Electric vehicle drive inverters simulation considering parasitic parameters

Due to always increasing commutation speed, parasitic parameters such as interconnection inductances and stray capacitors are directly linked to voltage surge, resonance and electromagnetic interference. To guide the selection of power components, assess low-inductive film capacitors and laminated bus bar, and in the end realize the high power density and high reliability for electrical vehicle inverters, a simulation platform based on Matlab/Simulink has been developed. Parameters of the simulation platform strictly accord with the practical working conditions, even parasitic existing in components and connections are also considered. This paper introduces the switching mechanism and the distribution of circuit parasitic. The system modeling and parameters confirmation of the simulation platform are presented in detail. Experimental results are shown to verify the effectiveness of the simulation platform.