1000kV交流输电线路导线的电晕特性  

Corona Characteristics of Conductors for 1000 kV AC Transmission Lines

作　　者：陈勇[1] 万启发[1] 霍锋[1] 谷莉莉[1] 许中[1] 胡伟[1] 

机构地区：[1]国网武汉高压研究院

出　　处：《高电压技术》2007年第11期43-45,60,共4页High Voltage Engineering

基　　金：国家电网公司特高压输电关键技术研究项目(SGSC[2005]110)~~

摘　　要：电晕损耗是超高压及特高压线路损耗的重要组成部分,为深入研究不同导线方案的电晕特性,优化1000kV交流输电线路导线分裂形式及其子导线直径,分析了不同分裂形式和不同子导线直径的导线表面电位梯度、导线起晕电压、导线电晕损耗,研究了高海拔条件对导线起晕电压、导线电晕损耗的影响,对比了各导线方案对不同海拔地区的适应性,最终提出了平原和高海拔地区电晕损耗特性较优的导线配置方案,其有助于保证输电系统经济运行和节约工程投资。In order to optimize the conductor scheme of 1 000 kV AC transmission line, the corona characteristics of different conductor schemes should bee studied. This paper analyzes the conductor surface potential gradient, conductor critical coronal voltage, coronal power loss of 1 000 kV AC transmission line under different bundles and different diameters of conductor section, studies the influence of high altitude on conductor critical coronal voltage, coronal power loss, and compares the adjustability of all the conductor schemes to different altitudes. Conductor section and phase split way with good coronal performance at plain and high altitude region are put forward. Thereby the investment of 1 000 kV AC power engineering is saved.

关 键 词：特高压 电晕 电晕损耗 起晕电压 表面电位梯度 高海拔 

分 类 号：TM726[电气工程—电力系统及自动化]