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Advances in Power Electronics
Volume 2012 (2012), Article ID 871652, 11 pages
http://dx.doi.org/10.1155/2012/871652
Research Article

Mitigation of Voltage Dip and Voltage Flickering by Multilevel D-STATCOM

Visvesvaraya National Institute of Technology, Nagpur, India

Received 3 May 2012; Accepted 19 July 2012

Academic Editor: Neville Watson

Copyright © 2012 M. S. Ballal et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The basic power quality problems in the distribution network are voltage sag (dip), voltage flickering, and the service interruptions. STATCOM is a Flexible AC Transmission Systems (FACTS) technology device which can independently control the flow of reactive power. This paper presents the simulation and analysis of a STATCOM for voltage dip and voltage flickering mitigation. Simulations are carried out in MATLAB/Simulink to validate the performance of the STATCOM. A comparison between the six-pulse inverter and the five-level diode-clamped inverter is carried out for the performance of 66/11 KV distribution system.