Efficient electrothermal simulation of power electronics for hybrid electric vehicle

An IGBT module is an essential part of any hybrid electric vehicle. In turn, its thermal management happens to be crucial in order to reach high reliability coupled with high efficiency. In the present work, a methodology based on Krylov based model reduction is employed to generate automatically an accurate compact thermal model of the IGBT-module from a high dimensional finite element model. We present a complete design flow when one starts from an accurate finite element model, generates a compact dynamic thermal model and then uses it in a system simulator to develop the circuitry that is aware of thermal behavior of the system.