Forced-Air-Cooled 10 kW Three-Phase SiC Inverter with Output Power Density of more than 20 kW/L

摘要

A forced-air-cooled three-phase inverter built with SiC-JFETs and -SBDs as power semiconductor devices was designed and fabricated. The inverter can operate steadily at a rated power of 10 kW in a junction temperature range up to 200°C. Output power density of more than 20 kW/L was achieved. The design specifications, the power module fabrication process, the results of a high-temperature operating test and a continuous switching test are described in turn.