Calculation of Transient Potential Rise on the Wind Turbine Struck by LightningReport as inadecuate




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The Scientific World Journal - Volume 2014 2014, Article ID 213541, 8 pages -

Research ArticleNational Active Distribution Network Technology Research Center, School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China

Received 20 June 2014; Revised 23 July 2014; Accepted 23 July 2014; Published 31 August 2014

Academic Editor: Rui C. Marques

Copyright © 2014 Zhang Xiaoqing. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A circuit model is proposed in this paper for calculating the transient potential rise on the wind turbine struck by lightning. The model integrates the blade, sliding contact site, and tower and grounding system of the wind turbine into an equivalent circuit. The lightning current path from the attachment point to the ground can be fully described by the equivalent circuit. The transient potential responses are obtained in the different positions on the wind turbine by solving the circuit equations. In order to check the validity of the model, the laboratory measurement is made with a reduced-scale wind turbine. The measured potential waveform is compared with the calculated one and a better agreement is shown between them. The practical applicability of the model is also examined by a numerical example of a 2 MW Chinese-built wind turbine.





Author: Zhang Xiaoqing

Source: https://www.hindawi.com/



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