Active filter based on adjusting maximum phase of deviation

This paper presents an available method-an active filter based on adjusting maximum phase of deviation. The active filter generates relevant followingcurrent, in accordance with the model of the inverter being controlled by instruction current which is generated by measurement part. On the ground of analysing all kinds of inverters′condition of work, through the aftertoroid comparing PWM method of adjusting maximum phase of deviation, this paper introduces a control tactic of main circuit, the method on generation of random PMW and demand of the voltage of DC side. Simulation results show that this method can track inverter accurately and achieve dynamic compensation. The principle is clear and the control simple.