Three-phase voltage source inverter using SiC MOSFETs — Design and Optimization

This work aims at designing a three-phase voltage source inverter using SiC MOSFET, which is dedicated to electric vehicle applications. Power losses of the SiC MOSFET will be analyzed, and general guidelines for a minimum heat-sink size selection based on the static thermal behavior will be addressed. Furthermore, EMI parasitic parameters resulting from the traces´ inductances and the heat-sink will be estimated based on the physical behavior and the layout of the power circuit without the requirements of commercial software tools. The estimated EMI behavior of the voltage source inverter will be compared with the experimental results within the conducted EMI range in order to validate the analysis.