中国电机工程学报2018，Vol.38Issue(2)：653-662,10.DOI:10.13334/j.0258-8013.pcsee.162025
基于雷电上行先导起始物理机制的风机叶片雷击概率评估模型
Probabilistic Risk Assessment of Lightning Strike on Wind Turbine Blades Based on the Physical Mechanism of Lightning Upward Leader Inception
摘要
Abstract
The damage of wind turbine (WT) blade caused by lightning strike is a serious threat to wind farm.Traditional methods cannot calculate the lightning strike probability of any location on the WT blade surface.Besides,there are not any developed theories to instruct the design of WT blade lightning protection system (LPS).A probabilistic risk assessment (PRA) of lightning strike on WT blade was established according to the proposed method of calculating lightning strike probability of any location on WT blade surface,based on the physical mechanism of upward leader (UL) inception.The lightning strike probability distribution of 1.5MW WT was analyzed,including the different positions of WT blade,different lateral distance and different kinds of receptors.The reliability of the PRA was validated by experimental results.The results show that,the protection area of receptors is dissymmetrical and changes according to the angle of blade.The lateral distance influences the protection area directionally.The tip receptor works much better than the side receptors.The PRA can be used as the guideline of the design of WT blade LPS.关键词
风机叶片/雷击防护/雷击概率评估模型/接闪器/上行先导起始Key words
wind turbine blade/lightning protection/probabilistic risk assessment of lightning strike/receptor/inception of upward leader分类
信息技术与安全科学引用本文复制引用
郭子炘,李庆民,任瀚文,张黎,王国政,马宇飞,闫江燕,SIEW Wah Hoon,方致阳..基于雷电上行先导起始物理机制的风机叶片雷击概率评估模型[J].中国电机工程学报,2018,38(2):653-662,10.基金项目
国家自然科学基金项目(51420105011) （51420105011）
中央高校基本科研业务费专项资金资助(2016XS06).Project Supported by National Natural Science Foundation of China (51420105011) （2016XS06）
The Fundamental Research Funds for the Central Universities (2016XS06) （2016XS06）
