Steps Towards Prediction of Conducted Emission Levels of an RB-IGBT Indirect Matrix Converter

Numerical prediction of conducted emissions has the potential to become an important utility in power converter design. Advance knowledge of the conducted emission and simulations of the EMC performance can help to reduce cost and time in the design process. This paper presents a detailed time-domain simulation of an Indirect Matrix Converter (IMC) for predicting common and differential mode conducted emissions. The simulation model includes the parasitic inductances and capacitances of the PCB layout, whose values are obtained using the Partial Element Equivalent Circuit (PEEC) method. The simulation also includes the EMC filter, the mains connection cable and a load model for which parameters and parasitics are obtained from measurements. The results of the simulation are compared with conducted emissions measurements of an existing IMC Index prototype.