Applications of silicon carbide power devices in three-phase voltage-fed induction motor drives for electric vehicles

The performance of the three-phase voltage-fed induction motor drives with SiC Schottky diodes operating in 180deg mode and 120deg mode is studied. The Cree SiC Schottky diodes CSD10060 with the reverse breakdown voltage V_BR = 600 V and the maximum forward current Ipmia = 8 A are used. The inverter efficiency in 180deg mode operation is compared with that in 120deg mode operation by obtaining the losses in the circuit using PSpice simulations. The behavior of MOSFETs as well as the diodes in the inverter circuit operating at 180deg mode and 120deg mode is studied extensively using PSpice simulations.