±800kV特高压直流输电线路极间距离优化研究  

Research on Optimization of Space between Polar Conductors for ±800 kV UHVDC Transmission Line

作　　者：郝阳[1] 王中阳 杨敏[1] 薛永锋[1] 李小亭[1] 许苗 

机构地区：[1]西北电力设计院,陕西西安710075 [2]国家电网西北规划评审中心,陕西西安710075

出　　处：《电网与清洁能源》2012年第1期49-53,共5页Power System and Clean Energy

摘　　要：对±800 kV特高压直流输电线路的极间距离优化进行了研究,通过分析最大合成电场强度、最大离子流密度、无线电干扰、可听噪声等电磁环境参数随线路极间距离的变化规律,得出目前的±800 kV特高压直流输电线路22 m极间距离具备优化空间,然后基于电磁环境、空气间隙、V串夹角、塔头布置等多方面因素的优化,将极间距离由传统22 m优化至19 m,并论述了极间距离优化的巨大经济效益。This paper studies optimization of the space between polar conductors. Based on the calculation and analysis of the electromagnetic environment factors, such as the maximum electric field strength, the maximum ion current density, radio interference and audible noise in different spaces between polar conductors, it is found that the current 22 m space of the ±800 kV UHVDC Transmission Line can be reduced. Then, based on optimization of multiple factors such as electro-magnetic environment, air gap and arrangement of V type insulators and conductors on steel towers, the space between polar conductors is reduced from 22 m to 19 m. Substantial economical benefits of the space optimization is also described.

关 键 词：特高压直流 极间距离 电磁环境 输电线路 

分 类 号：TM753[电气工程—电力系统及自动化]