Power Quality Enhancement of Shunt Active Power Filter for Non-Linear Loads

Abstract

in this paper, the power quality for three phase four wire non-linear load has been improved using different control types of shunt active power filter (SAF). The compensated (reference) current can be generated by the control algorithm and compared with filter injected current through a current controller to generate six pulses for driving IGBT. The source current should be sinusoidal and in phase with the voltage. Also the total harmonic distortion (THD) must be less than 5% for meeting the IEEE standards 519-1992.