An Application of Facility Location Problem for Electricity Supply Cost Minimization at the Stage of Preliminary High Voltage Network Development Planning

Published by Piotr KAPLER, Warsaw University of Technology, Faculty of Electrical Engineering, Power Engineering Institute Abstract. The article deals with minimizing the costs of electricity supply at the preliminary network planning stage. It presents selected information on costs in power engineering. The facility location problem and Mixed-Integer Linear Programming has been also described. A computationalContinue reading “An Application of Facility Location Problem for Electricity Supply Cost Minimization at the Stage of Preliminary High Voltage Network Development Planning”

Effective Implementation of Mitigation Measures against Voltage Collapse in Distribution Power Systems

Published by 1. Ayodeji Olalekan SALAU1, 2. John N. NWEKE2, 3. Uche C. OGBUEFI3,Department of Electrical/Electronics and Computer Engineering, Afe Babalola University Ado-Ekiti, Nigeria (1), Department of Electrical Engineering Technology, Federal Polytechnic Kaura-Namoda (2), Department of Electrical Engineering, University of Nigeria, Nsukka, Nigeria (3)ORCIOD. 1. 0000-0002-6264-9783, 2. 0000-0002-4996-7197, 3. 0000-0002-3694-0358 Abstract. The frequent problem ofContinue reading “Effective Implementation of Mitigation Measures against Voltage Collapse in Distribution Power Systems”

Investigation of the Line-Reactor Influence on the Active Power Filter and Hybrid Active Power Filter Efficiency: Practical Approach

Published by Chamberlin Stéphane Azebaze Mboving, Andrzej Firlit, AGH University of Science and Technology, Department of Power Electronics and Energy Control Systems Abstract. The shunt active power filter (SAPF) and hybrid active power filter (HAPF) efficiency does not only depends on their designed control system, but also on the parameters of the electrical system inContinue reading “Investigation of the Line-Reactor Influence on the Active Power Filter and Hybrid Active Power Filter Efficiency: Practical Approach”

Influence of the Position of the Electrical Contact on the Size of the Temperature Distribution

Published by Dušan MEDVEĎ1, Ján ZBOJOVSKÝ2, Technical University of Košice. ORCID: 1. 0000-0002-8386-0000; 2. 0000-0003-4383-3996 Abstract. This paper deals with the investigation of temperature field distribution around the high-current electric contact. The analyses of temperature field were realised in simulation environment ANSYS and provide better understanding why the electrical contact position influences the heat dissipation.Continue reading “Influence of the Position of the Electrical Contact on the Size of the Temperature Distribution”

Loss of Energy in Electrical Networks with Capacitor Banks under Optimal Reactive Power Control

Published by Stanilav S. Girshin1, Aleksandr AY. Bigun1, Nikolay А. Mel’nikov1, Elena V. Petrova1, Vladislav M. Trotsenko1, Dmitry S. Osipov2, Vladimir N. Goryunov1, Omsk State Technical University (1), Yugra State University (2) Russian Federation Abstract. One of the key indicators of the energy efficiency of electrical power systems should include the level of electric powerContinue reading “Loss of Energy in Electrical Networks with Capacitor Banks under Optimal Reactive Power Control”

Analysis of the Impact of a Wind Farm on the Quality of Electricity in the Distribution Grid

Published by Joanna KOZIEŁ, Grzegorz KOMARZYNIEC, Andrzej WAC-WŁODARCZYK, Ryszard GOLEMAN, Department of Electrical Engineering and Electrotechnologies, Lublin University of Technology Abstract. The article presents the characteristics of the net power of a wind farm as a function of wind speed, and lists the factors determining the selection of a wind farm. Classification of large windContinue reading “Analysis of the Impact of a Wind Farm on the Quality of Electricity in the Distribution Grid”

Impedance-Differential Relay as a Transmission Line Fault Locator

Published by Justyna HERLENDER, Jan IŻYKOWSKI, Eugeniusz ROSOŁOWSKI, Wroclaw University of Science and Technology, Department of Electrical Power Engineering Abstract. This paper deals with analysis of impedance-differential protection applied to locating faults on power transmission line. Based on the voltage and current measurements at both line ends, the differential impedance is calculated. It enables toContinue reading “Impedance-Differential Relay as a Transmission Line Fault Locator”

Excitation Type and Results of Simulated Electric Field Distribution in MV Cable Termination

Published by Maciej CIUBA1, Michał WOJCIECHOWSKI1, Maciej OWSIŃSKI2, Michał BORECKI1,Warsaw University of Technology, Koszykowa 75, 00-662 Warszawa, Poland (1)Institute of Power Engineering – Research Institute, Mory 8, 01-330 Warszawa, Poland (2) Abstract. The presented article discusses the differences in the results of the electric field simulation in a medium voltage heat-shrinkable cable termination with theContinue reading “Excitation Type and Results of Simulated Electric Field Distribution in MV Cable Termination”

Influence of Dispersed Generation on Reliability of Electric Network

Published by Juliya MALOGULKO, Svyatoslav VYSHNEVSKY , Iryna KOTYLKO, Natalia SOBCHUK, Vinnitsa National Technical University Abstract. The article analyzes the pace of increase in the generation of photovoltaic stations in the context of the combined electricity system of Ukraine and the energy supply company of PJSC “Vinnytsyaoblenergo”. An analysis of existing regulatory documents regulating theContinue reading “Influence of Dispersed Generation on Reliability of Electric Network”

Impacts of Fault Diagnosis Schemes on Distribution System Reliability

Published by Shahram Kazemi, Member, IEEE, Matti Lehtonen, and Mahmud Fotuhi-Firuzabad, Senior Member, IEEE.IEEE TRANSACTIONS ON SMART GRID, VOL. 3, NO. 2, JUNE 2012 Abstract—Design and development of fault diagnosis schemes (FDS) for electric power distribution systems are major steps in realizing the self-healing function of a smart distribution grid. The application of the FDSContinue reading “Impacts of Fault Diagnosis Schemes on Distribution System Reliability”