PQBlog

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”

Trends in Electric Vehicle Fast Charging

Published by Rakesh Kumar, EE Power – Technical Articles: Trends in Electric Vehicle Fast Charging, February 02, 2023. Ultra-fast charging methodology, ultra-fast charging station architectures, and improved battery technology are some promising trends for fast-charging electric vehicles. EVs hold the potential for decarbonizing the transportation sector. But the crucial impediment to the adoption of electrified transportationContinue reading “Trends in Electric Vehicle Fast Charging”

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”

The Impact of EVs on the Electric Grid

Published by Harsha Korde, EE Power – News: The Impact of EVs on the Electric Grid, May 14, 2022 With gas prices rising, electric vehicles are becoming more popular, but transportation decarbonization remains a major issue. With gasoline prices rising and the effects of climate change increasingly acute, transportation electrification is gaining steam in countries throughoutContinue reading “The Impact of EVs on the Electric Grid”

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 – IEEE 519-2022

Published by Comsys AB, website: comsys.se, ADF Technology: Power quality – IEEE 519-2022 A commonly used and very important standard is IEEE 519-2022 (previous versions IEEE 519-1992 and IEEE 519-2014). The standard, among other things, puts two requirements on harmonics; and absolute maximum THDU level, and a variable maximum TDD level. All limits are appliedContinue reading “Power Quality – IEEE 519-2022”