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”
Category Archives: Case Studies
Incheon Airport Maglev Line
Published by Doh-Young PARK1, Jacek F. GIERAS2,3Korea Institute of Machinery and Materials, Daejeon, Korea (1), UTP University of Science and Technology, Bydgoszcz, Poland (2), Korea Electrotechnology Research Institute, Changwon, Korea (3), Abstract. The paper presents the Incheon Airport Maglev Line (IAML) in South Korea connecting Incheon Airport with Yeongjong Island. The paper focuses on constructionContinue reading “Incheon Airport Maglev Line”
Converter-Fed Electric Vehicle (Car) Drives – A Critical Review
Published by Konrad DĄBAŁA1, Marian P. KAZMIERKOWSKI1,2,The Łukasiewicz Research Network – Electrotechnical Institute, Warsaw (1)Warsaw University of Technology, Faculty Electrical Engineering (2) Abstract In this paper the basic requirements and current developments of converter-fed drives for electric vehicles, particularly for electric cars, are reviewed and compared. The basic parts of the powertrain have been presentedContinue reading “Converter-Fed Electric Vehicle (Car) Drives – A Critical Review”
Improvement of Voltage Stability in the HV Distribution Line using an Active Power Filter
Published by Julian WOSIK1, Marcin HABRYCH2, Bogdan MIEDZIŃSKI2, Grzegorz DEBITA3, Andrzej FIRLIT4, Institute of Innovative Technologies EMAG (1), Wroclaw University of Science and Technology (2), General Tadeusz Kosciuszko Military University of Land Forces (3), AGH University of Science and Technology (4) Abstract. The article explains the reason of a voltage instability in distribution networks basingContinue reading “Improvement of Voltage Stability in the HV Distribution Line using an Active Power Filter”
Multi-Servers System with Firebird Database for Automatic Reactive Power Compensation
Published by Marian HYLA, Silesian University of Technology, Department of Power Electronics, Electrical Drives and Robotics Abstract. The paper presents the concept, implementation and operational effects of the multi-servers automatic reactive power compensation system in 6 kV industry electrical power grid. As controlled reactive power compensators were used synchronous motors, capacitors’ banks and passive filtersContinue reading “Multi-Servers System with Firebird Database for Automatic Reactive Power Compensation”
Obtaining Feasibility of Power Flows in the Deregulated Electricity Market Environment
Published by Mariusz DRABECKI, Eugeniusz TOCZYŁOWSKI,Warsaw University of Technology, Institute of Control and Computation Engineering Abstract. In this paper we analyse a power dispatch method for obtaining feasible power flows, both active and reactive power, in terms of satisfying the transmission, voltage level and voltage angles’ constraints, under assumption that supply of electric power isContinue reading “Obtaining Feasibility of Power Flows in the Deregulated Electricity Market Environment”
Global Trends of Photovoltaic Energy Usage
Published by Lucjan KURZAK, Building Construction Faculty Czestochowa University of Technology, Poland Abstract. The market of photovoltaics is one of the most dynamically developing sectors of world economy. From the standpoint of the environment, the energy of solar radiation is the most attractive source. Both new materials and technological solutions, growing effectiveness of conversion ofContinue reading “Global Trends of Photovoltaic Energy Usage”
Voltage withstand Tests and PD Measurements on Cable Accessories with Assembly Mistakes
Published by Maciej OWSIŃSKI1, Paweł KLUGE1, Andrzej ŁASICA2, Przemysław SUL2, Tomasz SALAK2, Bartosz ZAJĄC2, Institute of Power Engineering (1), Warsaw University of Technology (2) Abstract. The paper presents the results of voltage withstand tests and partial discharges measurements made on MV cable accessories made with assembly errors. The tested equipment was subjected to tests developedContinue reading “Voltage withstand Tests and PD Measurements on Cable Accessories with Assembly Mistakes”
Anomalous Leakage Currents on Silicone Rubber Hollow Insulators
Published by Krystian Leonard CHRZAN1, Maciej ZIPP2,Wrocław University of Science and Technology (1), Gates Corporation (2) Abstract. Leakage currents on silicone and porcelain housings were measured at a 110 kV substation (site pollution severity class heavy) for 7 months. Both types of housing had a similar geometry. The current on porcelain housings is usually upContinue reading “Anomalous Leakage Currents on Silicone Rubber Hollow Insulators”
Investigation of Power Saving Modes in 10/0.4 kV Distribution Networks
Published by Oleksandr MIROSHNYK1, Andrzej SZAFRANIEC2, Kharkiv Petro Vasylenko National Technical University of Agriculture (1), Kazimierz Pulaski University of Technology and Humanities in Radom, Faculty of Transport, Electrical Engineering and Computer Science (2) Abstract. Operation modes of 0.4/0.23 kV power supply systems are modelled using Monte Carlo method by means of Electronics Workbench software and statisticalContinue reading “Investigation of Power Saving Modes in 10/0.4 kV Distribution Networks”
Power Quality Blog 