高海拔地区500kV线路中相V串优化  

Optimization of V Shape Insulator Strings on 500kV Line in High Altitude Area

作　　者：江全才[1] 汪俊枭[1] 邱爽[2] 阴酉龙 朱建雄[1] 汪旭旭[1] 

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443002 [2]三峡大学经济与管理学院,湖北宜昌443002

出　　处：《水电能源科学》2015年第6期178-181,共4页Water Resources and Power

基　　金：重庆市科学基金重点项目(035679);2002年高等学校博士学科点专项科研项目(20020183061)

摘　　要：高海拔地区空气稀薄,输电线路金具电晕现象较平原地区更为严重。以建塘500kV变电站和玉龙500kV变电站之间线路为例,应用Ansys有限元分析软件,计算了500kV交流单回线路中相V串金具电场和绝缘子串电位分布,获得了不同管径和环径的均压环配置下绝缘子串的电压分布、均压环表面场强结果,并根据海拔校正公式,按18.2kV/cm表面控制场强限值给出了V串金具优化设计建议,结果可供参考。Because of the thin air at the high altitude area, the corona phenomenon of transmission line fitting de- serves more attentions than plain area. Taking the transmission lines between Jiantang 500 kV substation and Yulong 500 kV substation for an example, the finite element analysis software Ansys is used to calculate the potential distribution of V shape fitting and insulator strings on 500 kV AC single loop-line. The voltage distrihution of insulator strings and sur- face field strength of grading ring are obtained under different pipe diameters and ring diameters. According to the correc- ted formula of altitude, we have given suggestions for optimization design of V shape fitting in terms of 18.2 kV/cm sur- face control field strength limits.

关 键 词：高海拔 500KV线路 金具优化 有限元分析 

分 类 号：TM15[电气工程—电工理论与新技术]