High-temperature characteristics of SiC module and 100 kW SiC AC-DC converter at a junctio

High-temperature characteristics of SiC module and 100 kW SiC AC-DC converter at a junction

temperature of 180°C

Juanjuan Lu; Zhe Zhou; Jianhong Hao; Yi Hao; Hao Zhang; Ruixiang Hao

【期刊名称】《全球能源互联网：英文版》 【年(卷),期】2019(002)006

【摘要】High-temperature,high-power converters have gained importance in industrial applications given their ability to operate in adverse environments,such as in petroleum exploration,multi-electric aircrafts,and electric vehicles.SiC metaloxide-semiconductor field-effect transistor(MOSFET),a new,wide bandgap,high-temperature device,is the key component of these converters.In this study,the static and dynamic characteristics of the SiC MOSFET,half-bridge module,are investigated at the junction temperature of 180℃.A simplified experimental method is then proposed pertaining to the power operation of the SiC module at 180℃.This method is based on the use of a thermal resistance test platform and is proven convenient for the study of heat dissipation characteristics.The high-temperature characteristics of the module are verified based on the conducted experiments.Accordingly,a 100 kW high-temperature converter is built,and the test results show that the SiC converter can operate at a junction temperature of 180℃in a stable manner in compliance with the requirements of high-temperature,high-