Electric Power ›› 2023, Vol. 56 ›› Issue (2): 53-58,67.DOI: 10.11930/j.issn.1004-9649.202108069

• Power System • Previous Articles     Next Articles

Thermal Load Application Method for Temperature Cycle Test of Power Module PP-IGBT

LI Biaojun1, LENG Mei1, DAI Jiashui1, WANG Ning2   

  1. 1. Tianshengqiao Bureau, EHV Transmission Company of China Southern Power Grid Co., Ltd., Xingyi 562400, China;
    2. Rongxin Huiko Electric Co., Ltd., Anshan 114051, China
  • Received:2021-08-19 Revised:2022-12-06 Accepted:2021-11-17 Online:2023-02-23 Published:2023-02-28
  • Supported by:
    This work is supported by Science and Technology Project of China Southern Power Grid Corporation (No.CGYKJXM20180173).

Abstract: Temperature cycling test is an important test method to study the thermal fatigue aging characteristics of power module press pack insulated gate bipolar transistor (PP-IGBT) devices. Therefore, taking the PP-IGBT of flexible direct converter valve power module as the research object, and combined with theoretical calculation and finite element simulation analysis, a thermal load application method for temperature cycle test is proposed, and the corresponding electrical input target parameters are obtained. A temperature cycle test platform is built to monitor the device temperature in real time, and a comprehensive comparison analysis is made on the temperature data of the junction, shell and heatsink at the measuring point of the tested power module IGBT devices. The simulation results have verified the effectiveness of the proposed method, and can provide a research approach for the PP-IGBT test of the same type.

Key words: press pack IGBT, thermal aging, finite element, temperature cycle