Uncertainties in the Lifetime Prediction of IGBTs for a Motor Drive Application

Ionuţ Vernica, Huai Wang, Frede Blaabjerg

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

    6 Scopus citations

    Abstract

    Lifetime prediction involves various aspects of uncertainties due to limited mission profile data, lifetime models, electro-thermal modeling errors, etc. The predicted lifetime results may have considerable discrepancies with different assumptions of the uncertainties. This study aims to investigate the impact of different lifetime model assumptions for the IGBT switches in a motor drive application with a specific representative operation profile. Moreover, the sensitivity of the IGBT switching frequency and operating grid voltage to the predicted lifetime is also studied. The outcomes serve as a first effort to quantifying the uncertainties in the reliability analysis of power electronic systems for motor drive applications.

    Original languageBritish English
    Title of host publicationProceedings - 2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781538660539
    DOIs
    StatePublished - 26 Dec 2018
    Event2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018 - Shenzhen, China
    Duration: 4 Nov 20187 Nov 2018

    Publication series

    NameProceedings - 2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018

    Conference

    Conference2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018
    Country/TerritoryChina
    CityShenzhen
    Period4/11/187/11/18

    Keywords

    • lifetime model
    • motor drive
    • Power semiconductor devices
    • sensitivity analysis
    • uncertainty analysis

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