EMI filters architectures for power electronics in hybrid vehicles

This paper deals with the EMI (Electromagnetic Interference) issue related to the power electronic converters of a hybrid vehicle. The effects of different configurations of the power supply system that feeds all the power conversion units are investigated in order to minimize the overall conducted EMI. In particular, two different power supply distribution networks (centralized and distributed) and related EMI filters architectures have been analyzed and compared in terms of conducted emissions and EMI filter sizes and efficiency.