Reliability of Capacitors in Power Electronic Systems (ReliaCap)

Project Details

Description

Power electronics enables efficient generation (e.g. from renewable energy sources) and consumption (e.g. motors, electric cars, appliances) of electrical energy by using power electronic converters, which consist of semiconductor devices, capacitors and other components. Capacitors dominant the failures (i.e. nearly 30%), cost and size in power electronic systems. This project addresses better understanding of reliability of capacitors under various electrical, thermal and environmental stresses. It will develop associated innovative design tools for optimal selection and reliable operation of capacitors, taking advantage of new reliability prediction models based on physics-of-failure approach, lifetime verification by accelerated testing and on-line active control of the stressors (e.g. temperature). The outcome will be a new paradigm in the research on reliability of power electronics, proven design tools released to public and a cost-effective solution for industry to achieve more reliable and more efficient power electronic systems for renewable sources and energy efficient applications. At the same time, improved reliability could reduce maintenance cost, reduce environmental impact and reduce the risk of suppliers of power electronic products, and thereby consolidate Denmark's strong position in this technology area.
StatusFinished
Effective start/end date01/01/201331/12/2014

Funding

  • The Danish Council for Independent Research| Technology and Production Sciences: DKK2,245,735.00

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  • Activities

    • 8 Conference presentations
    • 2 Talks and presentations in private or public companies
    • 2 Visiting another research institution
    • 1 Organisation or participation in workshops, courses, or seminars

    IEEE International Power Electronics and Application Conference and Exposition 2014

    Huai Wang (Speaker)

    4 Nov 20146 Nov 2014

    Activity: Talks and presentationsConference presentations

    ECPE Workshop on Innovations in Passive Components for Power Electronics Applications

    Huai Wang (Participant)

    9 Oct 201410 Oct 2014

    Activity: Attending an eventOrganisation or participation in workshops, courses, or seminars

    2014 IEEE Energy Conversion Congress and Exposition (ECCE)

    Huai Wang (Speaker)

    14 Sep 201419 Sep 2014

    Activity: Talks and presentationsConference presentations

    Research Output

    • 7 Article in proceeding
    • 5 Journal article
    • 1 Book
    • 1 Book chapter

    A Humidity-Dependent Lifetime Derating Factor for DC Film Capacitors

    Wang, H., Reigosa, P. D. & Blaabjerg, F., Sep 2015, Proceedings of the 2015 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE Press, p. 3064-3068 5 p.

    Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

  • 16 Citations (Scopus)

    Degradation testing and failure analysis of DC film capacitors under high humidity conditions

    Wang, H., Nielsen, D. A. & Blaabjerg, F., Aug 2015, In : Microelectronics Reliability. 55, 9-10, p. 2007–2011 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  • 12 Citations (Scopus)

    Reliability of DC-link capacitors in power electronic converters

    Wang, H., 2015, Reliability of Power Electronic Converter Systems. Chung, H., Wang, H., Blaabjerg, F. & Pecht, M. (eds.). Institution of Engineering and Technology, Vol. 80. p. 59-82 24 p.

    Research output: Contribution to book/anthology/report/conference proceedingBook chapterResearchpeer-review