another (AC to DC and vice versa). A well configured converter reduces harmonics, increases power transfer capabilities, and reliability in that it offers high tolerance to fault along the line. Different HVDC converter topologies have been proposed, built and utilised all over the world. The two dominant types are the line commutated converter LCC and the voltage source converter VSC. This review paper evaluates these two types of converters, their operational characteristics, power rating capability, control capability and losses. The balance of the paper addresses their applications, advantages, limitations and latest developments with these technologies.
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/29
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
Copyright (c) 2016 Oluwafemi Emmanuel Oni, Kamati I. Mbangula, Innocent E. Davidson
oai:eeeic.org:article/20
2020-10-25T08:57:05Z
TEEE:ART
"161015 2016 eng "
2450-5730
dc
Optimization of Distribution System Reliability
Zemite, Laila
Riga Technical University
Faculty of Electrical and Power engineering,
Riga
Gerhards, Janis
Riga Technical University
Faculty of Electrical and Power engineering,
Riga
Gorobecs, Mihails
Riga Technical University
Faculty of Electrical and Power engineering,
Riga
Ļevčenkovs, Anatolijs
Riga Technical University
Faculty of Electrical and Power engineering,
Riga
Array
Reliability analysis of distribution systems has been attracting increasing attention. A special concern pertains to the distribution networks on which most failures occurs. The optimization of distribution system of breakers and power switches is a possible strategy to improve reliability. The paper describes development procedure for modelling restoring after a fault and calculating associated reliability indices and customers’ outage costs. The developed model of the network and reliability and outage costs calculating algorithm is suitable for multi-criteria analysis of the network. Proposed reliability and outage costs calculation algorithm is based on Monte Carlo simulation and genetic algorithm.
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/20
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
https://teee.eu/index.php/TEEE/article/download/20/0
https://teee.eu/index.php/TEEE/article/download/20/194
Copyright (c) 2016 Laila Zemite, Janis Gerhards, Mihails Gorobecs, Anatolijs Ļevčenkovs
oai:eeeic.org:article/56
2020-10-25T08:57:15Z
TEEE:ART
"161004 2016 eng "
2450-5730
dc
A Methodology for Long-Term Analysis of Innovative Signalling Systems on Regional Rail Lines
D'Acierno, Luca
Department of Civil, Architectural and Environmental Engineering, Federico II University of Naples
Botte, Marilisa
Department of Civil, Architectural and Environmental Engineering, Federico II University of Naples
Di Salvo, Claudia
GE Oil&Gas
Caropreso, Chiara
Department of Civil, Architectural and Environmental Engineering, Federico II University of Naples
Montella, Bruno
Department of Civil, Architectural and Environmental Engineering, Federico II University of Naples
Array
A rail system may be considered a useful tool for reducing vehicular flows on a road system (i.e. cars and trucks), especially in high-density contexts such as urban and metropolitan areas where greenhouse gas emissions need to be abated. In particular, since travellers maximise their own utility, variations in mobility choices can be induced only by significantly improving the level-of-service of public transport. Our specific proposal is to identify the economic and environmental effects of implementing an innovative signalling system (which would reduce passenger waiting times) by performing a cost-benefit analysis based on a feasibility threshold approach. Hence, it is necessary to calculate long-term benefits and compare them with intervention costs. In this context, a key factor to be considered is travel demand estimation in current and future conditions. This approach was tested on a regional rail line in southern Italy to show the feasibility and utility of the proposed methodology.
EEEIC International Publishing
2016-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/56
Transactions on Environment and Electrical Engineering; Vol 1, No 3 (2016): Special Issue -Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)
eng
Copyright (c) 2016 Luca D'Acierno, Marilisa Botte, Claudia Di Salvo, Chiara Caropreso, Bruno Montella
oai:eeeic.org:article/130
2021-06-27T16:02:17Z
TEEE:ART
"190318 2019 eng "
2450-5730
dc
Sustainable Adoption of Connected Vehicles in the Brazilian Landscape: Policies, Technical Specifications and Challenges
do Nascimento, Douglas Aguiar
University of Campinas http://lcv.fee.unicamp.br/ http://orcid.org/0000-0002-5464-3015
Iano, Yuzo
University of Campinas http://lcv.fee.unicamp.br/ http://orcid.org/0000-0002-9843-9761
Loschi, Hermes José
University of Campinas http://lcv.fee.unicamp.br/ http://orcid.org/0000-0001-8057-0991
Razmjooy, Navid
Tafresh University http://orcid.org/0000-0002-0102-1482
Sroufe, Robert
Duquesne University http://orcid.org/0000-0002-7903-9180
Oliveira, Vlademir de Jesus Silva
Mato Grosso State University http://orcid.org/0000-0001-9264-314X
Castro, Diego Arturo Pajuelo
University of Campinas http://orcid.org/0000-0003-0067-5078
Montagner, Matheus
Santa Catarina State University
Array
This review addresses the intervehicular communication in Connected Vehicles (CV) by emphasizing V2V (vehicle-to-vehicle) and V2I (vehicle-to-infrastructure) communications in terms of evolution, current standards, state-of-the-art studies, embedded devices, simulation, trends, challenges, and relevant legislation. This review is based on studies conducted from 2009 to 2019, government reports about the sustainable deployment of these technologies and their adoption in the Brazilian automotive market. Moreover, WAVE (Wireless Access in Vehicular Environment) and DSRC (Dedicated Short-range Communication) standards, the performance analysis of communication parameters and intervehicular available at the market are also described. The current status of ITS (Intelligent Transportation System) development in Brazil was reviewed, as well as the research institutes and governmental actions focused on introducing the concept of connected vehicles into the society. The Brazilian outlook for technological adoption concerning CVs was also discussed. Moreover, challenges related to technical aspects, safety and environmental issues, and the standardization for vehicle communication are also described. Finally, this review highlights the challenges and proposals from available technologies devoted to the roads and vehicular infrastructure communication, their evolution and upcoming trends.
