Prediction of differential-mode EMI in the AC side of the three-phase PWM rectifier

Saber simulation software is one of the most powerful power electronic simulation software in the world. A typical three-phase PWM rectifier is in order to investigate the EMI. In this paper, the lumped equivalent circuit model of DM EMI is analyzed and a simple equivalent circuit is proposed. Through the simulation we can get time-domain analysis, and obtain frequency-domain analysis after FFT. The simulation waveforms of DM EMI are compared with the previous results of the equivalent circuit of actual experiments, at last this also verified the validity of the research which involved in this paper at the same time.