风力发电机机舱新型接闪系统防护效能评估  

Evaluating the Protection Efficiency of a New Air-Termination System for Wind Generator Cabins

作　　者：吴永鹏 王甜甜 于雪原 杨航 何相勇 WU Yongpeng;WANG Tiantian;YU Xueyua;YANG Hang;HE Xiangyong(CRRC Shandong Wind Power Co.,Ltd.,Jinan,Shandong Province,250022 China;Xi'an Airborne Electromagnetic Technology Co.,Ltd.,Xi'an,Shaanxi Province,710199 China)

机构地区：[1]中车山东风电有限公司,山东济南250022 [2]西安爱邦电磁技术有限责任公司,陕西西安710199

出　　处：《科技资讯》2024年第6期95-98,151,共5页Science & Technology Information

摘　　要：针对风力发电机复材机舱接闪系统防护效能评估中存在的滚球法适用受限、被保护对象结构与分布复杂的问题,结合风电场雷电环境特点,建立了两种接闪设计方案的数值模型,计算了多种先导起点位置条件下的电场分布;从表面电场、附着区域及等电势覆盖区域3个关键影响因素出发,比较了两种设计方案的防护效果,结果表明:该方法能够更加准确评估防护效能,可有效支持复杂系统的雷电防护的精细化设计。In order to solve the problems of the limited application of the rolling ball method and the complex structure and distribution of the protected object in the evaluation of the protection efficiency of the airtermination system of the composite cabin of the wind generator,this paper establishes the numerical models of two air-termination design schemes in combination with the characteristics of the lightning environment in the wind farm,calculates electric field distribution under the conditions of multiple pilot starting positions,and compares the protection effect of the two design schemes from three key influence factors:the surface electric field,the adhesion area and the equal potential coverage area.Results show that this method can evaluate protection efficiency more accurately,and effectively support the fine design of lightning protection for complex systems.

关 键 词：防护效能 评估方法 接闪系统 风力发电机组 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]