Deformation analysis of Press-pack IGBT using thermal mechanical coupling method

Bowen Gu*, Haimeng Wu, Volker Pickert, Bing Ji, Siyang Dai, Zhiqiang Wang

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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    Abstract

    Press-pack Insulated Gate Bipolar Transistors (PP IGBT) are becoming increasingly used in HVDC and FACT applications. Due to its unique packaging, its reliability issues have also attracted increasing attention in the engineering field. More comprehensive investigation into the thermal, electrical and mechanical factors should be conducted to reveal the operation condition and status of the devices. The objective of this work is to study the relationship among the deformation of the collector groove and the thermal stress of the chip as well as the contact pressure by simulating the PP IGBT under normal and abnormal conditions. A sophisticated 3D finite element (FE) model of a PP IGBT has been developed which includes the coupling with thermal–mechanical effect. Also, the influence of different pressure and thermal stress on deformation is discussed thoroughly that can provide insight of how to monitor the status of a PP IGBT from the perspective of deformation.
    Original languageEnglish
    Title of host publicationConference Proceedings of 2021 International Joint Conference on Energy, Electrical and Power Engineering
    Subtitle of host publicationPower Electronics, Energy Storage and System Control in Energy and Electrical Power Systems
    EditorsCungang Hu, Wenping Cao, Pinjia Zhang, Zhenbin Zhang, Xi Tang
    Place of PublicationSingapore
    PublisherSpringer
    Chapter3
    Pages23-33
    Number of pages11
    Volume899
    ISBN (Electronic)9789811919220
    ISBN (Print)9789811919213
    DOIs
    Publication statusPublished - 2022
    Event2021 International Joint Conference on Energy, Electrical and Power Engineering - Huanshan, China
    Duration: 5 Nov 20217 Nov 2021

    Publication series

    NameLecture Notes in Electrical Engineering
    PublisherSpringer
    Volume899
    ISSN (Print)1876-1100
    ISSN (Electronic)1876-1119

    Conference

    Conference2021 International Joint Conference on Energy, Electrical and Power Engineering
    Abbreviated titleCoEEPE 2021
    Country/TerritoryChina
    CityHuanshan
    Period5/11/217/11/21

    Keywords

    • Press-pack IGBT
    • thermal-mechanical
    • deformation
    • 3D FE model
    • Reliability

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