EEEIC International Publishing
2018-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/130
Transactions on Environment and Electrical Engineering; Vol 3, No 1 (2019): Regular Issue (2018/2019)
eng
Electrical Engineering; Informatics; Telematics;Information Technologies
2009 to 2019
Copyright (c) 2019 Douglas Aguiar do Nascimento, Yuzo Iano, Hermes José Loschi, Navid Razmjooy, Robert Sroufe, Vlademir de Jesus Silva Oliveira, Diego Arturo Pajuelo Castro, Matheus Montagner
oai:eeeic.org:article/114
2021-06-27T16:02:16Z
TEEE:ART
"171026 2017 eng "
2450-5730
dc
Investigation of Supra-Harmonics through Signal Processing Methods in Smart Grids
Yalcin, Turgay
Ondokuz Mayis University, Electrical&Electronic Engineering Faculty, Samsun
Ozdemir, Muammer
Ondokuz Mayis University, Electrical&Electronic Engineering Faculty, Samsun
Kostyla, Pawel
Faculty of Electrical Engineering, Wroclaw University of Science and Technology
Leonowicz, Zbigniew
Wroclaw University of Science and Technology http://zleonowicz.republika.pl
Array
Nowadays supra-harmonic distortion studies are gaining attention day by day in power quality research area. When handling communication systems especially Power Line Carrier (PLC) systems in frequency range 2- 150 kHz, they are suitable for causing electromagnetic interference (EMI) to other systems. This study shows results of analysis employing advanced method called ensemble empirical mode decomposition (EEMD) to describe supra-harmonic distortion. Unlike the traditional method (short time fourier transform- STFT), EEMD gives extensive representation for supra-harmonic components
EEEIC International Publishing
2017-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/114
Transactions on Environment and Electrical Engineering; Vol 2, No 2 (2017): Special Issue 17th International Conference on Environment and Electrical Engineering
eng
https://teee.eu/index.php/TEEE/article/download/114/490
Electrical Engineering
Copyright (c) 2017 Turgay Yalcin, Muammer Ozdemir, Pawel Kostyla, Zbigniew Leonowicz
oai:eeeic.org:article/116
2021-06-27T16:02:16Z
TEEE:ART
"180124 2018 eng "
2450-5730
dc
System Identification and Tuning of Wireless Power Transfer Systems with Multiple Magnetically Coupled Resonators
Winges, Johan
Chalmers University of Technology https://www.chalmers.se/sv/personal/Sidor/johan-winges.aspx http://orcid.org/0000-0001-8889-7884
Rylander, Thomas
Chalmers University of Technology https://www.chalmers.se/en/Staff/Pages/thomas-rylander.aspx
Petersson, Carl
QRTECH AB
Ekman, Christian
QRTECH AB
Johansson, Lars-Åke
QRTECH AB
McKelvey, Tomas
Chalmers University of Technology https://www.chalmers.se/en/Staff/Pages/tomas-mc-kelvey.aspx http://orcid.org/0000-0003-2982-5535
Array
We present a procedure for system identification and tuning of a wireless power transfer (WPT) system with four magnetically coupled resonators, where each resonator consists of a coil and a capacitor bank. The system-identification procedure involves three main steps: 1) individual measurement of the capacitor banks in the system; 2) measurement of the frequency-dependent two-port impedance matrix of the magnetically coupled resonators; and 3) determining the inductance of all coils and their corresponding coupling coefficients using a Bayesian approach. The Bayesian approach involves solving an optimization problem where we minimize the mismatch between the measured and simulated impedance matrix together with a penalization term that incorporates information from a direct measurement procedure of the inductance and losses of the coils.
This identification procedure yields an accurate system model which we use to tune the four capacitance values to recover high system-performance and account for, e.g., manufacturing tolerances and coil displacement. For a prototype WPT system, we achieve 3.3~kW power transfer with 91\% system efficiency over an air-gap distance of approximately 20~cm.
EEEIC International Publishing
2017-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/116
Transactions on Environment and Electrical Engineering; Vol 2, No 2 (2017): Special Issue 17th International Conference on Environment and Electrical Engineering
eng
https://teee.eu/index.php/TEEE/article/download/116/0
Electrical Engineering;
Copyright (c) 2018 Johan Winges, Thomas Rylander, Carl Petersson, Christian Ekman, Lars-Åke Johansson and Tomas McKelvey
oai:eeeic.org:article/120
2021-06-27T16:02:16Z
TEEE:ART
"180625 2018 eng "
2450-5730
dc
About the influence of temperature and humidity level on pulse shape parameters of positive DC corona discharges in air
Lühring, Ulrich
TU Dortmund University
Wienold, Daniel
TU Dortmund University
Jenau, Frank
TU Dortmund University
Array
The increasing importance of HVDC transmission systems requires the development and evaluation of suitable basic approaches regarding the partial discharge diagnosis. Although diverse promising approaches are identified, recent research is focused on standard atmospheric conditions. Due to the fact that this is just partly consistent to real operating conditions, additional research is required. Focusing on the time domain analysis of corona discharges, occurring under positive DC voltage stress in air, a measurement method for investigating the influence of varying atmospheric quantities is presented. Measurements are carried out for five different relative humidity levels in the range of 20 % to 95 % and for four different temperature levels in the range of 20 °C to 65 °C. As characterizing pulse shape parameters, the rise time, the pulse width and the fall time are determined as well as the apparent charge. The gained values are compared to each other and reconciled with physical processes.
EEEIC International Publishing
2018-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/120
Transactions on Environment and Electrical Engineering; Vol 3, No 1 (2019): Regular Issue (2018/2019)
eng
https://teee.eu/index.php/TEEE/article/download/120/511
Copyright (c) 2018 Ulrich Lühring, Daniel Wienold, Frank Jenau
oai:eeeic.org:article/118
2021-06-27T16:02:16Z
TEEE:ART
"180903 2018 eng "
2450-5730
dc
Theoretical analysis of the efficiency of a V2G wireless charger for Electric Vehicles
Triviño, Alicia
University of Málaga
Gonzalez-Gonzalez, Jose M.
University of Málaga
Aguado, Jose A.
University of Málaga
Array
V2G (Vehicle-to-grid) technology will report important benefits for the operation and safety of the grid. In order to facilitate the expansion of the V2G technology in a future, it is recommended to offer the drivers with easy to use methods to charge and discharge their EV batteries. In this sense, wireless chargers are expected to play a relevant role in the future electrical networks as it reduces the users intervention. The development of this kind of system is still open to improve them in terms of their operation, their compliance and their control. An important issue for the evaluation of these systems is the efficiency, which measures the power losses occurring in the system. This paper addresses a deep study about the losses in a bidirectional wireless charger. Then, it provides with a mathematical model to characterize them. This model is validated by means of experimental results conducted in a 3.7-kW prototype.
EEEIC International Publishing
2018-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/118
Transactions on Environment and Electrical Engineering; Vol 3, No 1 (2019): Regular Issue (2018/2019)
eng
Copyright (c) 2018 Alicia Trivino, Jose M. Gonzalez-Gonzalez and Jose A. Aguado
oai:eeeic.org:article/123
2021-06-27T16:02:16Z
TEEE:ART
"181204 2018 eng "
2450-5730
dc
Control Strategy of Thyristors Switched SVCs with High Power Quality
Panfilov, Dmitry Ivanovich
"Moscow Pover Engeniring Institute",
Stock Company "G.M.Krzhizhanovsky Power Engineering Institute"
ElGebaly, Ahmed
Rozhkov, Alexander Nikolaevich
Astashev, Michael
Array
In this paper, new static VAR compensators SVCs schemes for inductive and capacitive reactive power are developed. The provided schemes improve the flexibility and power system quality of SVCs by developing new circuit topologies with new control strategy of the reactive power. New circuit schemes are introduced for thyristors switched reactors TSR and thyristors switched capacitors TSC to design harmonic-free SVC with higher discrete number of reactive power levels. This paper provides the control algorithm and block diagram of the new SVCs schemes. The switching strategies of TSR and TSC are described and implemented. The new scheme of TSC requires special modifications to decrease transient effects and implementation of specific switching strategies to acquire SVC with high power quality indexes.
EEEIC International Publishing
2018-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/123
Transactions on Environment and Electrical Engineering; Vol 3, No 1 (2019): Regular Issue (2018/2019)
eng
Electrical Engineering
Copyright (c) 2018 Dmitry Ivanovich Panfilov, Ahmed ElGebaly, Alexander Nikolaevich Rozhkov, Michael Astashev
oai:eeeic.org:article/126
2021-06-27T16:02:17Z
TEEE:ART
"181212 2018 eng "
2450-5730
dc
Stair-like Multivariable Generalized Predictive Control of Pulverizing System in Thermal Power Plants
ZHANG, Jiansheng
Shenhua Guoneng Energy Group Corporation, Limited
ZHANG, Gang
School of Control and Computer Engineering
North China Electric Power University
Beijing
GAO, Yaokui
School of Control and Computer Engineering
North China Electric Power University
Beijing
HU, Yong
School of Control and Computer Engineering
North China Electric Power University
Beijing
Array
Pulverizing system is an important part in the clean and efficient utilization of coal in thermal power plant, and the optimal control of the system is an important way to achieve this goal. This paper presents a stair-like multivariable generalized predictive control scheme for a pulverizing system. This control scheme focuses on the problem of predictive control algorithm in practical application, and integrates the feedforward experience in traditional control schemes of pulverizing system. Simulation results showed that the scheme are able to realize the decoupling control of the pulverizing system, avoid the problem of matrix inversion, reduce the amount of calculation, and has certain engineering application value.
