Harmonic resistance emulator technique for three-phase unity power factor correction

In this paper, a new technique for three-phase power factor correction, using the typical three-phase line side active front-end converter, is proposed. The proposed technique is capable of simplifying the three-phase power factor correction algorithms to a greater extent. As a consequence, the sampling time will reduce considerably and switching frequency of the converter can be pushed further. The proposed scheme is suitable for the sine-triangle PWM (pulse width modulation) implementation but it completely eliminates the need of frame-synchronization. It also avoids the forward and backward d-q reference-frame transformations. Moreover, presetting of the two orthogonal references is also not required. Simulation results are presented.