Mitigation of Power Quality Problems with Series Active Filter

Abstract: Power quality is becoming an increasingly important topic in the performance of many industrial applications. There are numerous types of power quality issues and power problems such as voltage sags, voltage swells, interruptions, phase shifts, harmonics and transients. Control of power quality problems involves cooperation between network operator (utility), customer and equipment manufacturer. Series Active Filter injects three single phase AC voltages in series with the distribution feeder and in synchronism with the voltages of the distribution system. Series Active Filter establishes interface between utility and customer connected in series between the supply and load to mitigate the three major power quality problems, namely, the voltage sags, swells, and harmonics. In this paper, focus is given only on Series Active Filter system which will be simulated by using MATLAB software in order to mitigate voltage sags, swells, and harmonics. Mathematics model for calculation of voltage disturbances and injected voltage also described