Fuzzy Based Control of Shunt Active Filter for Harmonic Compensation for Application in Three Phase Four Wire Power System

M.Nafar; B.Azadbakht; K.Adinehvand

Volume : III, Issue : VIII, August - 2014

Fuzzy Based Control of Shunt Active Filter for Harmonic Compensation for Application in Three Phase Four Wire Power System

M. Nafar , B. Azadbakht , K. Adinehvand

Abstract :

Non-linear loads, especially power electronic loads, create harmonic currents and voltages in the power systems. For many years, various active power filters (APF) have been developed to suppress the harmonics, as well as compensate for reactive power, so that the utility grid will supply sinusoidal voltage and current with unity power factor. Conventionally, a shunt APF is controlled in such a way as to inject harmonic and reactive compensation currents based on calculated reference currents. The injected currents are meant to �cancel� the harmonic and reactive currents drawn by the non-linear loads. In this paper the fuzzy control scheme for harmonic compensation using shunt active filter is presented and analyzed.