EEEIC International Publishing
2018-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/126
Transactions on Environment and Electrical Engineering; Vol 3, No 1 (2019): Regular Issue (2018/2019)
eng
Production of electric energy or power. Powerplants.
Copyright (c) 2018 Jiansheng ZHANG, Gang ZHANG, Yaokui GAO, Yong HU
oai:eeeic.org:article/131
2021-06-27T16:02:17Z
TEEE:ART
"190216 2019 eng "
2450-5730
dc
Comparison of Solvers Performance for Load Flow Analysis
Suresh, Vishnu Sidaarth
Wroclaw University of Science and Technology
Array
Load flow studies are carried out in order to find a steady state solution of a power system network. It is done to continuously monitor the system and decide upon future expansion of the system. The parameters of the system monitored are voltage magnitude, voltage angle, active and reactive power. This paper presents techniques used in order to obtain such parameters for a standard IEEE – 30 bus and IEEE-57 bus network and makes a comparison into the differences with regard to computational time and effectiveness of each solver
EEEIC International Publishing
2018-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/131
Transactions on Environment and Electrical Engineering; Vol 3, No 1 (2019): Regular Issue (2018/2019)
eng
Copyright (c) 2019 Vishnu Sidaarth Suresh
oai:eeeic.org:article/129
2021-06-27T16:02:17Z
TEEE:ART
"190301 2019 eng "
2450-5730
dc
Literature Survey of Interleaved DC-DC Step-Down Converters for Proton Exchange Membrane Electrolyzer Applications
Guida, Vittorio
Université de Lorraine , GREEN
Guilbert, Damien
Unversité de Lorraine, GREEN
Douine, Bruno
Unversité de Lorraine, GREEN
Array
Recently, the use of electrolyzers for hydrogen production through water electrolysis is of great interest in the industrial field to replace current hydrogen production pathways based on fossil fuels (e.g. oil, coal). The electrolyzers must be supplied with a very low DC voltage in order to produce hydrogen from the deionized water. For this reason, DC-DC step-down converters are generally used. However, these topologies present several drawbacks from output current ripple and voltage gain point of view. In order to meet these expectations, interleaved DC-DC step-down converters are considered as promising and interesting candidates to supply proton exchange membrane (PEM) electrolyzers. Indeed, these converters offer some advantages including output current ripple reduction and reliability in case of power switch failures. In addition, over the last decade, many improvements have been brought to these topologies with the aim to enhance their conversion gain. Hence, the main goal of this paper is to carry out a thorough state-of-the-art of different interleaved step-down DC-DC topologies featuring a high voltage gain, needed for PEM electrolyzer applications.
EEEIC International Publishing
2018-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/129
Transactions on Environment and Electrical Engineering; Vol 3, No 1 (2019): Regular Issue (2018/2019)
eng
Copyright (c) 2019 Vittorio Guida, Damien Guilbert, Bruno Douine
oai:eeeic.org:article/111
2021-06-27T16:02:15Z
TEEE:ART
"170908 2017 eng "
2450-5730
dc
An Analytical Approach For Transmission Expansion Planning with Generation Variations
Kumar, Maneesh
Indian Institute of Technology Roorkee
Kaur, Raminder
PEC University of Technology Chandigarh
Array
Planning for expanding a power system under different scenarios is one of the major challenge for power engineers hence, it is very important and essential to implement a well-balanced and feasible system over a time horizon under suitable assumptions and available constraints. Transmission expansion planning is one of this task. Here it is important to develop a suitable planning structure. In this paper some analytical approaches have been implemented for specific load condition with variations in generation.
EEEIC International Publishing
2017-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/111
Transactions on Environment and Electrical Engineering; Vol 2, No 2 (2017): Special Issue 17th International Conference on Environment and Electrical Engineering
eng
https://teee.eu/index.php/TEEE/article/download/111/479
Copyright (c) 2017 Maneesh Kumar, Raminder Kaur
oai:eeeic.org:article/136
2023-09-24T09:56:04Z
TEEE:ART
"191225 2019 eng "
2450-5730
dc
Comprehensive Analysis of Pre-Charge Sequence in Automotive Battery Systems
Ozguc, Murat Kubilay
AVL Research & Engineering, Turkey https://www.avl.com/web/guest/-/avl-turkey
Ipek, Eymen
AVL Research & Engineering, Turkey https://www.avl.com/web/guest/-/avl-turkey
Aras, Kadir
AVL Research & Engineering, Turkey https://www.avl.com/web/guest/-/avl-turkey
Erhan, Koray
AVL Research & Engineering, Turkey https://www.avl.com/web/guest/-/avl-turkey
Array
Electric vehicles (EV) have brought promising technologies for future mobility solutions. As one of the key components of EVs, battery systems have fundamental functions which disconnect the battery during parking and in case of failure. To provide a safe system, specialized high voltage (HV) electromechanical switches are used to perform these major functions such as switch on, switch off or pre-charging. Due to these components can be easily damaged, expensive, heavy and bulky, a solution based on pure semiconductors may be desired to accomplish these operations. Many studies were exhibited on EV battery systems regarding developing solid-state systems for HV switchgear. Developing technology on semiconductor devices allows to make a safety concept based on only solidstate components. This study presents a comprehensive analysis off pre-charge sequences between conventional and semiconductor switchgear to be used in electric vehicle battery systems. Spice simulations are presented to investigate advantages and drawbacks of these systems.
EEEIC International Publishing
2021-01-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/136
Transactions on Environment and Electrical Engineering; Vol 4, No 1 (2021): Regular issue (2021-2022)
eng
https://teee.eu/index.php/TEEE/article/download/136/593
Electrical Engineering; Energy storage systems
Copyright (c) 2020 Murat Kubilay Ozguc, Eymen Ipek, Kadir Aras, Koray Erhan
oai:eeeic.org:article/137
2023-09-24T09:56:04Z
TEEE:ART
"200213 2020 eng "
2450-5730
dc
Feasibility Check of Electrification in Metrobus Line
Gucukoglu, Turgay
Sarı, Haluk
Erhan, Koray
AVL Research & Engineering, Turkey
Array
Today, climate change is a significant effect on population growth, especially in big cities. Transport in metropolitan cities is the most important reason for climate change with the contribution of CO2 pollution that threatens human health and the environment. Electrified transport systems can, therefore, provide a suitable solution to air pollution and health problems. This study investigates the feasibility of applying electric buses to the Metrobus line in Istanbul. Initially, Metrobus line data regarding the number of vehicles, number of stops, route length is gathered from the official Istanbul transportation system to define how much energy is needed for the routes. Then, it is analyzed how to re-charge proposed batteries for the allocation of chargers on the stations where it is applicable. It is observed that the electrification of each line is not possible.
