EMC assessment of the railway traction system by using PSpice

This paper describes how to analyze the EMC performance of the railway traction system by using PSpice. This analysis method is based on the accurate modelling of the IGBT and power diodes. The paper gives the analysis method as well as the modelling details of these power devices. An efficient way to predict the worst EMC performance is proposed, especially for high frequency EM noise. We have also studied the impact of the reverse-recovery time of a free wheeling diode on high frequency EM noise generation.