Published by Felix KALUNTA1, Tolulope AKINBULIRE2, Frank OKAFOR3, Federal Institute of Industrial Research, Lagos (1), University of Lagos (2,3) Abstract. A hybrid technique for the analysis of series resonance in power network with aggregate harmonic sources is hereby presented. It involves the identification of resonant modes using admittance scan and computation of network currents atContinue reading “Analysis of Series Resonance in Power Distribution Networks with Aggregate Harmonic Sources”
Tag Archives: Harmonics
An Analysis of Power Quality Problems and its Mitigation
Published by Shafqat Mughal, Neeten Sharma, Pankhuri Kishore Abstract—Power Quality is a major concern of our modern industries and other consumers. Poor quality of supply will affect the performance of customer equipment such as computers, microprocessors adjustable speed drives, power electronic devices, life saving equipment in hospitals, etc. and result in heavy financial losses toContinue reading “An Analysis of Power Quality Problems and its Mitigation”
A Case Study of Sharing the Harmonic Voltage Distortion Responsibility between the Utility and the Consumer
Published by F. H. Costa, I. N. Santos, S. F. P. Silva and J. C. de Oliveira, Group of Power Quality Faculty of Electrical Engineering Federal University of Uberlandia Campus Santa Monica – Av. João Naves de Ávila, 2100 Uberlandia (Brazil). Phone/Fax number:+55 (34) 3239-4733, e-mail: fernandahein@hotmail.com, ivan.ufu@gmail.com, sergio@qes.com.br, jcoliveira@ufu.br Abstract. The aim of thisContinue reading “A Case Study of Sharing the Harmonic Voltage Distortion Responsibility between the Utility and the Consumer”
Power System Harmonics
Published by Olutayo Ogunyemi, School of Science and Engineering, Atlantic International University, Honolulu, HI. Abstract – Good power quality is essential in electrical power network. Power quality is not limited to availability of supply but also include steady frequency value and voltage magnitude and smooth waveform characteristics of the supply (Ogheneovo Johnson, 2016).The present situationContinue reading “Power System Harmonics”
A Review of Harmonics Detection and Measurement in Power System
Published by 1. Dnyaneshwar D. Ahire, Professor, Matoshri College of Engineering and Research Centre, Nashik Savitribai Phule Pune University, Nashik, Maharashtra, India.2. Snehal R. Durdhavale Student, Matoshri College of Engineering and Research Centre, Nashik Savitribai Phule Pune University, Nashik, Maharashtra, India. ABSTRACT – A load is said to be “linear” when it draws a currentContinue reading “A Review of Harmonics Detection and Measurement in Power System”
A New Technique to Detect Harmonic Sources in Polluted Power Systems
Published by Pietro Vincenzo Barbaro, Antonio Cataliotti, Valentina Cosentino, Salvatore Nuccio, Dipartimento di Ingegneria Elettrica, Elettronica e delle Telecomunicazioni, Università di Palermo, Palermo, Italy. E-mails: barbaro@diepa.unipa.it, acataliotti@ieee.org, cosentino@diepa.unipa.it, nuccio@unipa.it Abstract: This paper presents a comparative analysis among different nonactive power quantities proposed in literature in nonsinusoidal conditions; with respect to this, a new single-point approachContinue reading “A New Technique to Detect Harmonic Sources in Polluted Power Systems”
High Performance of Multilevel Inverter Reduced Switches for a Photovoltaic System
Published by Laith A. Mohammed1, Taha A. Hussein2, Ahmed T. Sadoon3, Northern Technical University, Engineering Technical College of Mosul, Mosul, Iraq.ORCID: 10000-0002-2882-2845; 2. 0000-0001-9516-6860; 3. 0000-0002-8440-6061 Abstract. In this paper, optimum switching angles are chosen from slime moiled algorithm (SMA), Artificial Bee Colony (ABC), Genetic algorithms (GA), Whale optimization algorithm (WOA), and Gray wolf algorithmContinue reading “High Performance of Multilevel Inverter Reduced Switches for a Photovoltaic System”
An Introduction to Transformer Harmonic Current Derating Metrics
Published by Richard Lam, CHK Power Quality Pty Ltd. Website: http://www.chkpowerquality.com.au Abstract. Transformer harmonic current derating metrics; Harmonic Loss Factor, K-Factor, and Factor K are introduced, and used to calculate derating factors for dry and oil-filled type transformers. Introduction The introduction of Switched Mode Power Supplies (SMPS) in office equipment and LED lighting, Variable Frequency/SpeedContinue reading “An Introduction to Transformer Harmonic Current Derating Metrics”
Problems of the Current State of Power Quality and Proposals for their Solution
Published by Lidiya Kovernikova, Melentiev Energy Systems Institute of the Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russian Federation. Email: kovernikova@isem.irk.ru Abstract. The power quality in Russian electrical networks does not meet the requirements of regulatory documents. Big problems occur in all areas of people’s lives for this reason. Economic damage is oneContinue reading “Problems of the Current State of Power Quality and Proposals for their Solution”
Impact of Harmonics on Power Quality and Losses in Power Distribution Systems
Published by M. Jawad Ghorbani, H. Mokhtari**, Dept. of CSEE, West Virginia University, Morgantown, WV, USA, ** Dept. of EE, Sharif University of Technology, Tehran, Iran. ABSTRACT – This paper investigates the harmonic distortion and losses in power distribution systems due to the dramatic increase of nonlinear loads. This paper tries to determine the amountContinue reading “Impact of Harmonics on Power Quality and Losses in Power Distribution Systems”
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