Effects of location, size and number of wind turbine receptors on blade lightning protection by voltage distribution analysis

2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI:10.1109/APAP.2011.6180587

H. Bagherian, H. Kazemi Karegar

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引用次数: 8

Abstract

Electric and magnetic fields generated by lightning cause a serious hazard to various systems. Nowadays, wind turbine installations with higher power capacity are increasing. Higher capacity requires higher height and so there is more probability of lightning strike. Blades are the most probable components to get struck by lightning. The most common lightning protection system for the blades consists of several metallic receptors on the blade's surface. Those are connected to the ground by metallic down-conductors placed inside the blade shell. In this paper, the influence of the receptors' configurations in protecting the blade against lightning strike is studied. For this purpose, an analysis procedure based on Finite Element Method (FEM) in COMSOL Multiphysics software environment is used. The voltage distribution around the blade is studied and simulated for various configurations of receptors. The obtained results are considered and the best configuration is investigated. The simulations are done on the blade model of a special wind turbine, which is “Vestas V47”.

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通过电压分布分析风力机感受器位置、大小和数量对叶片防雷的影响

雷电产生的电场和磁场对各种系统造成严重危害。目前，大功率风力发电机组的装机容量不断增加。更高的容量需要更高的高度，因此更有可能被雷击。叶片是最容易被闪电击中的部件。最常见的叶片防雷系统由叶片表面的几个金属感受器组成。它们通过放置在叶片外壳内的金属下导体与地面相连。本文研究了感受器结构对叶片抗雷击防护的影响。为此，采用了COMSOL Multiphysics软件环境下基于有限元法的分析程序。研究并模拟了不同结构的感受器叶片周围的电压分布。考虑了得到的结果，并研究了最佳配置。对一种特殊的风力发电机“Vestas V47”的叶片模型进行了仿真。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2011 International Conference on Advanced Power System Automation and Protection

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