Application Of Optical Current Sensors in Electric Substations

Published by Ilham RAHIMLI1, Aliashraf BAKHTIYAROV2, Gulshan ABDULLAYEVA3, Sona RZAYEVA4. Azerbaijan State Oil and Industry University ORCID: 1. 0009-0006-1976-4475; 3. 0000-0003-0168-9623; 4. 0000-0001-7086-9519 Abstract. Despite the fact that current transformers have been used for many years in certain sections of the electrical network, in power supply, to power the circuits of an electrical measuring installation,Continue reading “Application Of Optical Current Sensors in Electric Substations”

Optimization of Field Upgrades of MV Power Lines using Evolutionary Algorithms

Published by Wojciech NITA1, Sylwester FILIPIAK2, PGE Dystrybucja S.A. Oddział Skarżysko-Kamienna (1), Politechnika Świętokrzyska (2) Abstract. This article elaborates on and supplements the research presented in earlier works [19,20,21] on planning for upgrading field MV power grids. While that study developed models for optimizing failure rates (SAIFI, SAIDI, MAIFI) for large areas of the grid,Continue reading “Optimization of Field Upgrades of MV Power Lines using Evolutionary Algorithms”

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”

Comparative Analysis of the Indicators that Concern Power Supply Interruptions for Electricity Consumers for the Selected Distribution System

Published by Małgorzata ŁATKA, Marek NOWAK, Rzeszow University of Technology Abstract. The article presents the results of a comparative analysis of the basic indicators characterizing the interruptions in the supply of electricity. On the basis of generally available reports of selected DSOs, a list of selected indicators was prepared over the years. A comparison ofContinue reading “Comparative Analysis of the Indicators that Concern Power Supply Interruptions for Electricity Consumers for the Selected Distribution System”

Detection of Fault Events in Medium Voltage Grid Based on Analysis of Data from Fault Recorders

Published by Dariusz SAJEWICZ1, Augustyn WÓJCIK2, Piotr ZEGADLO3,Bialystok University of Technology (1), Warsaw University of Technology (2), Kozminski University (3)ORCID: 1.0000-0002-3488-5674; 2.0000-0003-0597-1634; 3.0000-0002-0219-297X Abstract. The aim of this paper is to demonstrate the effectiveness of newly developed fault detection methods based on a simple statistical approach encompassing linear discriminant analysis and signal processing. Fault predictionContinue reading “Detection of Fault Events in Medium Voltage Grid Based on Analysis of Data from Fault Recorders”

An Analysis of Power Supply Reliability Indexes in the Selected Distribution Company

Published by Zbigniew ŁUKASIK, Jacek KOZYRA, Aldona KUŚMIŃSKA-FIJAŁKOWSKA,Uniwersytet Technologiczno-Humanistyczny w Radomiu, Wydział Transportu i Elektrotechniki Abstract. The main goal of this article was to present the problem of discontinuity of energy supply and methods applied by selected distribution company in order to improve power supply reliability indexes. An analysis of discontinuity of supply was basedContinue reading “An Analysis of Power Supply Reliability Indexes in the Selected Distribution Company”

The use of Power Restoration Systems for Automation of Medium Voltage Distribution Grid

Published by Michał KONARSKI, Paweł WĘGIEREK, Lublin University of Technology, Faculty of Electrical Engineering and Computer Science, Lublin, Poland Abstract. The article presents assumptions, characteristics and conclusions of functional tests of a pilot implementation of a power restoration system in one of the Distribution System Operators. The main objective of conducted and described tests wasContinue reading “The use of Power Restoration Systems for Automation of Medium Voltage Distribution Grid”

Influence of Distributed Generation on Sectionalizing Switches Placement in MV Distribution Networks

Published by Wojciech BĄCHOREK1, Mariusz BENESZ1, AGH University of Science and Technology (1) Abstract. This paper presents the influence of distributed generation DG and reclosers placement on the reliability of distribution network. The brute force method and evolutionary algorithm were used to solve the optimization task. The placement of the switches was determined independently usingContinue reading “Influence of Distributed Generation on Sectionalizing Switches Placement in MV Distribution Networks”

Monitoring of Low Voltage Grids with the use of SAIDI Indexes

Published by Zbigniew ŁUKASIK1, Jacek KOZYRA1, Aldona KUŚMIŃSKA-FIJAŁKOWSKA1Uniwersytet Technologiczno-Humanistyczny w Radomiu, Wydział Transportu i Elektrotechniki (1) Abstract. A new method of established and justified level of operational costs for distribution network operators in a new model of regulation in force in the years 2016 – 2020 is described in this article. The changes made inContinue reading “Monitoring of Low Voltage Grids with the use of SAIDI Indexes”