交流特高压线路冰闪故障分析及绝缘配置建议  

Icing Flashover Analysis and Insulation Configuration Suggestion of UHVAC Transmission Lines

作　　者：周唯 李显鑫[2] 李澄宇 

机构地区：[1]西南电力设计院,成都市610021 [2]国网北京经济技术研究院,北京市102209

出　　处：《电力建设》2015年第4期77-82,共6页Electric Power Construction

摘　　要：覆冰闪络是造成重覆冰区输电线路跳闸故障的重要原因。在我国海拔比较高的地区,尤其是在水系流域发达、地形复杂的山区,冰闪事故发生率相对较高。该文根据已建特高压交流试验示范工程输电线路的覆冰闪络情况及科研单位的相关试验数据,总结了特高压交流试验示范工程覆冰闪络特性和防冰闪的技术要点,并根据覆冰闪络试验提出覆冰绝缘配置原则,为重覆冰区绝缘配置提供参考数据,从而推进重冰区特高压交流线路杆塔设计水平,提高特高压电网安全运行的可靠性。Icing flashover is an important cause of icing transmission lines＇ trip fault. In China,the relatively high elevation areas,especially in the mountain areas w ith developed river basin and complex terrain,has a relatively high rate of icing flashover accident. According to the icing flashover of transmission lines in existing UHVAC demonstration project and the relevant test data of scientific research units,this paper summarized the characteristics of icing flashover and the technical points of anti-icing flashover in UHVAC demonstration projects. According to the icing flashover test,the configuration principle of icing insulation w as proposed,w hich could provide reference data for icing insulation configuration,strengthen the tow er design in UHVAC transmission lines,and improve the reliability of safe operation of UHV pow er grid.

关 键 词：特高压(UHV) 交流输电线路 覆冰闪络 绝缘配置 

分 类 号：TM75[电气工程—电力系统及自动化]