| 高海拔地区500kV线路中相V串优化 |
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| 引用本文： | 江全才,汪俊枭,邱爽,阴酉龙,朱建雄,汪旭旭.高海拔地区500kV线路中相V串优化[J].水电能源科学,2015,33(6):178-181. |
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| 作者姓名： | 江全才 汪俊枭 邱爽 阴酉龙 朱建雄 汪旭旭 |
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| 作者单位： | 三峡大学 a. 电气与新能源学院； b. 经济与管理学院， 湖北 宜昌 443002 |
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| 基金项目： | 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) |
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| 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。
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| 关 键 词： | 高海拔 500 kV线路 金具优化 有限元分析 |
Optimization of V Shape Insulator Strings on 500 kV Line in High Altitude Area |
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| Abstract: | Because of the thin air at the high altitude area, the corona phenomenon of transmission line fitting deserves 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 distribution of insulator strings and surface field strength of grading ring are obtained under different pipe diameters and ring diameters. According to the corrected formula of altitude, we have given suggestions for optimization design of V shape fitting in terms of 18.2 kV/cm surface control field strength limits. |
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