A simple control method for PWM rectifiers and shunt active power filters

A simple algorithm to control the PWM rectifier has been presented. Harmonics and unbalance in the AC-side line currents are compensated and the DC-bus voltage is regulated. The power factor of the compensated line currents is high. The control method is effective even when the AC-side voltages are distorted and unbalanced. The algorithm may be used unmodified to control an active power filter. Simulation and experimental results have been presented to validate the control technique.