摘要
随着风力发电的供需日益增长,风力发电机越来越多地被安装在具有高土壤电阻率和高雷击发生率的次优地理位置,这使得风力发电机的防雷系统成为风电场设计的关键因素。有效的防雷系统不仅保证了风力发电机物理结构和运行控制人员的安全,还可保护风力发电机内部的电气控制系统,以实现风能的高效消纳。基于此,文中提出了一种适用于风电场的防雷系统有效性评估新方法,在风电场早期规划阶段采用所提评估方法,可减少雷击引起的WT停机时间,从而提高风机的发电量。考虑到接地系统在风电场防雷系统中起着至关重要的作用,文中还分析了影响接地系统设计的各种参数及因素。最后,通过仿真分析,文中给出了完整的风力发电机接地系统的全波电磁仿真结果,研究表明:所提方法可有效获取影响防雷系统有效性的因素,可极大降低雷击引起的风机停机时间。
With the increasing supply and demand of wind power,more and more wind turbine generators are in⁃stalled in sub⁃optimal geographical locations with high soil resistivity and high incidence of lightning strikes,which makes the lightning protection system of the wind turbine generator a key factor in the design of wind farms.The effec⁃tive lightning protection system not only ensures the physical structure of the wind turbine and safety of the operation and control operators,but also protects the electrical control system inside the wind turbine generator,so as to realize the efficient consumption of wind energy.On this basis,a new method for evaluating the effectiveness of lightning pro⁃tection system of wind farms is proposed in this paper.Adoption of the proposed evaluation method in the early plan⁃ning stage of wind farm can reduce downtime of wind turbine due to lightning strikes,thus improving the power gener⁃ation of wind turbine generator.Considering the important role of the lightning protection system of wind farm in the earthing system,various parameters and factors affecting grounding system design are analyzed.Finally,throughout the simulation analysis,the full wave electromagnetic simulation results of the wind turbine grounding system is giv⁃en in this paper.The research shows that the proposed method can effectively obtain the factors affecting the effective⁃ness of the lightning protection system,and can greatly reduce the downtime of the wind turbine generator caused by lightning strike.
作者
杨俊
程昱舒
陈安琪
宋欣睿
孙方霞
金朝阳
YANG Jun;CHENG Yushu;CHEN Anqi;SONG Xinrui;SUN Fangxia;JIN Chaoyang(State Grid Shanxi Electric Power Company,Taiyuan 030000,China;School of Artificial Intelligence Zhengzhou Railway Vocational and Technical College,Zhengzhou 451460,China;School of Electrical Engineering,Shandong University,Jinan 250100,China)
出处
《高压电器》
CAS
CSCD
北大核心
2022年第7期34-41,共8页
High Voltage Apparatus
基金
国家自然科学基金资助项目(51907106)。
关键词
接地系统
防雷系统
风力发电机
grounding system
lightning protection system(LPS)
wind turbine generator(WTGs)
