雷电拦截技术在海上风电场防雷工程中的应用  

The Application of Lightning Interception Technology in Lightning Protection Engineering of Offshore Wind Farms

作　　者：段少俊 张超 郭仁宏 孔令锦 杨晖 DUAN Shaojun;ZHANG Chao;GUO Renhong;KONG Lingjin;YANG Hui

机构地区：[1]广东省风力发电有限公司湖南分公司,湖南长沙410000 [2]中广核汕尾新能源有限公司,广东汕尾516500 [3]广东粤电阳江海上风电有限公司,广东阳江510630 [4]广东佛山顺德伦教金盾防雷技术发展有限公司,广东佛山528308 [5]广州市气象局,广东广州510530

出　　处：《电力系统装备》2024年第5期19-22,64,共5页Electric Power System Equipment

摘　　要：海上风电区域通常为雷击密集区,海上风电场的风力发电机组(以下简称“风机”)对直接雷击的防护主要采用叶片接闪器,并按照保护角法(滚球法)对其保护范围进行计算。然而,风机遭雷击损坏的事故依然频繁发生。2022年,珠海璧青湾海风场应用雷电拦截新技术,对璧青湾海风场开展了专项课题研究,经历了近两年雷暴期的考验,拦截了8次雷击,首次实现了海上风电场0雷害的目标。文章以珠海璧青湾海风场为例,总结了区域防雷理论中雷电拦截技术应用的主要方法,包括过顶雷击和侧面雷击两种空间形态对海上风电场的影响,雷击路径的确定、雷击路径与风电场的相互关系、周围地理环境对雷击路径的影响、电场强度梯度及其保护范围等多个主要技术环节。结论表明,区域防雷为系统工程,海上风电场预防直接雷击损坏风力发电机的雷电拦截技术方法可供技术人员参考。Offshore wind power areas are often areas with high lightning strikes.The wind turbines in offshore wind farms(hereinafter referred to as“wind turbines”)mainly use blade lightning arresters to protect against direct lightning strikes,and their protection range is calculated according to the protection angle method(rolling ball method).However,accidents of wind turbines being damaged by lightning strikes still occur frequently.In 2022,Zhuhai Biqingwan Sea Wind Farm applied new lightning interception technology and conducted a special research project on the Biqingwan Sea Wind Farm.After experiencing the test of thunderstorms in the past two years,it intercepted 8 lightning strikes and achieved the goal of zero lightning damage for offshore wind farms for the first time.This article takes the Biqingwan offshore wind farm in Zhuhai as an example to summarize the main methods of lightning interception technology application in regional lightning protection theory,including the impact of two spatial forms of overhead lightning strikes and side lightning strikes on offshore wind farms,the determination of lightning strike paths,the relationship between lightning strike paths and wind farms,the influence of surrounding geographical environment on lightning strike paths,the gradient of electric field strength and its protection range,and multiple main technical links.Obviously,regional lightning protection is a systematic project,and the lightning interception technology for preventing direct lightning damage to wind turbines in offshore wind farms can be used as a reference for technical personnel.

关 键 词：海上风电场 风力发电机 区域防雷 雷电拦截技术 0雷害 

分 类 号：TM614[电气工程—电力系统及自动化]