Published by Lauri Kütt, Eero Saarijärvi, Matti Lehtonen, Department of Electrical Engineering Aalto University School of Electrical Engineering, Espoo, Finland. lauri.kutt@aalto.fi, eero.saarijarvi@aalto.fiHeigo Mõlder, Jaan Niitsoo, Department of Electrical Engineering, Tallinn University of Technology Tallinn, Estonia Abstract—For wide use of electric vehicles (EVs), there are different aspects of the electric power system to consider for makingContinue reading “A Review of the Harmonic and Unbalance Effects in Electrical Distribution Networks due to EV Charging”
Author Archives: PQBlog
Measures and Technical Means for Increasing Efficiency and Reliability of Extra High Voltage Transmission Lines
Published by Vladislav KUCHANSKYY1, Paul SATYAM2, Olena RUBANENKO3, Iryna HUNKO4,Institute of Electrodynamics of NAS of Ukraine (1), Kiev, Ukraine University of the West of England (2), Bristol United Kingdom, Regional Innovational Center at the Faculty of Electrical Engineering University of West Bohemia (3), Plzen, Czech Republic, Vinnytsia National Technical University (4), Vinnytsia, Ukraine Abstract. ElectromagneticContinue reading “Measures and Technical Means for Increasing Efficiency and Reliability of Extra High Voltage Transmission Lines”
Negative Sequence Current as a Breaker Failure Protection for Medium Voltage Grids
Published by 1. Tomáš ŠKUMÁT1, 2. Žaneta ELESCHOVÁ2,Západoslovenská distribučná, a. s. (1). Slovak University of Technology in Bratislava (2)ORCID. 2. 0000-0002-7596-108X Abstract. This paper focuses on situations in Medium Voltage (MV) grids where a feeder´s breaker failure occurred. This type of fault is quite severe but well handled in higher voltage systems (high voltage, extraContinue reading “Negative Sequence Current as a Breaker Failure Protection for Medium Voltage Grids”
The Mathematical Model of High Voltage Switch as An Element of a Power System
Published by 1. Andriy CZABAN1, 2. Vitaliy LEVONIUK2, 3. Radosław FIGURA1,Kazimierz Pulaski University of Technology and Humanities in Radom (1), Lviv National Agrarian University (2) ORCID: 1. – 0000-0002-4620-301X; 2. 0000-0003-2113-107X; ; 3. 0000-0001-8048-5623 Abstract. In this work, on the basis of an interdisciplinary method of modelling, a mathematical model of a power system isContinue reading “The Mathematical Model of High Voltage Switch as An Element of a Power System”
Large-Power Synchronous Motor Braking by Field Current
Published by Marian HYLA, Silesian University of Technology, Department of Power Electronics, Electrical Drives and Robotics Abstract. The paper presents the braking process of a large-power salient-pole synchronous motor forced by field current. The motor control was carried out using a microprocessor block for the excitation of large-power synchronous motors. Cases of free retardation andContinue reading “Large-Power Synchronous Motor Braking by Field Current”
Influence of Environmental Exposures on Electrical Parameters of Low Voltage Surge Arresters
Published by Piotr PAJĄK1, Bartłomiej SZAFRANIAK1, Anna DĄDA2, AGH University of Science and Technology, Faculty of Electrical Engineering, Automatics, Computer Science and Biomedical Engineering (1), MGGP S.A., Krakow Branch (2) Abstract. Low voltage surge arresters work in a very different environmental conditions. During the exploitation, under the influence of environmental exposures, the structure of metalContinue reading “Influence of Environmental Exposures on Electrical Parameters of Low Voltage Surge Arresters”
Application of Multi-Stage Window Comparator Circuit with Safety Mode for Swell Voltage Control in Low Voltage Systems
Published by Saktanong WONGCHAROEN, Sansak DEEON, Pathumwan Institute of Technology, Thailand Abstract. This article presents the application of a multi-stage window comparator circuit with safety mode for swell voltage control in low voltage systems that lack stability and electrical quality. High-voltage transistors were used to build a simple voltage detecting circuit with multi-stage functions andContinue reading “Application of Multi-Stage Window Comparator Circuit with Safety Mode for Swell Voltage Control in Low Voltage Systems”
Faults Detection in PMSM Drive using Artificial Neural Network
Published by Konrad URBAŃSKI, Dariusz MAJCHRZAK,Poznań University of Technology Abstract. In this paper, simulation research results of PMSM drive with open phase fault detection are presented. Proposed fault detection system is implemented using two artificial neural networks. One of them is neural model of healthy PMSM and another one generates diagnostic signals. When the faultContinue reading “Faults Detection in PMSM Drive using Artificial Neural Network”
Power Quality — Basics Commercial Buildings
Published by HSB, Power quality — basics Commercial property, One State Street P.O. Box 5024 Hartford, CT 06102-5024 Tel: (800) 472-1866. Website: HSB.com Introduction Power quality is a general term used to describe the compatibility between connected equipment and its electrical supply. The supply system can be affected by changes to the frequency or amplitudeContinue reading “Power Quality — Basics Commercial Buildings”
Storage Electric Multiple Units on Partially Electrified Suburban Railway Lines
Published by Aleksander JAKUBOWSKI1, Natalia KARKOSIŃSKA–BRZOZOWSKA2, Krzysztof KARWOWSKI1, Andrzej WILK1, Gdańsk University of Technology, Faculty of Electrical and Control Engineering (1), Civil and Environmental Engineering (2) Abstract. The paper presents possible environmental, energy and economical gains implied by replacing conventional traction vehicles with independently powered electric multiple units (IPEMU) on partially electrified suburban railways. IPEMUsContinue reading “Storage Electric Multiple Units on Partially Electrified Suburban Railway Lines”
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