Electric machine and Inverter Coupled Multi-physical Models

This paper presents a seamless parametrization procedure for building of the electric and thermal model of DC/AC inverter, connected into a multi-physical inverter model as well as the stand-alone electromagnetic and thermal model of an electrical machine. Both of them are integrated into a single multi-physical electric machine model. The multiphysical models are further interconnected on system level allowing to study the thermal behavior of the components. The importance of multi-physical coupling of the vehicle drive train components (electrical and thermal coupling of electric machine and inverter) is shown through the temperature comparison of de-coupled and coupled thermal models.