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Vol. 87, Issue 1, January 2008, pp.85-93




Modeling and Simulation of Dynamic Voltage Restorer (DVR) for Enhancing Voltage Sag


Amrita RAI and A. K. NADIR

Lingyas institute of Management & Technology

Nachauli, Old Faridabad- 121002

Tel.: 91-129-2201008, 2201009, fax: +2202615

E-mail: amritaskrai@yahoo.com



Received: 3 November 2007   /Accepted: 21 January 2008   /Published: 28 January 2008


Abstract: The aim of this paper is to summaries the fundamental aspects of voltage sag production and their effects on power quality as well as enhancing this power quality in distribution network, using FACTS (Flexible AC Transmission System) Devices i.e. Dynamic Voltage Restorer (DVR). DVR is a powerful custom power device for short duration voltage compensation, which is connected in series with the load & hence it possesses some advantages. (In this paper detailed modeling and simulation and analysis of the DVR device is presented).


Keywords: Dynamic voltage restorer (DVR), Voltage sag, Power quality, FACTS


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