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A High-Power Density Segmented Traction Drive Inverter

Publication Type
Conference Paper
Book Title
Proceedings of 2023 IEEE Energy Conversion Conference and Expo
Publication Date
Page Numbers
1825 to 1830
Publisher Location
New Jersey, United States of America
Conference Name
2023 IEEE Energy Conversion Conference and Expo (ECCE)
Conference Location
Nashville, Tennessee, United States of America
Conference Sponsor
Conference Date

High power density is one of the requirements for traction drive inverters for meeting increasing demand for higher power and performance electrical vehicles (EV). This paper presents design and preliminary experimental results for a 100 kW high-power density inverter for EV traction drive applications. The inverter design was based on the segmented inverter topology that can significantly reduce the inverter DC filter capacitor and employs low-profile planar double-sided cooled SiC MOSFET-based power modules, compact mini-channel heat sinks with fin-profile optimized using genetic-algorithms, and high-ripple current capacitors. The design produced a compact inverter package with a total volume less than 1 litter, exceeding the power density goal of 100 kW/L. Experimental results are included to demonstrate the cooling and electrical performance.