Electrothermal design of power inverters for automotive electric drivetrain systems using multidomain simulation

Electrothermal design and optimization of motor drive systems for automotive electric drivetrain applications requires simulation methods to handle large differences in timescale and component modelling across multiple physical domains. This paper presents an approach based on model-reduction and co-simulation techniques using commercially available finite element method (FEM) and circuit/system simulation software. The methodology is demonstrated on an industrial prototype.