Dynamic striking distance and electrical geometry model of wind turbine blades based on lightning physics

Guozheng Wang, Li Zhang, Zixin Guo, Yufei Ma, Qingmin Li, Jiangyan Yan, Tong Zhao, Liang Zou, Wah Hoon Siew

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The damage of wind turbine blades suffered lightning strikes has been a key factor of the safe and reliable operation of wind farms. The electric geometrical model of wind turbine blades (EGMTB) was presented based on the traditional electric geometrical method and the physical process of lightning leader. The concept of dynamic striking distance was introduced and clarified the physical meaning of striking distance. And the calculation method of blade lightning protection system (LPS) efficiency was deduced. Finally, the effectiveness of EGMTB was validated by the long gap breakdown experiment of blades. The EGMTB was used to analyze the influence factors of blade LPS efficiency. It is indicated that the efficiency of blade LPS reduces with the decrease of lightning current and the angle between the blade and horizontal, and the efficiency of blade LPS can be improved by increasing the side lightning receptors. The EGMTB is intended to provide a theory for lightning protection design and evaluation of wind turbine blades.

Translated title of the contributionDynamic striking distance and electrical geometry model of wind turbine blades based on lightning physics
LanguageChinese
Pages6427-6436
Number of pages10
JournalZhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering
Volume37
Issue number21
DOIs
Publication statusPublished - 5 Dec 2017

Fingerprint

Lightning
Lightning protection
Wind turbines
Turbomachine blades
Physics
Geometry
Farms
Experiments

Keywords

  • efficiency of lightning protection system (LPS)
  • electric geometrical model
  • leader progression model
  • lightning protection
  • striking distance
  • wind turbine blade

Cite this

Wang, Guozheng ; Zhang, Li ; Guo, Zixin ; Ma, Yufei ; Li, Qingmin ; Yan, Jiangyan ; Zhao, Tong ; Zou, Liang ; Siew, Wah Hoon. / 基于雷电物理的风机叶片动态击距与 电气几何模型. 2017 ; Vol. 37, No. 21. pp. 6427-6436.
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abstract = "The damage of wind turbine blades suffered lightning strikes has been a key factor of the safe and reliable operation of wind farms. The electric geometrical model of wind turbine blades (EGMTB) was presented based on the traditional electric geometrical method and the physical process of lightning leader. The concept of dynamic striking distance was introduced and clarified the physical meaning of striking distance. And the calculation method of blade lightning protection system (LPS) efficiency was deduced. Finally, the effectiveness of EGMTB was validated by the long gap breakdown experiment of blades. The EGMTB was used to analyze the influence factors of blade LPS efficiency. It is indicated that the efficiency of blade LPS reduces with the decrease of lightning current and the angle between the blade and horizontal, and the efficiency of blade LPS can be improved by increasing the side lightning receptors. The EGMTB is intended to provide a theory for lightning protection design and evaluation of wind turbine blades.",
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Wang, G, Zhang, L, Guo, Z, Ma, Y, Li, Q, Yan, J, Zhao, T, Zou, L & Siew, WH 2017, '基于雷电物理的风机叶片动态击距与 电气几何模型' vol. 37, no. 21, pp. 6427-6436. https://doi.org/10.13334/j.0258-8013.pcsee.170080

基于雷电物理的风机叶片动态击距与 电气几何模型. / Wang, Guozheng; Zhang, Li; Guo, Zixin; Ma, Yufei; Li, Qingmin; Yan, Jiangyan; Zhao, Tong; Zou, Liang; Siew, Wah Hoon.

Vol. 37, No. 21, 05.12.2017, p. 6427-6436.

Research output: Contribution to journalArticle

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AU - Ma, Yufei

AU - Li, Qingmin

AU - Yan, Jiangyan

AU - Zhao, Tong

AU - Zou, Liang

AU - Siew, Wah Hoon

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AB - The damage of wind turbine blades suffered lightning strikes has been a key factor of the safe and reliable operation of wind farms. The electric geometrical model of wind turbine blades (EGMTB) was presented based on the traditional electric geometrical method and the physical process of lightning leader. The concept of dynamic striking distance was introduced and clarified the physical meaning of striking distance. And the calculation method of blade lightning protection system (LPS) efficiency was deduced. Finally, the effectiveness of EGMTB was validated by the long gap breakdown experiment of blades. The EGMTB was used to analyze the influence factors of blade LPS efficiency. It is indicated that the efficiency of blade LPS reduces with the decrease of lightning current and the angle between the blade and horizontal, and the efficiency of blade LPS can be improved by increasing the side lightning receptors. The EGMTB is intended to provide a theory for lightning protection design and evaluation of wind turbine blades.

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Wang G, Zhang L, Guo Z, Ma Y, Li Q, Yan J et al. 基于雷电物理的风机叶片动态击距与 电气几何模型. 2017 Dec 5;37(21):6427-6436. https://doi.org/10.13334/j.0258-8013.pcsee.170080