EEEIC International Publishing
2021-01-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/137
Transactions on Environment and Electrical Engineering; Vol 4, No 1 (2021): Regular issue (2021-2022)
eng
Electrical Engineering; Energy storage systems
Copyright (c) 2020 Turgay Gucukoglu, Haluk Sari and Koray Erhan
oai:eeeic.org:article/138
2023-09-24T09:56:04Z
TEEE:ART
"200614 2020 eng "
2450-5730
dc
Modeling and Performance Evaluation of an Electromagnetic Voltage Regulator via Series Compensation
Brito, Vinícius Henrique Farias
Federal University of Uberlandia
Oliveira, José Carlos de
Federal University of Uberlandia
Santilio, Fabricio Parra
Federal University of Mato Grosso
Array
Although there currently exists a wide range of voltage regulators that are commercially available, the search for devices with a simpler physical design remains the focus of research studies. Following this line, an electromagnetic voltage regulator (EVR) arrangement has been proposed. The EVR is constituted of an autotransformer that supplies, via discrete taps, a series transformer that injects voltage for regulating the feeder voltage. Even though its operating principle is shown as being similar to that of other devices on the market, the physical arrangement and operating strategy of EVR show novelties which result in properties such as: economic attractiveness, constructive simplicity, and operational reliability. Moreover, when installing voltage regulators, efficacy studies must be carried out to optimize equipment design. In this context, this paper aims at evaluating the factors that influence the effectiveness of the EVR in restoring voltage variations according to the determinations imposed by regulatory agencies. The ultimate goal of this study is to determine the voltage deviation range that the EVR is able to restore. To achieve this goal, a mathematical modeling of the EVR is given and study cases are computationally carried out to investigate its performance when connected to a typical distribution feeder.
EEEIC International Publishing
2021-01-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/138
Transactions on Environment and Electrical Engineering; Vol 4, No 1 (2021): Regular issue (2021-2022)
eng
Electrical Engineering
Copyright (c) 2020 Vinícius Henrique Farias Brito, José Carlos de Oliveira, Fabricio Parra Santilio
oai:eeeic.org:article/139
2023-09-24T09:56:04Z
TEEE:ART
"201024 2020 eng "
2450-5730
dc
An Ingenious Application-Specific Quality Assessment Methods for Compressed Wireless Capsule Endoscopy Images
Fante, Kinde Anlay
Jimma University http://orcid.org/0000-0003-2029-8214
Abdurahman, Fetulhak
Jimma University http://orcid.org/0000-0002-5670-0319
Gemeda, Mulugeta Tegegn
Jimma University
Array
Image quality assessment methods are used in different image processing applications. Among them, image compression and image super-resolution can be mentioned in wireless capsule endoscopy (WCE) applications. The existing image compression algorithms for WCE employ the generalpurpose image quality assessment (IQA) methods to evaluate the quality of the compressed image. Due to the specific nature of the images captured by WCE, the general-purpose IQA methods are not optimal and give less correlated results to that of subjective IQA (visual perception). This paper presents improved image quality assessment techniques for wireless capsule endoscopy applications. The proposed objective IQA methods are obtained by modifying the existing full-reference image quality assessment techniques. The modification is done by excluding the noninformative regions, in endoscopic images, in the computation of IQA metrics. The experimental results demonstrate that the proposed IQA method gives an improved peak signal-tonoise ratio (PSNR) and structural similarity index (SSIM). The proposed image quality assessment methods are more reliable for compressed endoscopic capsule images.
EEEIC International Publishing
2021-01-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/139
Transactions on Environment and Electrical Engineering; Vol 4, No 1 (2021): Regular issue (2021-2022)
eng
Electrical Engineering
Copyright (c) 2020 Kinde Anlay Fante, Fetulhak Abdurahman, Mulugeta Gemeda Tegegn
oai:eeeic.org:article/141
2023-09-24T09:56:04Z
TEEE:ART
"210627 2021 eng "
2450-5730
dc
A comparative study among PID structures applied on a Buck converter control
Martins, Luís Fabiano Barone
Federal Institute of Paraná https://reitoria.ifpr.edu.br/ http://orcid.org/0000-0002-0862-0576
Breganon, Ricardo
Federal Institute of Paraná https://reitoria.ifpr.edu.br/ http://orcid.org/0000-0002-8203-8699
Alves, Uiliam Nelson Lendzion Tomaz
Federal Institute of Paraná https://reitoria.ifpr.edu.br/ http://orcid.org/0000-0002-5820-9275
Almeida, João Paulo Lima Silva
Federal Institute of Paraná https://reitoria.ifpr.edu.br/
Fortes, Elenilson de Vargas
Goiás Federal Institute http://orcid.org/0000-0002-0683-3914
Array
In this work, a state-space model and control of a DC-DC Buck converter, considering a continuous operating, are presented. A PID controller is considered in the strategy, that considers a low pass filter in the derivative term. The proposed model is validated by comparing it with a switched model. The PID gains are obtained by the Ziegler-Nichols method. In order to improve the system’s performance considering an environment containing high-frequency noises, the modified PID controller is implemented with several configurations.
EEEIC International Publishing
2021-01-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/141
Transactions on Environment and Electrical Engineering; Vol 4, No 1 (2021): Regular issue (2021-2022)
eng
https://teee.eu/index.php/TEEE/article/download/141/637
Copyright (c) 2021 Luís Fabiano Barone Martins, Ricardo Breganon, Uiliam Nelson Lendzion Tomaz Alves, João Paulo Lima Silva Almeida, Elenilson de Vargas Fortes
oai:eeeic.org:article/144
2023-09-24T09:56:04Z
TEEE:ART
"220106 2022 eng "
2450-5730
dc
Prediction of Probabilistic Transient Stability Using Support Vector Machine
Shahzad, Umair
Array
Transient stability assessment is an integral part of dynamic security assessment of power systems. Traditional methods of transient stability assessment, such as time domain simulation approach and direct methods, are appropriate for offline studies and thus, cannot be applied for online transient stability prediction, which is a major requirement in modern power systems. This motivated the requirement to apply an artificial intelligence-based approach. In this regard, supervised machine learning is beneficial for predicting transient stability status, in the presence of uncertainties. Therefore, this paper examines the application of a binary support vector machine-based supervised machine learning, for predicting the transient stability status of a power system, considering uncertainties of various factors, such as load, faulted line, fault type, fault location and fault clearing time. The support vector machine is trained using a Gaussian Radial Basis function kernel and its hyperparameters are optimized using Bayesian optimization. Results obtained for the IEEE 14-bus test system demonstrated that the proposed method offers a fast technique for probabilistic transient stability status prediction, with an excellent accuracy. DIgSILENT PowerFactory and MATLAB was utilized for transient stability time-domain simulations (for obtaining training data for support vector machine) and for applying support vector machine, respectively.
EEEIC International Publishing
2021-01-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/144
Transactions on Environment and Electrical Engineering; Vol 4, No 1 (2021): Regular issue (2021-2022)
eng
Copyright (c) 2022 Umair Shahzad
oai:eeeic.org:article/146
2023-09-24T07:58:46Z
TEEE:ART
"230924 2023 eng "
2450-5730
dc
Comparative Analysis of Distribution Network Cost Allocation Alternatives
Guarizi, Rodrigo Delfim
University of São Paulo http://orcid.org/0000-0002-6785-5674
Lotero, Roberto C.
Western Paraná State University (UNIOESTE) http://orcid.org/0000-0002-6599-2667
London Jr., João Bosco A.
