基于Ansoft Maxwell的风机塔筒雷电电磁环境分析  

The Analysis of Lightning Electromagnetic Environment of Wind Turbine Tower Tube Based on Ansoft Maxwell

作　　者：王艳姣[1] 张金生 王奔[1] 王宝归 WANG Yanjiao;ZHANG Jinsheng;WANG Ben;WANG Baogui(Southwest Jiaotong University,Chengdu 610031,China;Training Center of State Grid Tianjin Electric Power Company,Tianjin 300181,China;CSR Zhuzhou Institute Co.,Ltd.,Zhuzhou 412001,China)

机构地区：[1]西南交通大学,四川成都610031 [2]国网天津市电力公司培训中心,天津300181 [3]中车株洲电力机车研究所有限公司,湖南株洲412001

出　　处：《电工技术》2018年第15期12-15,共4页Electric Engineering

摘　　要：雷电击中风电机组后,强大的雷电流沿着塔筒流入大地,在塔筒内部产生电磁脉冲,对塔筒内部的电子器件造成强烈的电磁干扰;另外,感应过电压和过电流会入侵塔内的电子设备,影响风电机组的安全稳定运行。为了研究风电机组塔筒的雷电电磁环境,采用有限元分析软件Ansoft Maxwell建立塔筒模型,得到塔筒周围的磁场分布,然后根据分析结果,提出相应防雷保护设计。仿真结果表明,采用Ansoft Maxwell得到的塔筒雷电电磁环境可为防雷设计提供一定的理论依据。When wind turbine is struck by lightning, a strong lightning current would ftow into the ground atong the tower tube and generale electromagnetic pulse in the tower. The electromagnetic pulse causes severe electromagnetic inlerfer ence to electronic devices in the tower tube. In addition, induced over-vohage and over current could invade electronic e quipments in the tower and influence the safe and slable operation of wind turbines. In order to study the lightning electro magnetic environment of the wind turbine tower, the finite element analysis software Ansoft Maxwell is used to establish the tower tube model, and the magnetic field distribmion around the tower tube is obtained. Then the corresponding lightning protection design is presented according to the analysis results. The results show that interior lighlning electromag netic environment based on Ansoft Maxwell provides certain theoretical basis for the lightning protection design.

关 键 词：塔筒 雷电电磁环境 ANSOFT MAXWELL 防雷保护设计 

分 类 号：TM153[电气工程—电工理论与新技术]