Author Archives: PQBlog

General Reference – Power Quality Glossary

Published by Electrotek Concepts, Inc., PQSoft Case Study: General Reference – Power Quality Glossary, Document ID: PQS0305, Date: January 27, 2003. Abstract: The document provides a glossary of terms related to power quality analysis and measurements. POWER QUALITY GLOSSARY Glossary Active Filter:A power electronics-based device configured with controls to provide cancellation of harmonic current components createdContinue reading “General Reference – Power Quality Glossary”

Lifetime and Reliability

Published by U.S. Department of Energy Office of Energy Efficiency & Renewable Energy, Article: Building Technologies Program SOLID-STATE LIGHTING TECHNOLOGY FACT SHEET, Website: ssl.energy.gov Lifetime and Reliability Long life has been billed as a key advantage of LEDs, but understanding and communicating how LED products fail and how long they last can be challenging. WhileContinue reading “Lifetime and Reliability”

Cyber-Physical System Security of a Power Grid: State-of-the-Art

Published by Chih-Che Sun 1, Chen-Ching Liu 1,2 and Jing Xie 1,* 1 School of Electrical Engineering and Computer Science, Washington State University, Pullman, WA 99164,USA; csun@eecs.wsu.edu (C.-C.S.); liu@eecs.wsu.edu (C.-C.L.)2 Visiting Professor, School of Mechanical and Materials Engineering, University College Dublin, Belfield,Dublin 4, Ireland*Correspondence: jxie@eecs.wsu.edu; Tel.: +1-509-339-4246Academic Editors: Alfredo Vaccaro and Jin (Wei) Kocsis AbstractContinue reading “Cyber-Physical System Security of a Power Grid: State-of-the-Art”

How reliable are transformer energy efficiency tests (including Independent 3rd Party) under non-linear loading?

Published by Mirus International Inc., [2010-01-08] MIRUS-FAQ001-B2, FAQ’s Harmonic Mitigating Transformers, 31 Sun Pac Blvd., Brampton, Ontario, Canada. L6S 5P6. It is much more difficult to accurately determine the energy efficiency of a transformer under non-linear loading than it is under linear loading. The industry accepted technique for measuring transformer efficiency under linear load involvesContinue reading “How reliable are transformer energy efficiency tests (including Independent 3rd Party) under non-linear loading?”

Real Time Sustainable Power Quality Analysis of Non-Linear Load under Symmetrical Conditions

Published by Pavan Babu Bandla 1, Indragandhi Vairavasundaram 1, Yuvaraja Teekaraman 2, Ramya Kuppusamy 3 and Srete Nikolovski 4,* 1School of Electrical Engineering, Vellore Institute of Technology, Vellore 632014, India2MOBI-Mobility, Logistics and Automotive Technology Research Centre, Vrije Universiteit Brussel, 1050 Brussels, Belgium3Department of Electrical and Electronics Engineering, Sri Sairam College of Engineering, Bangalore 562106, India4PowerContinue reading “Real Time Sustainable Power Quality Analysis of Non-Linear Load under Symmetrical Conditions”

What constitutes an EPA Energy Star Transformer and is it important when supplying non-linear loads?

Published by Mirus International Inc., [2010-01-08] MIRUS-FAQ001-B2, FAQ’s Harmonic Mitigating Transformers, 31 Sun Pac Blvd., Brampton, Ontario, Canada. L6S 5P6. The Energy Star program is sponsored by the US Environmental Protection Agency (EPA) and is designed to encourage the use of energy efficient products. The Energy Star logo is found on many household appliances andContinue reading “What constitutes an EPA Energy Star Transformer and is it important when supplying non-linear loads?”

Review of Positive and Negative Impacts of Electric Vehicles Charging on Electric Power Systems

Published by Morsy Nour 1,2,*, José Pablo Chaves-Ávila 1 , Gaber Magdy 2 and Álvaro Sánchez-Miralles1 1Institute for Research in Technology (IIT), ICAI School of Engineering, Comillas Pontifical University,28015 Madrid, Spain; jose.chaves@iit.comillas.edu (J.P.C.-Á.); alvaro.sanchez@iit.comillas.edu (Á.S.-M.)2Department of Electrical Engineering, Faculty of Energy Engineering, Aswan University, Aswan 81528, Egypt; gabermagdy@aswu.edu.eg, *Correspondence: morsy.mohammed@iit.comillas.edu Abstract: There is a continuousContinue reading “Review of Positive and Negative Impacts of Electric Vehicles Charging on Electric Power Systems”

Harmonics and Reduction of Energy Consumption in Lighting Systems by Using LED Lamps

Published by Natthanon Phannil, Chaiyan Jettanasen and Atthapol Ngaopitakkul *Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand; Emails: aun_2535_006@hotmail.com (N.P.); chaiyan.je@kmitl.ac.th (C.J.)*Correspondence: atthapol.ng@kmitl.ac.th; Tel.: +66-(0)2-329-8330 Abstract This paper proposes the study and analysis of harmonics, energy consumption and power quality of light emitting diode (LED) lamps equipped in building lighting systems.Continue reading “Harmonics and Reduction of Energy Consumption in Lighting Systems by Using LED Lamps”

Review of Ship Microgrids: System Architectures, Storage Technologies and Power Quality Aspects

Published by Shantha Gamini Jayasinghe1,*, Lasantha Meegahapola2, Nuwantha Fernando2, Zheming Jin3 and Josep M. Guerrero3 1Australian Maritime College, University of Tasmania, Launceston 7250, Australia,2School of Engineering, Royal Melbourne Institute of Technology, Melbourne 3001, Australia; lasantha.meegahapola@rmit.edu.au (L.M.); nuwantha.fernando@rmit.edu.au (N.F.)3Institute of Energy Technology, Aalborg University, Aalborg 9220, Denmark; zhe@et.aau.dk (Z.J.);joz@et.aau.dk (J.M.G.)*Correspondence: shanthaj@utas.edu.au; Tel.: +61-363-249-752 Abstract: Ship microgridsContinue reading “Review of Ship Microgrids: System Architectures, Storage Technologies and Power Quality Aspects”