São Carlos School of Engineering, University of São Paulo (USP), São Carlos http://orcid.org/0000-0001-9005-8297
Array
This paper presents a comparative study among methods of allocation of fixed costs in Distribution Networks (DNs). The application of these methods allows obtaining distribution use-of-system charges. Three pricing mechanisms composed of two part tariffs are evaluated. In the three mechanisms, the first part is obtained by the Long Run Incremental Cost (LRIC) method. The second one is determined by the following methods: Postage Stamp (PS), MW-Mile (MWM) or Ramsey-Boiteux (RB). The characterization and comparison of each method are performed from the point of view of regulatory principles that define guidelines on network pricing. The results allow identifying the adherence of the methods in compliance with the regulatory principles. Conflicting character between different principles is observed. The methods are tested and validated in the IEEE13-node distribution network. A study along these lines points to the proposition of new alternatives in pricing the use of DNs in the face of the growth of Distributed Energy Resources.
EEEIC International Publishing
2023-09-24 09:02:03
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/146
Transactions on Environment and Electrical Engineering; Vol 5, No 1 (2023): Regular Issue 2023
eng
Electrical Engineering
Copyright (c) 2023 Rodrigo D. Guarizi, Roberto C. Lotero, João Bosco A. London, Jr.
oai:eeeic.org:article/96
2021-06-27T16:02:14Z
TEEE:ART
"170627 2017 eng "
2450-5730
dc
Model predictive Controller for Mobile Robot
Rezaee, Alireza
University of Tehran
Array
This paper proposes a Model Predictive Controller (MPC) for control of a P2AT mobile robot. MPC refers to a group of controllers that employ a distinctly identical model of process to predict its future behavior over an extended prediction horizon. The design of a MPC is formulated as an optimal control problem. Then this problem is considered as linear quadratic equation (LQR) and is solved by making use of Ricatti equation. To show the effectiveness of the proposed method this controller is implemented on a real robot. The comparison between a PID controller, adaptive controller, and the MPC illustrates advantage of the designed controller and its ability for exact control of the robot on a specified guide path.
EEEIC International Publishing
2017-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/96
Transactions on Environment and Electrical Engineering; Vol 2, No 2 (2017): Special Issue 17th International Conference on Environment and Electrical Engineering
eng
robotic, control
Copyright (c) 2017 Alireza Rezaee
oai:eeeic.org:article/74
2017-09-12T15:49:15Z
TEEE:ART
"170127 2017 eng "
2450-5730
dc
Analytical Models Synthesis of Power Electronic Converters
Ales, Achour
Grenoble Institute of Technology
Schanen, Jean-Luc
Grenoble Institute of Technology
Moussaoui, Djelloul
Grenoble Institute of Technology
Roudet, James
University Joseph Fourier, Grenoble
Array
In this paper we proposes a synthesis of different mathematical models of power electronic converters based on Thevenin/Norton equivalent circuits. Those models, composed by impedances and harmonic noise sources, are helpful to predict the conducted ElectroMagnetic Interferences (EMI) generated by converters connected to the electrical network. Moreover, the extracted impedances are determining for sizing EMC filters. The proposed analytical model is tested with PSpice simulations and validated by experimental measurements, from DC frequency until 30MHz.
EEEIC International Publishing
2016-12-19 20:33:59
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/74
Transactions on Environment and Electrical Engineering; Vol 2, No 1 (2017): Vol 2, No 1 (2017): Regular Issue
eng
https://teee.eu/index.php/TEEE/article/download/74/270
Electrical Engineering
Copyright (c) 2017 Achour Ales, Jean-Luc Schanen, Djelloul Moussaoui, James Roudet
oai:eeeic.org:article/90
2017-09-12T15:49:16Z
TEEE:ART
"170213 2017 eng "
2450-5730
dc
Increasing photovoltaic panel power through water cooling technique
Matias, Calebe Abrenhosa
Federal Institute of Goias (IFG)
Santos, Licínio M.
Experimental and Technological Research and Study Group (NExT),
Federal Institute of Goias (IFG), Goiânia
Alves, Aylton J.
Experimental and Technological Research and Study Group (NExT),
Federal Institute of Goias (IFG), Goiânia
Calixto, Wesley P.
Experimental and Technological Research and Study Group (NExT),
Federal Institute of Goias (IFG), Goiânia.
School of Electrical, Mechanical and Computer Engineering, Federal
University of Goias (UFG), Goiânia.
Array
This paper presents the development of a cooling apparatus using water in a commercial photovoltaic panel in order to analyze the increased efficiency through decreased operating temperature. The system enables the application of reuse water flow, at ambient temperature, on the front surface of PV panel and is composed of an inclined plane support, a perforated aluminum profile and a water gutter. A luminaire was specially developed to simulate the solar radiation over the module under test in a closed room, free from the influence of external climatic conditions, to carry out the repetition of the experiment in controlled situations. The panel was submitted to different rates of water flow. The best water flow rate was of 0.6 L/min and net energy of 77.41Wh. Gain of 22.69% compared to the panel without the cooling system.
EEEIC International Publishing
2016-12-19 20:33:59
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/90
Transactions on Environment and Electrical Engineering; Vol 2, No 1 (2017): Vol 2, No 1 (2017): Regular Issue
eng
Renewable Energy; Photovoltaic
Copyright (c) 2017 Calebe Abrenhosa Matias, Licínio M. Santos, Aylton J. Alves, Wesley P. Calixto
oai:eeeic.org:article/80
2017-09-12T15:49:15Z
TEEE:ART
"170224 2017 eng "
2450-5730
dc
Metric for Calculation of System Complexity based on its Connections
Paiva, João Ricardo Braga de
Federal Institute of Goias / Federal University of Goiás
Gomes, Viviane Margarida
Rodrigues, Bernardo Araújo
Silva, Lais Fernanda Araújo
Aniceto, Bruno Cesar Maioli
Furriel, Geovanne Pereira
Calixto, Wesley Pacheco
Array
This paper proposes a methodology based on system connections to calculate its complexity. Two study cases are proposed: the dining Chinese philosophers’ problem and the distribution center. Both studies are modeled using the theory of Discrete Event Systems and simulations in different contexts were performed in order to measure their complexities. The obtained results present i) the static complexity as a limiting factor for the dynamic complexity, ii) the lowest cost in terms of complexity for each unit of measure of the system performance and iii) the output sensitivity to the input parameters. The associated complexity and performance measures aggregate knowledge about the system.
EEEIC International Publishing
2016-12-19 20:33:59
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/80
Transactions on Environment and Electrical Engineering; Vol 2, No 1 (2017): Vol 2, No 1 (2017): Regular Issue
eng
https://teee.eu/index.php/TEEE/article/download/80/295
Copyright (c) 2017 João Ricardo Braga de Paiva, Viviane Margarida Gomes, Bernardo Araújo Rodrigues, Lais Fernanda Araújo Silva, Bruno Cesar Maioli Aniceto, Geovanne Pereira Furriel, Wesley Pacheco Calixto
oai:eeeic.org:article/89
2017-09-12T15:49:16Z
TEEE:ART
"170303 2017 eng "
2450-5730
dc
Calculation of the influence of slot geometry on the magnetic flux density of the air gap
Lima, Rodrigo Alves de
Federal Institute of Goias, IFG and Federal University of Goias, UFG.
