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Energies 2012, 5(7), 2545-2558; doi:10.3390/en5072545

Analysis of Transient Phenomena Due to a Direct Lightning Strike on a Wind Energy System

1 Engineering Superior Institute of Lisbon, R. Conselheiro Emídio Navarro, Lisbon 1950-062, Portugal 2 University of Beira Interior, R. Fonte do Lameiro, Covilha 6201-001, Portugal 3 Center for Innovation in Electrical and Energy Engineering, Technical Superior Institute, Av. Rovisco Pais, Lisbon 1049-001, Portugal
* Author to whom correspondence should be addressed.
Received: 29 May 2012 / Revised: 27 June 2012 / Accepted: 9 July 2012 / Published: 17 July 2012
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This paper is concerned with the protection of wind energy systems against the direct effects of lightning. As wind power generation undergoes rapid growth, lightning damages involving wind turbines have come to be regarded as a serious problem. Nevertheless, very few studies exist yet in Portugal regarding lightning protection of wind energy systems using numerical codes. A new case study is presented in this paper, based on a wind turbine with an interconnecting transformer, for the analysis of transient phenomena due to a direct lightning strike to the blade. Comprehensive simulation results are provided by using models of the Restructured Version of the Electro-Magnetic Transients Program (EMTP), and conclusions are duly drawn.
Keywords: wind turbines; lightning; transients; overvoltages protection wind turbines; lightning; transients; overvoltages protection
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Rodrigues, R.B.; Mendes, V.M.F.; Catalão, J.P.S. Analysis of Transient Phenomena Due to a Direct Lightning Strike on a Wind Energy System. Energies 2012, 5, 2545-2558.

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