Sliding Mode SVPWM Current Control for Shunt Active Power Filter

This paper proposes sliding mode SVPWM current tracking control method for shunt active power filter (SAPF). Different from the conventional hysteresis SVPWM (HSVPWM), the SVPWM method based on sliding mode control (SMC) optimizes the method of judging the area where the current error vector is located during the reference current tracking control. The simulation results show that when the system reaches a steady state, the sliding mode SVPWM control method proposed can make the shunt active power filter have better active filtering performance and robustness than HSVPWM method.