Regulation of Current Harmonics in Grid with Dead-beat Controlled Shunt Active Power Filter

Published by Parandhaman BALAMURUGAN1, Natarajan SENTHIL KUMAR1,Vellore Institute of Technology (1),Chennai, Tamilnadu, India Abstract. Hardware implementation of Shunt Active Power Filter (SAPF) to regulate harmonics in the grid current is presented in this work. Dead-beat controller is employed to regulate the harmonics injected by SAPF using Spartan-6 FPGA processor. The effectiveness of the control strategyContinue reading “Regulation of Current Harmonics in Grid with Dead-beat Controlled Shunt Active Power Filter”

Methods for Determining Power Losses in Cable Lines with Non-Linear Load

Published by Łukasz TOPOLSKI, Jurij WARECKI, Zbigniew HANZELKA, AGH University of Science and Technology Abstract. Harmonic currents in power cables cause additional power losses associated with phenomena that increase the temperature of the cable insulation and make its service life shorter. For these reasons, it is important to choose methods for determining active power losses,Continue reading “Methods for Determining Power Losses in Cable Lines with Non-Linear Load”

Harmonics in Electrical Power Systems and how to remove them by using filters in ETAP

Published by Zia Hameed1, Muhammad Rafay Khan Sial2, Adnan Yousaf3, Muhammad Usman Hashmi,Faculty of Engineering and Technology, Superior University, 17-km off Raiwind Road Lahore PakistanEmails: zia.hameed@superior.edu.pk, rafay.khan@superior.edu.pk, adnan.yousaf@superior.edu.pk Abstract—Power System Harmonics is a real point of concern for Electrical Engineers. In power systems, non-linear loads are permanently connected, unlike transients and other distortions are produced.Continue reading “Harmonics in Electrical Power Systems and how to remove them by using filters in ETAP”

An Update IEEEE Standard Complements

Published by Sivaraman P, SMIEEE, PEng (India), Senior Power Systems Engineer Chennai, Tamil Nadu, India We all know that Total Harmonic Distortion (THD) and Total Demand Distortion (TDD) are used to evaluate the presence of harmonics in the power system. The “IEEE Std 1547-2018 IEEE Standard for Interconnection and Interoperability of Distributed Energy Resources with AssociatedContinue reading “An Update IEEEE Standard Complements”

Harmonics Produced by Traction Substations – Computer Modelling and Experimental Verification

Published by Robert KOWALAK, Stanislaw CZAPP, Krzysztof DOBRZYNSKI, Jacek KLUCZNIK, Zbigniew LUBOSNY Gdansk, University of Technology, Faculty of Electrical and Control Engineering Abstract. Voltage and current harmonics have a detrimental effect on the components of a power system. Current harmonics may result in the overload and damage to power transformers. Voltage harmonics may result in,Continue reading “Harmonics Produced by Traction Substations – Computer Modelling and Experimental Verification”

Harmonic Mitigation Using Phase-shifting Transformers and Harmonic Filters

Published by Alex Roderick, EE Power – Technical Articles: Harmonic Mitigation Using Phase-shifting Transformers and Harmonic Filters, May 21, 2021. Learn about how minimise the presence of harmonics in an electrical system with harmonic transformers and filters. Three-phase loads do not generate triplen harmonics. Therefore, harmonic problems in situations where 3-phase loads dominate are primarily fromContinue reading “Harmonic Mitigation Using Phase-shifting Transformers and Harmonic Filters”

Wind Farm and System Modelling Evaluation in Harmonic Propagation Studies

Published by G. A. Mendonça1, H. A. Pereira1,2 and S. R. Silva1,1 Graduate Program in Electrical Engineering – Universidade Federal de Minas Gerais Av. Antônio Carlos 6627, 31270-901, Belo Horizonte, MG, Brazil. Phone: +55-31-3409-4842, e-mail: gforti@gmail.com, heverton.pereira@ufv.com.br, selenios@dee.ufmg.br2 Department of Electrical Engineering, Universidade Federal de Viçosa Av. P.H.Rolfs S/N,36570-000, Viçosa, MG, Brazil Abstract. Wind powerContinue reading “Wind Farm and System Modelling Evaluation in Harmonic Propagation 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”

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”