Numerical Study of Lightning Protection of Wind Turbine Blade with De-Icing Electrical Heating System

Yang Zhao, Xi Wang, Qibin Zhou, Zhenxing Wang and Xiaoyan Bian
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Yang Zhao: School of Atmospheric Physics, Nanjing University of Information Science & Technology, Nanjing 210044, China
Xi Wang: Electrical Engineering College, Shanghai University of Electric Power, Shanghai 200090, China
Qibin Zhou: School of Mechatronics Engineering and Automation, Shanghai University, Shanghai 200444, China
Zhenxing Wang: State Grid Shanghai Municipal Electric Power Company, Shanghai 200122, China
Xiaoyan Bian: Electrical Engineering College, Shanghai University of Electric Power, Shanghai 200090, China

Energies, 2020, vol. 13, issue 3, 1-11

Abstract: In order to solve the problem of icing on the surface of wind turbine blade, a heating system that includes a carbon fiber net (CFN) and power cables is proposed recently. When lightning strikes at the blade with a de-icing heating system, the blade and its heating system are more easily damaged due to the overvoltage between the lightning protection system (LPS) of the blade and the heating system. In this paper, the models of a wind turbine blade with the de-icing heating system are established by Alternative Transients Program/Electromagnetic Transients Program (ATP–EMTP) and the accuracy of models is verified through an experiment. With these models, the influence of lightning current, surge protective devices (SPDs) and earthing resistance of wind turbine are analyzed by calculating the voltage between the down-conductor of the LPS and the heating system. The results show that the voltage is positively correlated with lightning current amplitude and negatively correlated with the front time of lightning current. SPDs are quite useful to reduce the voltage, and an optimal installation scheme of SPDs is obtained by simulation. It is noted that voltage decreases slightly with the increasing earthing resistance with the optimal installation scheme of SPDs.

Keywords: wind turbine blade; de-icing electrical heating system; carbon fiber net (CFN); lightning (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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