Sensitivity analysis of high-frequency system-level model of electric drivetrain for accurate common mode voltage and bearing current prediction

This study performs a sensitivity analysis of a high-frequency system-level model of an electric drivetrain, which consists of a detailed representation of the inverter, cable, and electric motor. The model is specifically developed to analyse critical HF challenges, including voltage stress on motor windings and the generation of motor shaft voltages and bearing currents. The complexity of the model with an excessive number of parameters makes the model too complicated to understand which parameter(s) have a big influence on common mode voltage and bearing current. With modeFRONTIER, we investigate the influence of parameters on output results to obtain critical parameters for accurate prediction.