In this paper, a traction silicon carbide (SiC) inverter is reported for electric vehicles. First, the electric field norm inside and outside an inverter unit are calculated by electric and magnetic simulations and the differences between the silicon (Si) insulated gate bipolar transistor (IGBT) and SiC are explained in noise and efficiency of the conversion. Second, the tested motors are interior permanent magnetic synchronous motors (IPMSM), then flux weakening methods have been proposed for preventing the saturation voltage of an inverter in high speed region. The simulation and experimental results which include test runs by a motor bench which emulates electric vehicle (EV) show that the proposed system drives the motor precisely.
