Protection of interconnected wind turbines against lightning effects: Overvoltages and electromagnetic transients study

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• 作者：R.B. Rodrigues^a ; V.M.F. Mendes^a ; J.P.S. Catalã ; o^b ; ^c ; ^{catalao@ubi.pt}
• 关键词：Electromagnetic transients ; Lightning protection ; Wind energy
• 刊名：Renewable Energy
• 出版年：2012
• 期刊代码：45_09601481
• 类别：pw
• 出版时间：October, 2012
• 卷：46
• 期：Complete
• 页码：232-240
• 文件大小：1277 K

摘要

This paper is concerned with direct or indirect lightning strokes on wind turbines, studying overvoltages and electromagnetic transients. As wind power generation undergoes rapid growth, lightning damages involving wind turbines have come to be regarded with more attention. With the aim of providing further insights into the lightning protection of wind turbines, describing the transient behavior in an accurate way, the restructured version (RV) of the electromagnetic transients program (EMTP) is used in this paper. A new case study is presented with two interconnected wind turbines, considering a direct lightning stroke to the blade or considering that lightning strikes the soil near a tower. Comprehensive computer simulations with EMTP-RV are presented and conclusions are duly drawn.