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”
Yearly Archives: 2023
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”
Substation Shielding Methods for Lightning Strikes
Published by Lorenzo Mari, EE Power – Technical Articles: Substation Shielding Methods for Lightning Strikes, December 04, 2020. This article explains different substation shielding techniques used to reduce the chance of and damage from direct lightning strikes. Direct lightning strikes to transmission lines or substations may damage the electrical equipment and threaten any nearby personnel. This article focusesContinue reading “Substation Shielding Methods for Lightning Strikes”
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”
A 3 kV DC Electric Traction System Modernisation for Increased Speed and Trains Power Demand – Problems of Analysis and Synthesis
Published by Adam SZELĄG, Tadeusz MACIOŁEK, Politechnika Warszawska, Instytut Maszyn Elektrycznych Abstract. A 3 kV DC supply system, used on railways in Poland, since 1936, has power delivery capacity that allows reaching by trains a maximum speed of 250 km/h. Currently, the maximum trains service speed on Polish railway is 160 km/h, although speed recordContinue reading “A 3 kV DC Electric Traction System Modernisation for Increased Speed and Trains Power Demand – Problems of Analysis and Synthesis”
Seasonality Effect on Working and Prediction of the Production of Electricity in Onshore Wind Farm
Published by Mateusz DUTKA1, Bogusław ŚWIĄTEK1, AGH University of Science and Technology, Department of Power Electronics and Energy Control Systems (1) Abstract. This paper describes relevant issues of the energy prediction from onshore wind farms. The use of a neural network to forecast wind power production and its resistance to changing seasons is examined. DifferentContinue reading “Seasonality Effect on Working and Prediction of the Production of Electricity in Onshore Wind Farm”
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”
Clean Power for Office Towers
Published by Raghavan Venkatesh, EE Power – Technical Articles: Clean Power for Office Towers, April 12, 2018. This article features EPCOS AG product PQSine S series designed for 3-phase grids with or without neutral conductors and enables harmonics to be filtered. The complex power networks of skyscrapers and other modern buildings must serve a wide rangeContinue reading “Clean Power for Office Towers”
PQ Investigation for SW County School District No. 1 Harmonic Considerations Associated with PC Loads
Published by Electrotek Concepts, Inc., PQSoft Case Study: PQ Investigation for SW County School District No. 1, Document ID: PQS0323, Date: October 10, 2003. Abstract: The County School District has a concern for increasing computer loads at the local High School. There are approximately 300 computers currently in use at the school and plans are toContinue reading “PQ Investigation for SW County School District No. 1 Harmonic Considerations Associated with PC Loads”
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