风对±800kV直流输电线路无线电干扰的影响研究  

Research of Impact of Wind on Radio Interference Due to ±800kV DC Transmission Line

作　　者：赵鹏[1] 郭剑[1] 杨勇[1] 赵录兴[1] 赵龙[1] 

机构地区：[1]中国电力科学研究院,北京市海淀区100192

出　　处：《电网技术》2012年第4期28-32,共5页Power System Technology

摘　　要：高压直流输电线路电晕产生的无线电干扰与导线所加电压、导线布置形式有关,还与天气情况有关,特别是风对无线电干扰的影响较大。文章分析了高压直流输电线路无线电干扰的机理,在国内首次进行了特高压直流等尺寸试验线路无线电干扰的长期测试,研究了特高压直流输电线路的无线电干扰特性,得出了风对无线电干扰的影响规律。直流输电线路电晕产生的无线电干扰随从负极指向正极的风速增大而增大。The radio interference caused by HVDC power transmission lines is not only related to the voltage applied to the conductors and the arrangement of conductors, but also to the weather conditions, especially the wind greatly impacts on the radio interference. The mechanism of radio interference caused by HVDC power transmission line is analyzed. It is the first time in China to perform long-term testing and measurement of radio interference by UHVDC test line with actual sizes applied in UHVDC power transmission line and the radio interference characteristics of UHVDC power transmission line is researched, thus the law by which the wind impacts on radio interference is obtained. The strength of radio interference caused by DC corona resulted from UHVDC power transmission line becomes more intensive with the increase of wind speed when the wind blows from the negative polar conductor of UHVDC transmission line to its positive polar conductor.

关 键 词：特高压直流 直流电晕 无线电干扰 

分 类 号：TM85[电气工程—高电压与绝缘技术]