Published by Joanna KOZIEŁ, Lublin University of Technology, Institute of Electrical Engineering and Electrotechnologies Abstract. The paper presents the classification of superconducting fault current limiters. In particular the principle of construction and operations of superconducting current limiter of transformer type is presented. Functional physical model of such a limiter, designed, manufactured in the Laboratory ofContinue reading “Analysis of the Impact of Secondary Winding Impedance on the Parameters of Transformer Type Superconducting Current Limiters”
Category Archives: Case Studies
Computer Assisted Harmonics Analysis
Published by Prof. Silviu Darie, PhD (EE), Technical University Cluj Napoca, Romania, Honorary Member of the Romanian Technical Sciences Academy. Email: silviu.darie@enm.utcluj.ro. Abstract: Based on the author’s experience one describes in field tested methodologies which can be employed in solving the frequency-based power quality problems. A generic approach is presented and an experience-based assessment isContinue reading “Computer Assisted Harmonics Analysis”
Single Line to Ground-Fault Detection for Unit Generator-Transformer based on Wavelet Transform and Neutral Networks
Published by Ahmad Rizal SULTAN1, Mohd Wazir bin MUSTAFA2, Makmur SAINI3, Ahmad GAFFAR41,3,4 Politeknik Negeri Ujung Pandang, South Sulawesi-Indonesia2Universiti Teknologi Malaysia, Faculty of Electrical Engineering, Johor-Malaysia Abstract. The aim of this paper is to detect the single line to ground fault on the unit generator- transformer. A new ground fault detection scheme based on theContinue reading “Single Line to Ground-Fault Detection for Unit Generator-Transformer based on Wavelet Transform and Neutral Networks”
Charging Infrastructure and Testing of the Electric Vehicle Energy Battery Decline
Published by Anna ZIELIŃSKA, AGH University of Science and Technology Abstract: The article presents the infrastructure for charging electric vehicles, their development and the types and methods of charging. The paper presents the results of testing the level of vehicle charge depending on the route traveled and its dynamics. The test results show the changeContinue reading “Charging Infrastructure and Testing of the Electric Vehicle Energy Battery Decline”
Solar Power Plant with Distributed System of PV Panels
Published by Mariusz ŚWIDERSKI, Michał GWÓŹDŹ, Poznan University of Technolog Abstract. In the work the other approach to a photovoltaic system is presented. With regard to an improvement of reliability of a solar system, maintaining and improving system’s efficiency, authors proposed conception of the distributed PV system. This system consists of a set of individualContinue reading “Solar Power Plant with Distributed System of PV Panels”
Prediction of Electricity Production in Island Operation under the different Wind Generation Modes
Published by Dušan MEDVEĎ1, Zsolt ČONKA1 Marek PAVLIK1, Ján ZBOJOVSKY1,Michal KOLCUN1,Michal IVANČÁK1, Technical University of Košice, Department of Electric Power Engineering, Mäsiarska 74, 04001 Košice, Slovakia (1) Abstract. This paper deals with the prediction of electricity generation in particular part of the network (island operation) where were considered various regimes of the wind power plantContinue reading “Prediction of Electricity Production in Island Operation under the different Wind Generation Modes”
Overvoltage Induced in Overhead Power Lines by nearby Lightning Stroke
Published by Grzegorz MASŁOWSKI, Robert ZIEMBA, Tomasz KOSSOWSKI,Rzeszow University of Technology Abstract. The results of simulations of overvoltages induced in the overhead transmission line, caused by nearby lightning stroke are presented. Calculations were made using the LIOV module implemented in the EMTP-RV program. The influence of the distance of the lightning channel from the lineContinue reading “Overvoltage Induced in Overhead Power Lines by nearby Lightning Stroke”
Noise and Vibration Analysis of a Distribution Transformer
Published by Dániel MARCSA, eCon Engineering Kft., Hungary Abstract. Transformer noise is a significant contribution to unwanted ambient noise, especially in the vicinity of the electrical transmission facility. It is therefore very important to get to know the mechanism of noise generation of the distribution transformer. As outcomes of this work, a finite element basedContinue reading “Noise and Vibration Analysis of a Distribution Transformer”
Reliability of Open Public Electric Vehicle Direct Current Fast Chargers
Published David Rempel1, Carleen Cullen1,2, Mary Matteson Bryan1, Gustavo Vianna Cezar3, 1Department of Bioengineering, University of California, Berkeley, CA, USA2Cool the Earth, Kentfield, CA, USA3SLAC National Accelerator Laboratory, GISMo Group, CA, USA Abstract. In order to achieve a rapid transition to electric vehicle driving, a highly reliable and easy to use charging infrastructure is criticalContinue reading “Reliability of Open Public Electric Vehicle Direct Current Fast Chargers”
Hybrid Switch for Capacitors Bank used in Reactive Power Compensation
Published by Adam RUSZCZYK1, Krzysztof KÓSKA1, Konrad JANISZ2ABB Corporate Research Centre, Poland (1), AGH University of Science and Technology, Poland (2) Abstract. This paper describes new concept of a switch dedicated for control of three-phase capacitor bank used for low voltage, reactive power compensation. The proposed device utilizes fully controlled IGBT transistors that gives possibilityContinue reading “Hybrid Switch for Capacitors Bank used in Reactive Power Compensation”
Power Quality Blog 