Coimbra, A. C. Paulo
Institute of Systems and Robotics, ISR of Coimbra University, UC
Almeida, Tony
Institute of Systems and Robotics, ISR of Coimbra University, UC
Gomes, Viviane Margarida
Federal Institute of Goias, IFG and Federal University of Goias, UFG.
Pereira, Thiago Martins
Federal Institute of Goias, IFG and Federal University of Goias, UFG.
Alves, Aylton J.
Federal Institute of Goias, IFG and Federal University of Goias, UFG.
Calixto, Wesley Pacheco
Federal Institute of Goias, IFG and Federal University of Goias, UFG.
Array
The objective of this work is to investigate the influence of slotted air gap constructive parameters on magnetic flux density of rotating machines. For this purpose, different approaches were used to solve the air gap field diagram using finite element method and the magnetic field distribution uniformity was evaluated by Carter's factor calculation on two-dimensional and three-dimensional models. Sensitivity analysis of slot constructive parameters was performed and results show that slot geometry modifies the magnetic flux on air gap and shifts the air gap magnetic equipotential midline of double slotted machines. Finally, minimization of Carter’s factor on two-dimensional model presents an optimized slot geometry with a near uniform magnetic flux density distribution.
EEEIC International Publishing
2016-12-19 20:33:59
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/89
Transactions on Environment and Electrical Engineering; Vol 2, No 1 (2017): Vol 2, No 1 (2017): Regular Issue
eng
https://teee.eu/index.php/TEEE/article/download/89/343
Electrical Engineering; electromagnetic devices; finite element analysis
Copyright (c) 2017 Rodrigo Alves de Lima, A. C. Paulo Coimbra, Tony Almeida, Viviane Margarida Gomes, Thiago Martins Pereira, Aylton J. Alves, Wesley Pacheco Calixto
oai:eeeic.org:article/91
2017-09-12T15:49:16Z
TEEE:ART
"170314 2017 eng "
2450-5730
dc
Efficiency Improvement of Switched Reluctance Generator Using Optimization Techniques
Reis, Márcio Rodrigues da Cunha
Federal Institute of Goias
de Araújo, Wanderson Rainer Hilário
Calixto, Wesley Pacheco
Experimental & Technological Research and Study Group (NExT), Federal Institute of Goias (IFG), Goiania, Goias State
Array
This article introduces the switched reluctance machine operating as a generator. This kind of electrical machine delivers CC power at the output and the energy generated can be controlled through several variables. In this work, the switching angles of the machine's power converter are optimized using deterministic and heuristic techniques so that the output power is kept constant via PI controller while guaranteeing maximum value for machine performance, even for different excitation values and mechanical power on the shaft.
EEEIC International Publishing
2016-12-19 20:33:59
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/91
Transactions on Environment and Electrical Engineering; Vol 2, No 1 (2017): Vol 2, No 1 (2017): Regular Issue
eng
Electrical Machines
Copyright (c) 2017 Márcio Rodrigues da Cunha Reis, Wanderson Rainer Hilário de Araújo, Wesley Pacheco Calixto
oai:eeeic.org:article/87
2017-09-12T15:49:16Z
TEEE:ART
"170408 2017 eng "
2450-5730
dc
Close Approaches of Debris to LARES Satellite During Its First Four Years of Operation
Paris, Claudio
Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, and School of Aerospace Engineering - Sapienza University of Rome http://orcid.org/0000-0003-3137-1456
Sindoni, Giampiero
Scuola di Ingegneria Aerospaziale, Sapienza University of Rome and Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi
di Sabato, Tommaso
Università del Salento
Array
Since its launch in February 2012, the LAser RElativity Satellite (LARES) of the Italian Space Agency experienced four close approaches with space debris. LARES orbits at an altitude of 1450 km, in a region where the density of space debris has a peak. However, the probability of an impact with a debris during the operational life of the satellite was reasonably low. The analysis of the close approaches identified three of the objects, that are from two peculiar population of objects. This paper discusses the problem of space debris in low orbit, the approaches occurred with LARES, and some possible scenarios related to space regulations and space law in case of an impact.
EEEIC International Publishing
2016-12-19 20:33:59
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/87
Transactions on Environment and Electrical Engineering; Vol 2, No 1 (2017): Vol 2, No 1 (2017): Regular Issue
eng
Aerospace Engineering; Space Environment
Copyright (c) 2017 Claudio Paris, Giampiero Sindoni, Tommaso di Sabato
oai:eeeic.org:article/92
2021-06-27T16:02:14Z
TEEE:ART
"170627 2017 eng "
2450-5730
dc
Estimate of Geopressures using Conformal Mapping in Eccentrical Wellbores
Silva, Uyara Ferreira
Federal Institute of Goiás,
Federal University of Goiás http://orcid.org/0000-0003-1729-3690
Lemos, Santiago
Federal University of Goiás
de Queiroz Júnior, Manoel Ivany
Federal Institute of Goiás,
Calixto, Wesley Pacheco
Federal Institute of Goiás,
Federal University of Goiás
Segatti, Nikholas
Federal Institute of Goiás.
Furriel, Geovanne Pereira
Silva, Alan Henrique Ferreira
Array
The purpose of this work is to calculate Surge and Swab pressure in oil wells with eccentricity between drill string and wellbore or casing string. Analysis of this phenomenon, in which the fluid is confined between two eccentric cylinders, are made. The conformal mapping is used to lead the eccentric domain into the concentric domain, since the usual models correspond to concentric geometries. The results of this study, using the proposed methodology, are presented and discussed.
EEEIC International Publishing
2017-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/92
Transactions on Environment and Electrical Engineering; Vol 2, No 2 (2017): Special Issue 17th International Conference on Environment and Electrical Engineering
eng
Copyright (c) 2017 Uyara Ferreira Silva, Santiago Lemos, Manoel Ivany de Queiroz Júnior, Wesley Pacheco Calixto, Nikholas Segatti, Geovanne Pereira Furriel, Alan Henrique Ferreira Silva
oai:eeeic.org:article/95
2021-06-27T16:02:14Z
TEEE:ART
"170627 2017 eng "
2450-5730
dc
Calculation of Grounding Grids Parameter at Arbitrary Geometry
Silva, Carlos L. B.
Federal University of Goias
Pires, Thyago G.
Federal University of Goias
Calixto, Wesley P.
Federal University of Goias
Oliveira, Diogo N.
Federal University of Goias
Souza, Luis A. P.
Federal University of Goias
Silva Filho, Antonio M.
Federal University of Goias
Array
This paper deals with the computation of ground resistance, surface voltage, touch voltage and step voltage, to mesh with horizontal wires arranged in different angles. The computer program implemented used in the mathematical modeling is based on the method proposed by Heppe, which allows obtaining the grounding parameters for homogeneous soil and soil stratified in two layers. The results obtained with the proposed method will be compared with other methods in literature. Also will be presented the results of a grounding grid using wires at various angles.
