摘要
雷电这一自然现象对风力发电机组安全运行带来极大威胁,在风电叶片中预埋接闪器是目前广泛应用的一种雷电防护技术,而对接闪器受大气腐蚀影响、表面覆盖有腐蚀产物之后的接闪性能鲜有研究。建立接闪器腐蚀前后的雷电流传导模型,通过电、热耦合的多物理场仿真,研究接闪器腐蚀前后的雷击损伤变化及其机理,为后续海上风电接闪器的防雷设计和防腐蚀设计提供参考。
Lightning is a natural phenomenon that poses a great threat to the safe operation of wind turbines.Pre-embedded air-termination system in blade is a widely used lightning protection technology.However,there are few studies on the lightning protection performance of air-termination system after it is affected by atmospheric corrosion and its surface is covered with corrosion products.This study establishes a lightning current conduction model before and after the corrosion of air-termination system.Through electrical and thermal coupling multi-physical field simulation,the changes of lightning damage and its mechanism before and after corrosion of air-termination system are investigated to provide a reference for the subsequent lightning protection and anti-corrosion design of offshore wind turbine air-termination systems.
作者
薛浩鹏
刘孟
杜鸣心
曾明伍
罗洋
XUE Haopeng;LIU Meng;DU Mingxin;ZENG Mingwu;LUO Yang(Dongfang Electric<Tianjin>Wind Turbine Blade Engineering Co.,Ltd.,Tianjin 300480,China;Xi'an Aibang Electromagnetic Technology Co.,Ltd.,Xi’an 710077,Shaanxi Province,China;Dongfang Electric Wind Power Co.,Ltd.,Deyang 618000,Sichuan Province,China)
出处
《天津科技》
2020年第8期47-50,54,共5页
Tianjin Science & Technology
基金
四川省科技厅重点研发项目“大型风力机叶片气动设计关键技术研究”(2019YFG0018)。
关键词
风力发电机
雷击防护
腐蚀防护
雷击损伤
wind turbine
lightning protection
corrosion protection
lightning damage
