Published by Muhammad Najmi Bohari, P.Eng, powerquality.sg THE ABCS OF POWER QUALITY IN SINGAPORE, October 14, 2023. In general, current harmonics contribution from solar PV inverters do not pose much of a power quality problem. Its ITHD is usually small and negligible as compared to a harmonics-producing load such as a variable speed drive (ITHDContinue reading “Harmonics From Solar PV Inverters”
Tag Archives: Harmonics
Power Quality Issues and It’s Mitigation Techniques
Published by Tejashree G. More, Pooja R. Asabe,Prof. Sandeep Chawda, (Department of Electrical Engineering, Bhivarabai Sawant Institude Of Technology and Research(w), Wagholi, Pune, India) ABSTRACT In this paper the main power quality (PQ) problems are presented with there associated causes and consequences. The economic impact associated with PQ are characterized. Also this paper tries toContinue reading “Power Quality Issues and It’s Mitigation Techniques”
Power Quality in the Portuguese Distribution Network
Published by António LEBRE, Fernando BASTIÃO Nuno MELO, Luísa JORGE Pedro VELOSO, António BLANCO, EDP Distribuição – Portugal. Emails: antoniojose.lebrecardoso@edp.pt, nuno.melo@edp.pt, pedro.veloso@edp.pt, fernando.bastiao@edp.pt, luisa.jorge@edp.pt, antonio.blanco@edp.pt ABSTRACT There is an increase in the quantity and in the variety of challenges faced by distribution network operators, concerning to Power Quality (PQ). EDP Distribuição, in Portugal, has beenContinue reading “Power Quality in the Portuguese Distribution Network”
Various and Sundry PQ Ruminations
Published by Bill William Howe, Sr. Program Manager, Power Quality, Electric Power Research Institute (EPRI), USA. Email: BHowe@epri.com Presented at 21st Annual PQSynergyTM International Conference & Exhibition, Sept 18th – 19th 2023. Mövenpick Hotel Sukhumvit 15 Bangkok, Thailand. Website: pqsynergy.com Author: Bill Howe, Sr. Program Manager, Power Quality, Electric Power Research Institute (EPRI), USA. Email: BHowe@epri.com Bill Howe is the Program Manager for PowerContinue reading “Various and Sundry PQ Ruminations”
Proactive PQ: Enabling Analytics and Initial Successes
Published by Bill William Howe, Sr. Program Manager, Power Quality, Electric Power Research Institute (EPRI), USA. Email: BHowe@epri.com Presented at 21st Annual PQSynergyTM International Conference & Exhibition, Sept 18th – 19th 2023. Mövenpick Hotel Sukhumvit 15 Bangkok, Thailand. Website: pqsynergy.com Author: Bill Howe, Sr. Program Manager, Power Quality, Electric Power Research Institute (EPRI), USA. Email: BHowe@epri.comContinue reading “Proactive PQ: Enabling Analytics and Initial Successes”
Effect of Harmonics on Power Transformers: A Practical Demonstration and Analysis
Published by Munther Naif Thiab1, nmunther2@gmail.com, Kaleid waleed abid2, kaleidwaleedabid@gmail.com, Muhideen Abbas Hasan3, muhyabass@gmail.com,1, College of Engineering, University of Anbar, Iraq.2, Renewable Energy Research Center / University of Anbar. Iraq.3, Al-Dour Technical Institute, Northern Technical University, Iraq. Abstract: Voltage and current harmonics arise in the presence of nonlinear loads in the major supply. Moreover, theContinue reading “Effect of Harmonics on Power Transformers: A Practical Demonstration and Analysis”
Selected Aspects of Photovoltaic Power Station Operation in the Power System
Published by Andrzej LANGE1, Marian PASKO2University of Warmia and Mazury, Department of Electrical and Power Engineering, Electronics and Automation (1), Silesian University of Technology, Institute of Electrical Engineering and Computer Science (2) Abstract. This paper presents the results of a five-year study of a 1 MW photovoltaic power station in the Warmia and Mazury Province.Continue reading “Selected Aspects of Photovoltaic Power Station Operation in the Power System”
Mitigating Harmonics in Power Systems
Published by Simon Mugo, EE Power – Technical Articles: Mitigating Harmonics in Power Systems, May 04, 2023. This article will guide engineers in understanding harmonics, causes, types, equations, and sequences and mitigate harmonics effects. Harmonics are fundamental frequency multiples that have existed since the beginning of the 20th Century when engineers and scientists discovered discontinuous loads,Continue reading “Mitigating Harmonics in Power Systems”
Wind Plant IEEE Std. 519 Compliance Evaluation
Published by Electrotek Concepts, Inc., PQSoft Case Study: Wind Plant IEEE Std. 519 Compliance Evaluation, Document ID: PQS1201, Date: January 25, 2012. Abstract: This case study presents the results for a wind plant substation IEEE Std. 519 harmonic measurement compliance evaluation. The wind plant substation supplied 65 wind turbine generators and the power quality monitor wasContinue reading “Wind Plant IEEE Std. 519 Compliance Evaluation”
Transformer Derating
Published by Electrotek Concepts, Inc., PQSoft Case Study: Transformer Derating, Document ID: PQS0324, Date: October 10, 2003. Abstract: A principal effect of harmonic distortion is to increase losses and heating in almost every component in the electric power system. While contributing almost no useful work, harmonic components of voltage and current increase the RMS value ofContinue reading “Transformer Derating”
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