Prediction of bond wire fatigue of IGBTs in a PV inverter under long-term operation

Paula Diaz Reigosa, Huai Wang, Yongheng Yang, Frede Blaabjerg

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

    21 Scopus citations

    Abstract

    Bond wire fatigue is one of the dominant failure mechanisms in IGBT modules. However, the bond wire lifetime is not easily predictable and measurable to date due to several challenges. To overcome this challenge, this paper proposes a Monte Carlo based analysis method to predict the lifetime consumption of bond wires in a Photovoltaic (PV) inverter under long-term operation. The parameter distributions of IGBTs due to manufacturing variation and the annual stress profiles due to intermittent nature of solar irradiance and ambient temperature are taken into consideration. The proposed method enables a more realistic lifetime prediction with a specified confidence level compared to the state-of-the-art approaches. A study case on IGBT modules in a 10 kW three-phase PV inverter demonstrates the procedure and the results of the analysis. Finally, the lifetime distribution of bond wires permits to estimate the risk of unreliability of a single IGBT in a Photovoltaic (PV) inverter.

    Original languageBritish English
    Title of host publicationAPEC 2015 - 30th Annual IEEE Applied Power Electronics Conference and Exposition
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages3052-3059
    Number of pages8
    EditionMay
    ISBN (Electronic)9781479967353
    DOIs
    StatePublished - 8 May 2015
    Event30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 - Charlotte, United States
    Duration: 15 Mar 201519 Mar 2015

    Publication series

    NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
    NumberMay
    Volume2015-May

    Conference

    Conference30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015
    Country/TerritoryUnited States
    CityCharlotte
    Period15/03/1519/03/15

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