Power Quality Improvement in Distribution Networks Using Dstatcom

Abstract

A Power quality problem is an occurrence manifested as a nonstandard voltage, current or frequency that results in a failure or a mis operation of end user equipments. Utility distribution networks, sensitive industrial loads and critical commercial operations suffer from various types of outages and service interruptions which can cost significant financial losses. With the restructuring of power systems and with shifting trend towards distributed and dispersed generation, the issue of power quality is going to take newer dimensions. In developing countries like India, where the variation of power frequency and many such other determinants of power quality are themselves a serious question, it is very vital to take positive steps in this direction. The present work is to identify the prominent concerns in this area and hence the measures that can enhance the quality of the power are recommended. At present, a wide range of flexible ac controllers, which capitalize on newly available power electronics components, are emerging for custom power applications. The device considered in this work is distribution static synchronous compensator (DSTATCOM). The fast response of DSTATCOM makes it the efficient solution for improving power quality in distribution systems