EEEIC International Publishing
2017-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/95
Transactions on Environment and Electrical Engineering; Vol 2, No 2 (2017): Special Issue 17th International Conference on Environment and Electrical Engineering
eng
Copyright (c) 2017 Carlos L. B. Silva, Thyago G. Pires, Wesley P. Calixto, Diogo N. Oliveira, Luis A. P. Souza, Antonio M. Silva Filho
oai:eeeic.org:article/147
2024-02-29T14:36:15Z
TEEE:ART
"240229 2024 eng "
2450-5730
dc
Design of a Resonant Point-Multipoint Wireless Power Transmission System
Resende, Úrsula do Carmo
Centro Federal de educação Tecnológica de Minas Gerais http://orcid.org/0000-0003-0215-652X
Mello, Thiago Henrique Gonçalves
Centro Federal de Educação Tecnológica de Minas Gerais http://orcid.org/0000-0002-8127-274X
Array
With the exponential growth of IoT (Internet of Things), Industry 4.0, and electrical vehicles, there is a growing need for flexible energy sources. Wireless energy transfer is becoming increasingly important in this context, as it enables physical devices to be more flexible and allows for the simultaneous powering of multiple loads. This study presents a wireless energy transfer system that uses solenoid coils in inductive resonant mode. The system is configured in a point multipoint setup, with a circular transmitter coil and two identical circular receiver coils placed inside the transmitter. We use mathematical modeling to develop circuit theory models and identify the most efficient topology for the system. In addition, we propose a simple and cost-effective self-oscillating electronic converter design with two switches for system supply. Our numerical and experimental results demonstrate that the proposed system is viable and functional, achieving a power output of 1.7 W and efficiency of 27%.
EEEIC International Publishing
2024-02-29 13:53:52
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/147
Transactions on Environment and Electrical Engineering; Vol 6, No 1 (2024): Regular Issue 2024
eng
Electrical Engineering
Copyright (c) 2024 Úrsula do Carmo Resende, Thiago Henrique Gonçalves Mello
oai:eeeic.org:article/98
2021-06-27T16:02:14Z
TEEE:ART
"170628 2017 eng "
2450-5730
dc
Hybrid Optimization Process Applied to Tuning of Dynamic Matrix Control: Study Case with DC Motor
de Carvalho, Douglas Freire
Federal University of Goiás;
Experimental & Technological Research and Study Group (NExT). http://lattes.cnpq.br/1110330656158941 http://orcid.org/0000-0003-0944-8752
Ganzaroli, Cleber Asmar
Federal University of Goiás;
Experimental & Technological Research and Study Group (NExT). http://lattes.cnpq.br/7006345437314171
do Couto, Luiz Alberto
Federal University of Goiás;
Experimental & Technological Research and Study Group (NExT). http://lattes.cnpq.br/9332652049796919
Dias, Rafael Nunes Hidalgo Monteiro
Federal University of Goiás;
Experimental & Technological Research and Study Group (NExT). http://lattes.cnpq.br/3351491698508527
Calixto, Wesley Pacheco
Federal University of Goiás;
Experimental & Technological Research and Study Group (NExT). http://lattes.cnpq.br/9073478192027867
Array
This paper presents study about Dynamic Matrix Control (DMC) controller applied to speed control of DC motor. DMC controller parameters (prediction horizon, control horizon and damping rate of reference) are obtained through optimization methods employing heuristic, deterministic and hybrid strategies. The use of advanced control technique combined with using of optimization methods aims to achieve highly efficient control, reducing the transient state period and variations in steady state. These methods were applied on a simulation model in order to verify which one provides better control results.
Index Terms—Predictive Control, Deterministic Optimization, Heuristic Optimization, Hybrid Optimization, DC motor.
EEEIC International Publishing
2017-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/98
Transactions on Environment and Electrical Engineering; Vol 2, No 2 (2017): Special Issue 17th International Conference on Environment and Electrical Engineering
eng
Predictive Control; Deterministic Optimization; Heuristic Optimization; Hybrid Optimization; DC motor.
Copyright (c) 2017 Douglas Freire de Carvalho, Cleber Asmar Ganzaroli, Luiz Alberto do Couto, Rafael Nunes Hidalgo Monteiro Dias, Wesley Pacheco Calixto
oai:eeeic.org:article/99
2021-06-27T16:02:15Z
TEEE:ART
"170705 2017 eng "
2450-5730
dc
Analysis and monitoring of electrical grounding grid encapsulated with concrete: case study using simulation in finite element method
Pereira, Thiago Martins
Federal Institute of Goiás
Federal University of Goiás
Lima, Rodrigo Alves
Federal Institute of Goiás
Federal University of Goiás
Gomes, Viviane Margarida
Federal Institute of Goiás
Federal University of Goiás
Calixto, Wesley Pacheco
Federal Institute of Goiás
Federal University of Goiás
Alves, Aylton José
Federal Institute of Goiás
Federal University of Goiás
Array
This work study the influence of concrete, plaster, clay and others buried structures in grounding systems. Comparison of soil characteristics between dry and rainy seasons on different grounding systems. The study includes comparison of six different grounding system on dry season and wet season. Simulations in finite element method was performed for tree layer stratified soil and the electrostatic equipotential surfaces were mapped into the region of interest.
EEEIC International Publishing
2017-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/99
Transactions on Environment and Electrical Engineering; Vol 2, No 2 (2017): Special Issue 17th International Conference on Environment and Electrical Engineering
eng
Electrical Engineering
Copyright (c) 2017 Thiago Martins Pereira, Rodrigo Alves Lima, Viviane Margarida Gomes, Wesley Pacheco Calixto, Aylton José Alves
oai:eeeic.org:article/85
2021-06-27T16:02:13Z
TEEE:ART
"170705 2017 eng "
2450-5730
dc
Geoelectric method applied in correlation between physical characteristics and electrical properties of the soil
Silva Filho, Antonio Marcelino
Federal University of Goias
Silva, Carlos Leandro Borges
Federal University of Goias
Oliveira, Marco Antonio Assfalk
Federal University of Goias
Pires, Thyago Gumeratto
Federal University of Goias
Alves, Aylton José
Federal Institute of Goias
Calixto, Wesley Pacheco
Federal Institute of Goias
Narciso, Marcelo Gonçalves
Brazilian Agricultural Research Corporation Ministry of Agriculture
Array
This paper presents the study of the relationship between electrical properties and physical characteristics of the soil. Measures of apparent electrical resistivity of the soil were made for different types of soil, varying moisture content gradually while maintaining a constant compaction, and then varying the compaction and relating it to a constant humidity. Development of a correlation surface is proposed in order to identify granulometry of the soil from moisture and compaction measurements. For the study of spatial variability, two areas were chosen to allow the change of moisture content and compaction in order to verify the measurement capacity of apparent electrical resistivity of the soil as methodology to identify change in soil dynamics. Results obtained show correlations among apparent electrical resistivity of the soil, moisture, soil compaction and clay content.
EEEIC International Publishing
2017-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/85
Transactions on Environment and Electrical Engineering; Vol 2, No 2 (2017): Special Issue 17th International Conference on Environment and Electrical Engineering
eng
https://teee.eu/index.php/TEEE/article/download/85/333
Electrical Engineering; Precision Agriculture.
Copyright (c) 2017 Antonio Marcelino Silva Filho, Carlos Leandro Borges Silva, Marco Antonio Assfalk Oliveira, Thyago Gumeratto Pires, Aylton José Alves, Wesley Pacheco Calixto, Marcelo Gonçalves Narciso
oai:eeeic.org:article/93
2021-06-27T16:02:14Z
TEEE:ART
"170705 2017 eng "
2450-5730
dc
Simulation and analysis of an isolated full-bridge DC/DC boost converter operating with a modified perturb and observe maximum power point tracking algorithm
Matias, Calebe A.
Experimental and Technological Research and Study Group (NExT)
Federal Institute of Goias (IFG), Goiânia
Medeiros, Girodani Pacífico
Federal Institute of Goiás (IFG)
Moraes, Pedro H. F.
