±800kV同塔双回输电线路离子流场的计算  

Calculation of ion flow field for ± 800 kV transmission line of double circuit on same tower

作　　者：李永明[1] 柴贤东[1] 张淮清[1] 王勤[2] 郭大勇[2] 祝言菊[2] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044 [2]合肥供电公司超高压工作区,安徽合肥230000

出　　处：《电力自动化设备》2013年第6期134-138,共5页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(50907075)~~

摘　　要：考虑双回线路结构对导线起晕电场的影响,采用基于Deutsch假设的解析法,计算分析了线路结构参数对地面电场和离子流密度的影响,得到了最优的导线排布方式。仿真结果表明,在相同导线尺寸与同等架设高度下,双回线路电磁环境明显优于单回线路,且通过合理控制线路参数可以使导线表面电场降低到起晕电场以下,空间离子流密度为0。The analytical method based on Deutsch assumption is adopted to calculate and analyze the effect of structural parameters of transmission line on the ground electric field and ion current density,which considers the effect of the double circuit structure of transmission line on the corona-starting electric field.Therefore the optimal conductor arrangement is obtained.Simulation results show that,with the same conductor size and height,the electromagnetic environment of double circuit line is obviously superior to that of single line and,by the reasonable control of circuit parameters,the conductor surface field can be depressed below the corona-starting electric field and ion current density to 0.

关 键 词：特高压输电 同塔双回 电场 离子流密度 

分 类 号：TM726[电气工程—电力系统及自动化]