Comparison of Current Control Methods for a Three Phase Shunt Active Filter

Abstract

Implementation of a new algorithm with Shunt Active Filter’s Various Current Control technique is proposed.A non-linear load, three-phase, six-pulse, resistive load converter is taken into account. In order to generate switching pulses which lead to the generation of current, four different switching methods are used. Due to its simplicity, rapid and precise implementation response, Hysteresis Current Control is commonly used. The key problem, therefore, is its variable switching frequency, resulting in additional power dissipation and the incorporation into the existing framework of high-frequency harmonics.In this paper,an Adaptive Hysteresis Current Control has been implemented to address the issue, generating hysteresis bandwidth that spontaneously helps in smoother and continuous frequency.In contrast to three other control methods, the cumulative,this approach has decreased the rate of Gross Harmonic Distortion. The architecture theory of the suggested SAF applying the PI- related optimization method is being evaluated via MATLAB and findings demonstrate the efficiency of the suggested technique.