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30-kw All-sic Inverter with 3d-printed Air-cooled Heatsinks for Plug-in and Full Electric Vehicle Applications

by Madhu Sudhan Chinthavali, Zhiqiang Wang
Publication Type
Journal Name
Materials Science Forum
Publication Date
Page Numbers
845 to 848

This paper presents the design and development of a 30-kW 3D printed based air-cooled
silicon carbide (SiC) inverter for electric vehicle application. Specifically, an all-SiC air-cooled
power module is designed, aiming at reduced thermal resistance for high temperature and high
power density operation. The module assembly incorporates three major parts: an optimized 3D
printed heat sink, a SiC MOSFET phase-leg module, and a two-channel gate driver. The electrical
and thermal performance of the power module is evaluated through double pulse test and
continuous operation. Based on the air-cooled power module, a three-phase half-bridge voltage
source inverter with 3D-printed air duct is built and tested to further verify the performance of the
power module.