High-Power / High-Voltage (250 kW / 750V) SiC-Based Inverter for Electric Vehicles Applications

This paper presents the study and development of a high-power range traction inverter based on Full Silicon Carbide semiconductors. Implementing this breakthrough technology leads to an increase of the converter power density as well as its efficiency at high-frequency operation. Experimental characterization contributes to understanding of the power module switching behavior under different conditions with variation of some key parameters (gate driver resistor, load current, switching voltage, and stray inductor). Full-scale experimental results are provided to demonstrate a converter efficiency of 99% and a power density of 28 kW/L.