中国电力2017，Vol.50Issue(7)：180-184,5.DOI:10.11930/j.issn.1004-9649.2017.07.180.05
考虑杆塔等效半径变化的高杆塔雷击暂态特性分析
Analysis on the High Transmission Tower's Transient Characteristic Caused by Lightning Stroke Considering the Impact of Equivalent Radius
熊俊辉 1王仲奕 2王鹏 2刘星廷 2赵阳2
作者信息
- 1. 国网江西省电力公司南昌供电分公司,江西南昌 330002
- 2. 西安交通大学电气工程学院,陕西西安 710049
- 折叠
摘要
Abstract
The transient process caused by lightning stroke to the top of high transmission tower is of great importance in the design of the application of the transmission line,line insulator and anester.In this paper the existing surge impedance models for transmission towers home and abroad are introduced in brief,to improve the model,on this basis the tower body is divided into different pieces,considering the impact of equivalent radius and then analysis the influence of lightning propagation.Through the contrastive analysis of the segments of the tower,the lighting current waveform,and the amplitude of lighting current,and surge impedance effect on the transient characteristic of the tower,combining theoretical analysis,from which we can find that the subdivision of the tower will reduce the overvoltage and prolong the transient process.The conclusion is available for reference to the design of high transmission tower.关键词
杆塔/波阻抗模型/雷击/暂态分析Key words
tower/surge impedance model/lighting/transient analysis分类
信息技术与安全科学引用本文复制引用
熊俊辉,王仲奕,王鹏,刘星廷,赵阳..考虑杆塔等效半径变化的高杆塔雷击暂态特性分析[J].中国电力,2017,50(7):180-184,5.
