Lightning transient analysis in wind turbine blades

Anna Candela Garolera, Joachim Holbøll, Søren Find Madsen

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    Abstract

    The transient behavior of lightning surges in the lightning protection system of wind turbine blades has been investigated in this paper. The study is based on PSCAD models consisting of electric equivalent circuits with lumped and distributed parameters involving different lightning current waveforms. The aim of the PSCAD simulations is to study the voltages induced by the lightning current in the blade that may cause internal arcing. With this purpose, the phenomenon of current reflections in the lightning down conductor of the blade and the electromagnetic coupling between the down conductor and other internal conductive elements of the blade is studied. Finally, several methods to prevent internal arcing are discussed in order to improve the lightning protection of the blade.
    Original languageEnglish
    Title of host publicationProceedings of International Conference on Power Systems Transients
    Number of pages7
    Publication date2013
    Publication statusPublished - 2013
    EventInternational Conference on Power Systems Transients - Vancouver, British Columbia, Canada
    Duration: 18 Jun 201320 Jun 2013

    Conference

    ConferenceInternational Conference on Power Systems Transients
    Country/TerritoryCanada
    CityVancouver, British Columbia
    Period18/06/201320/06/2013

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