Analysis of electromagnetic interference in DC/DC converter system of electric vehicle based on saber

Abstract

DC/DC converter is a key device of electric vehicles (EV), but also the main source of electromagnetic interference. So researches on EMI in DC/DC converters become a hotsop in recent years. This paper analyzes three main factors of EMI in DC/DC converters in EVs and based on these factors three suppression methods are proposed. Simulations of each methods are then conducted in software Saber to indicate effectiveness and praticability of suppression methods. Three suppression methods proposed in this paper can provide a reference for automobile manufacturers to design a DC/DC conversion system with low EMI.