Intelligent Controller Based Shunt Active Power Filter for Enhancement of Power Quality Problems

Power Quality is a major concern now. It depends on voltage, current, and frequency parameters. Power quality issues is defined as “any occurrence manifested in current, voltage, and frequency deviations that results in damage, upset or failure of end-use equipments. The excessive use of non-linear loads causes the power quality To mitigate this Power quality issue a Shunt Active Power Filter is used. It produces compensating current which is equal and phase opposition to the harmonic currents. The switching pulses are produced by the hysteresis current controller. This paper gives detailed analysis of study on the Id-Iq control scheme. This control scheme is carried out by using matlab / simulink Toolbox and Simulation results are observed. Key Words: power quality, shunt active filter, hysteresis current controller, non-linear load, d-q Method