重冰区覆冰对同塔双回交流输电线路参数的影响研究  

Influence of Icing on Parameters of Tower Double Circuit AC Transmission Lines in Heavy Icing Area

作　　者：魏延勋 朱清海[1] 肖致黔 王楠 周野 

机构地区：[1]贵州电网公司六盘水供电局,贵州六盘水553001 [2]贵州电力设计研究院,贵阳550002

出　　处：《绝缘材料》2015年第10期64-66,71,共4页Insulating Materials

摘　　要：为研究重冰区覆冰对交流输电线路参数的影响,分析了线路覆冰对弧垂的影响以及弧垂对线路参数的影响。在MATLAB环境下,对同塔双回交流输电线路利用线路参数计算软件仿真验证弧垂变化对线路参数的影响。结果表明:覆冰对零序参数有较大影响,实际应用中需考虑该影响因素,在覆冰较厚情况下应对零序参数进行修正。To study the influence of heavy icing area on the parameters of AC transmission lines, we ana- lyzed the effects of transmission line icing on the sag and the sag on the transmission line parameters. In the MATLAB environment, the effects of sag change on the line parameters were verified by using the line parameters calculation simualtion software for the tower double circuit AC transmission lines. The results show that the influence of icing on the zero sequence parameters is great. In the practical application, the zero sequence parameters should be corrected when the icing is thick.

关 键 词：输电线路 覆冰 弧垂 零序参数 

分 类 号：TM752.1[电气工程—电力系统及自动化] TM752.5