Experimental and Technological Research and Study Group (NExT)
Federal Institute of Goias (IFG), Goiânia
Fernandes, Bruno de A.
Experimental and Technological Research and Study Group (NExT)
Federal Institute of Goias (IFG), Goiânia
Alves, Aylton J.
Experimental and Technological Research and Study Group (NExT)
Federal Institute of Goias (IFG), Goiânia
Calixto, Wesley P.
School of Electrical, Mechanical and Computer Engineering
Federal University of Goiás (UFG), Goiânia
Furriel, Geovanne P.
School of Electrical, Mechanical and Computer Engineering
Federal University of Goiás (UFG), Goiânia http://orcid.org/0000-0002-8510-1024
Array
The purpose of the present study is to simulate and analyze an isolated full-bridge DC/DC boost converter, for photovoltaic panels, running a modified perturb and observe maximum power point tracking method. The zero voltage switching technique was used in order to minimize the losses of the converter for a wide range of solar operation. The efficiency of the power transfer is higher than 90% for large solar operating points. The panel enhancement due to the maximum power point tracking algorithm is 5.06%.
EEEIC International Publishing
2017-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/93
Transactions on Environment and Electrical Engineering; Vol 2, No 2 (2017): Special Issue 17th International Conference on Environment and Electrical Engineering
eng
Copyright (c) 2017 Calebe A. Matias, Girodani Pacífico Medeiros, Pedro H. F. Moraes, Bruno de A. Fernandes, Aylton J. Alves, Wesley P. Calixto, Geovanne P. Furriel
oai:eeeic.org:article/105
2021-06-27T16:02:15Z
TEEE:ART
"170706 2017 eng "
2450-5730
dc
Proposal of heuristic regression method applied in descriptive data analysis: case studies
Gomes, Flávio Adalberto
Federal Institute of Goiás and Federal University of Goiás
de O. Assis, Alfredo
Federal Institute of Goiás and Federal University of Goiás
R. da C. Reis, Marcio
Federal Institute of Goiás and Federal University of Goiás
M. Gomes, Viviane
Federal Institute of Goiás and Federal University of Goiás
G. M. Oliveira, Sostenes
Federal Institute of Goiás and Federal University of Goiás
R. H. de Araujo, Wanderson
Federal Institute of Goiás and Federal University of Goiás
P. Calixto, Wesley
Federal Institute of Goiás and Federal University of Goiás
Array
The purpose of this paper is to use the hybridized optimization method in order to find mathematical structures for analysis of experimental data. The heuristic optimization method will be hybridized with deterministic optimization method in order to that structures found require not knowledge about data generated experimentally. Five case studies are proposed and discussed to validate the results. The proposed method has viable solution for the analysis of experimental data and extrapolation, with mathematical expression reduced.
EEEIC International Publishing
2017-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/105
Transactions on Environment and Electrical Engineering; Vol 2, No 2 (2017): Special Issue 17th International Conference on Environment and Electrical Engineering
eng
Computer Engineering
Copyright (c) 2017 Flávio Adalberto Gomes, Alfredo de O. Assis, Marcio R. da C. Reis, Viviane M. Gomes, Sostenes G. M. Oliveira, Wanderson R. H. de Araujo, Wesley P. Calixto
oai:eeeic.org:article/112
2021-06-27T16:02:15Z
TEEE:ART
"170721 2017 eng "
2450-5730
dc
Agilometer: An Effective Implementation of Internet of Things for Agile Demand Response
Babar, Muhammad
(1) Eindhoven University of Technology, Eindhoven, The Netherlands.
(2) AGH University of Science and Technology, Krakow, Poland. http://orcid.org/0000-0002-1008-5250
Grela, J.
Faculty of Electrical Engineering, Automatics, Computer Science and Biomedical Engineering
AGH University of Science and Technology, Krakow,
Ozadowicz, A.
Faculty of Electrical Engineering, Automatics, Computer Science and Biomedical Engineering
AGH University of Science and Technology, Krakow,
Nguyen, P.H.
Electrical Energy Systems Group, Department of Electrical Engineering,
Eindhoven University of Technology, Eindhoven
Hanzelka, Z.
Faculty of Electrical Engineering, Automatics, Computer Science and Biomedical Engineering
AGH University of Science and Technology, Krakow
Kamphuis, I.G.
Electrical Energy Systems Group, Department of Electrical Engineering,
Eindhoven University of Technology, Eindhoven
Array
Transactive based control mechanism (TCM) needs the IoT environment to fully explore flexibility potential from the end-users to offer to involved actors of the smart energy system. On the other hand, many IoT based energy management systems are already available to a market. This paper presents an ap-proach to connect the current demand-driven (top-down) energy management system (EMS) with a market-driven (bottom-up) demand response program. To this end, this paper considers multi-agent system (MAS) to realize the approach and introduces the concept and standardize design of Agilometer. It is described as an elemental agent of the approach. Proposed by authors Agilometer consists of three different functional blocks, which are formulated as an IoT platform according to the LonWorks standard. Moreover, the paper also performs an evaluation study in order to validate the proposed concept and design.
EEEIC International Publishing
2017-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/112
Transactions on Environment and Electrical Engineering; Vol 2, No 2 (2017): Special Issue 17th International Conference on Environment and Electrical Engineering
eng
Electrical Engineering
Copyright (c) 2017 Muhammad Babar, J. Grela, A. Ozadowicz, P.H. Nguyen, Z. Hanzelka, I.G. Kamphuis
oai:eeeic.org:article/113
2021-06-27T16:02:15Z
TEEE:ART
"170820 2017 eng "
2450-5730
dc
Housing Development Building Management System (HDBMS) For Optimized Electricity Bills
Li, Weixian
School of Electrical and Electronic Engineering, Newcastle University, Singapore Campus http://orcid.org/0000-0001-8194-1475
Logenthiran, Thillainathan
School of Electrical and Electronic Engineering, Newcastle University, Singapore Campus
Phan, Van-Tung
School of Electrical and Electronic Engineering, Newcastle University, Singapore Campus
Lok Woo, Wai
School of Electrical and Electronic Engineering, Newcastle University, Singapore Campus
Array
Smart Buildings is a modern building that allows residents to have sustainable comfort with high efficiency of electricity usage. These objectives could be achieved by applying appropriate, capable optimization algorithms and techniques. This paper presents a Housing Development Building Management System (HDBMS) strategy inspired by Building Energy Management System (BEMS) concept that will integrate with smart buildings using Supply Side Management (SSM) and Demand Side Management (DSM) System. HDBMS is a Multi-Agent System (MAS) based decentralized decision making system proposed by various authors. MAS based HDBMS was created using JAVA on a IEEE FIPA compliant multi-agent platform named JADE. It allows agents to communicate, interact and negotiate with energy supply and demand of the smart buildings to provide the optimal energy usage and minimal electricity costs. This results in reducing the load of the power distribution system in smart buildings which simulation studies has shown the potential of proposed HDBMS strategy to provide the optimal solution for smart building energy management.
EEEIC International Publishing
2017-06-25 00:00:00
Peer-reviewed Article
application/pdf
https://teee.eu/index.php/TEEE/article/view/113
Transactions on Environment and Electrical Engineering; Vol 2, No 2 (2017): Special Issue 17th International Conference on Environment and Electrical Engineering
eng
Energy management system
Copyright (c) 2017 Weixian Li, Thillainathan Logenthiran, Van-Tung Phan, Wai Lok Woo