Simulation and Analysis of Series Active Filter Using AC-AC Converter for Mitigation of Sag

This paper presents three phase Series Active Filter using AC-AC Converter for mitigation of sag.. Now-a-days, industrial and distribution(domestic) consumers face problems associated with voltage and power quality. Voltage quality is mostly permeated by voltage sags, swells and interruptions. But, voltage sags occur more frequently than interruptions .To overcome this problem, series active filter is used, which is one of the most suitable and economical solution to compensate for voltage sags.. The proposed system is based on AC-AC converter with injection transformer. The operation principle and theoretical analysis of series active filter are presented. Here, AC-AC converters are used which eliminates the need of energy storage devices. The simulation and design of series active filter performance with results are shown in this paper.