Published by Electrotek Concepts, Inc., PQSoft Case Study: Commercial Facility Harmonic Evaluation, Document ID: PQS1005, Date: March 15, 2010. Abstract: Utility power system harmonic problems can often be solved using a comprehensive approach including site surveys, harmonic measurements, and computer simulations. This case study presents the results for a commercial facility harmonic evaluation. The simulations wereContinue reading “Commercial Facility Harmonic Evaluation”
Tag Archives: Harmonics
Arc Furnace Harmonic Evaluation
Published by Electrotek Concepts, Inc., PQSoft Case Study: Arc Furnace Harmonic Evaluation, Document ID: PQS1004, Date: March 15, 2010. Abstract: Utility power system harmonic problems can often be solved using a comprehensive approach including site surveys, harmonic measurements, and computer simulations. This case study presents the results for an arc furnace harmonic evaluation. The case studyContinue reading “Arc Furnace Harmonic Evaluation”
Harmonics Analysis: Using Fourier to Analyze Waveforms
Published by Amna Ahmad All repetitive waveforms can be composed of combinations of many sinusoidal waves. Any waveform can be analyzed to determine the component quantities. In this article, learn how to use Fourier Analysis to determine the amplitudes of harmonic components and their phase relationship to the fundamental component in various periodic non-sinusoidal waveforms.Continue reading “Harmonics Analysis: Using Fourier to Analyze Waveforms”
Overhead Line Fault Section Positioning System Based on Wireless Sensor Network
Published by Ai-hua Dong, Xinlin Geng, Yi Yang, Ying Su, Mengyao Li, Henan Polytechnic University Abstract. This paper introduces overhead line fault detection and location system as the core of industrial control computer. The combination of software and hardware, the methods of current rate of change and zero current detection are used, and so theContinue reading “Overhead Line Fault Section Positioning System Based on Wireless Sensor Network”
Voltage Harmonics Transfer through Medium Voltage Instrument Transformers
Published by Jarosław ŁUSZCZ, Politechnika Gdańska, Wydział Elektrotechniki I Automatyki Abstract. Voltage transformers are widely used in power quality monitoring systems in medium and high voltage grids. This paper presents accuracy problems related to voltage harmonics transfer through instrument transformers. A simplified lumped-parameters wideband circuit model of the voltage transformer is proposed and verified byContinue reading “Voltage Harmonics Transfer through Medium Voltage Instrument Transformers”
Harmonic Current Impact on Transient Overvoltages during Filter Switching-Off
Published by Yuriy VARETSKY1, Roman PAVLYSHYN2, Michał GAJDZICA1,AGH University of Science and Technology (1), Lviv Polytechnic National University(2) Abstract. This paper focuses on the features of power filter switching-off in industrial power supply systems. The filter switching-off behavior under a large amount of a harmonic current component has been analyzed. The effect of harmonic currentContinue reading “Harmonic Current Impact on Transient Overvoltages during Filter Switching-Off”
Estimation of Voltage and Current Distortions in the Power System Supplying the AC Arc Furnace
Published by Wiesław BROCIEK1, Robert WILANOWICZ2,Warsaw University of Technology (1) , Radom University of Technology (2) Abstract. The paper presents a circuit model of three phase arc arrangement, taking into account the nonlinearity of the arc appearing In the particular phases as well as the windings vector groups of a furnace transformer. This model wasContinue reading “Estimation of Voltage and Current Distortions in the Power System Supplying the AC Arc Furnace”
Power Quality Issues, Solutions and Standards: A Technology Review
Published by P. M. Balasubramaniam1 and S. U. Prabha2*1Department of Electrical and Electronics Engineering, Sri Shakthi Institute of Engineering and Technology, Coimbatore, India2Department of Electrical and Electronics Engineering, Sri Ramakrishna Engineering College, Coimbatore, India *Corresponding author. E-mail: baluanujayen@gmail.com AbstractClassically, the aim of the electric power system is to generate electrical energy and to deliver thisContinue reading “Power Quality Issues, Solutions and Standards: A Technology Review”
Higher Harmonics Compensation in Grid-Connected PWM Converters for Renewable Energy Interface and Active Filtering
Published by Szymon PIASECKI1, Marek JASIŃSKI1, Krzysztof RAFAŁ1, Marek KORZENIEWSKI 2, Aritz MILICUA3, Politechnika Warszawska, Instytut Sterowania i Elektroniki Przemysłowej (1), Politechnika Białostocka, Katedra Energoelektroniki i Napędów Elektrycznych (2), Uniwersytet w Mondragon, Wydział Elektryczny (3) Abstract. The paper presents overview of high-order harmonics compensation methods applied for control of grid-connected converter. Two harmonic compensation methodsContinue reading “Higher Harmonics Compensation in Grid-Connected PWM Converters for Renewable Energy Interface and Active Filtering”
Study of Power Quality Disturbance for Restructuring of Power Systems
Published by Rimjhim Tiwari, Dilip Kumar, International Journal of Engineering and Technical Research (IJETR), ISSN: 2321-0869, Volume-2, Issue-12, December 2014. Abstract— In recent years, the traditional power systems’ structures have been changed, and the concern over power quality has increased due to the new generation of load equipments. This equipments has been fully automated electronically,Continue reading “Study of Power Quality Disturbance for Restructuring of Power Systems”
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