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Voltage Sag and Mitigation Using Dynamic Voltage Restorer (DVR) System

Shairul Wizmar Wahab, and Alias Mohd Yusof, (2006) Voltage Sag and Mitigation Using Dynamic Voltage Restorer (DVR) System. Elektrika Journal of Electrical Engineering, 8 (2). pp. 32-37. ISSN 01284428

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Official URL: http://fke.utm.my/elektrika/dec06/paper6dec06.pdf

Affiliations

Universiti Teknologi Malaysia, Faculty of Electrical Engineering

Abstract

This paper highlights voltage sag as one of a power quality issue and Dynamic Voltage Restorer (DVR) is using for mitigation of voltage sag. Voltage sag is short reduction voltage from nominal voltage, occurs in a short time which can cause damage and loss of production especially in industrial sector. Voltage sag always related with short circuit events and starting motor which draw very high lagging current. Since voltage sag is creating worse effects, the researchers almost keen to find the solutions for this problem. Nowadays, a lot of devices have been developed to mitigate voltage sag such as Dynamic Voltage Restorer (DVR), Distribution Static Compensator (D-Statcom) and Uninterruptible Power Supply (UPS). In this paper, focus is given only on DVR system which will be simulated by using PSCAD software in order to mitigate voltage sag. Mathematics model for calculation of voltage sag and voltage injection by DVR System also described.

Item Type:Journal
Keywords:Dynamic voltage restorer, PSCAD software, Voltage sag.
Subjects:T Technology, Engineering
ID Code:2489

[1] M.F. Faisal, “Power quality management program: TNB’s Experience,” Distribution Engineering Department, TNB, 2005.

[2] A. Felce, G. Matas, Y.D. Silva, “Voltage sag analysis and solution for an industrial plant with embedded induction motors,” Inelectra S.A.C.A. Caracas, Venezuela, 2004.

[3] A. Ghosh and G. Ledwich, Power Quality Enhancement Using Custom Power Devices, Kluwer Academic Publishers, 2002.

[4] P.T. Nguyen and T.K. Saha (2004), “DVR against balanced and unbalanced voltage sags: Modeling and simulation,” IEEE-School of Information Technology and Electrical Engineering, University of Queesland, Australia, 2004.

[5] Pirjo Heine, Matti Lehtonen, “Voltage sag distributions caused by power system faults,” IEEE Transactions on Power Systems, Vol. 18, No. 4, November 2003.

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