Busbar Design and Optimization for High Power Three-phase Inverter with WBG Device

Abstract

The wide-band gap devices can switch at a higher frequency with a higher dV/dt well as improve switching performance. The optimization of busbars can reduce the power loop parasitic which will reduce the overvoltages during the device's state transient. Busbar is not only required to carry and distribute the current to the power module, but also need to provide a path for decouple the high-frequency current ringing and minimize the impact of high-frequency current coupling. This paper introduced a workflow of a high power three-phase inverter design by considering the power converter layout to achieve the maximum power and , and a comparative study between three-different busbar designs is presented.