Simulation of Three-Phase Active Filter forHarmonics Reduction and Reactive PowerCompensation

[摘要] This paper presents a simulation of a simple control scheme for a three-phase shunt active filter to remove harmonics and reactive power compensation of the non-linear loads. A 3-phase voltage source inverter bridge with a dc bus capacitor is used there as an active filter (AF). A PWM current control is used to generate the gating signals to the AF. Source reference currents are calculated from load currents, dc bus voltage and source voltage. The command currents for AF are calculated using source reference currents and load currents. A three- phase diode rectifier with resistive loading is used as non-linear load. The validity of scheme is shown by simulation results.

[关键词] Active Filter (AF);Pulse Width Modulation(PWM);Total Harmonic Distortion(THD)