Sensorless PWM rectifiers with active filter action

This paper presents experimental results of a sensorless control strategy for PWM rectifiers with active filtering function. The proposed technique, already presented for PWM rectifiers, has the capability to reject harmonic components from the grid, and can be employed for harmonic mitigation of shunt connected load. The mitigation of harmonics of the current shaping control is improved with a multiple resonant scheme tuned in the desired components.