Lightning attachment to wind turbine surfaces affected by internal blade conditions

Anna Candela Garolera, Joachim Holboell, Soren Find Madsen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    The efficiency of the blade lightning protection system depends to a great extend on the effectiveness of the receptor to intercept the lightning discharge. When the blade is exposed to a high electric field, streamers are mainly initiated from the receptor surface, but lightning attachment on the blade surface instead of the receptor is also possible, with the risk of damages in the composite structure as a consequence. The present paper focuses on electrical fields and streamer activity in connection to conductive components inside a wind turbine blade when a downward leader is approaching the wind turbine. High voltage tests have been carried out to study the development of streamers in conductive components inside a fiberglass structure, and the results have been correlated with the simulations of the electric field performed using Finite Element Method. Finally, potential applications of the results of this study are discussed.
    Original languageEnglish
    Title of host publicationProceedings of 2012 International Conference on Lightning Protection
    PublisherIEEE
    Publication date2012
    ISBN (Print)9781467318983
    DOIs
    Publication statusPublished - 2012
    Event2012 International Conference on Lightning Protection (ICLP) - Vienna University of Technology, Vienna, Austria
    Duration: 2 Sept 20127 Sept 2012

    Conference

    Conference2012 International Conference on Lightning Protection (ICLP)
    LocationVienna University of Technology
    Country/TerritoryAustria
    CityVienna
    Period02/09/201207/09/2012

    Keywords

    • Attachment process
    • Lightning
    • Lightning protection
    • Wind turbine blade

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