Shunt Active Filter Algorithms for a Three Phase System

This paper project we study the simulation of Shunt Active Power filter by using Indirect current control technique. This control techniques are working under both balanced and unbalanced three phase voltage source conditions and it is feeding to a adjustable speed drive the torque speed characteristics of a motor is presented. Indirect current control technique is implemented under dynamic load condition and load balanced condition. The equal current distribution method of synchronous detection theory is used here to calculate the three phase compensating currents to be provided by the active filter.