Research on Performance Improvement of Active Power Filter Based on Phase-Lag Compensation

The reasons of the compensation current phase-lag of active power filters (APFs) is analyzed in detail, the corresponding mathematical model is set up, and the phase-lag to influence of compensation performance is described as well by MATLAB. After then, a lead correction method of compensation current with zero phase-lag is proposed to implement the phase synchronization of supply source components. The simulation and actual application results show the feasibility and validity of the proposed method.