| 西北地区750kV输电线路4kV/m等值线分布分析 |
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| 引用本文： | 郭留明,马学礼,王海亭,黄显昌,雷佳明.西北地区750kV输电线路4kV/m等值线分布分析[J].青海电力,2020,39(1):7-11. |
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| 作者姓名： | 郭留明 马学礼 王海亭 黄显昌 雷佳明 |
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| 作者单位： | 中国电力工程顾问集团西北电力设计院有限公司,陕西西安710075;国网青海省电力公司,青海西宁810008 |
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| 摘 要： | 为分析西北地区750 kV输电线路地面4 kV/m等值线分布特征,根据悬链线方程建立气象和档距等参数的三维工频电场计算模型,分析单回与同塔双回输电线路线下4 kV/m等值线分布特征及大于4 kV/m区域占输电线路评价范围的占比;对比分析导线对地高度、单回导线布置形式和双回相序排列方式等对4 kV/m等值线分布特征的影响。
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| 关 键 词： | 750 kV输电线路 4kV/m等值线 悬链线方程 相序排列方式 |
Distribution Analysis of the 4kv/m Contour Lines of the 750 kV Power Transmission Lines in Northwest China |
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| GUO Liuming,MA Xueli,WANG Haiting,HUANG Xianchang,LEI Jiaming.Distribution Analysis of the 4kv/m Contour Lines of the 750 kV Power Transmission Lines in Northwest China[J].Qinghai Electric Power,2020,39(1):7-11. |
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| Authors: | GUO Liuming MA Xueli WANG Haiting HUANG Xianchang LEI Jiaming |
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| Abstract: | Based on the catenary equation,a 3D power frequency electrical field calculation model is built in this paper with meteorological parameters,line span and other parameters,the distribution characteristics of the 4 kV/m contpous for single circuit and double circuit over Same tower lines and the ratio of the contours larger than 4 kV/m in the all evaluted power transmission lines anre analyzed.And the effect of these factors to the distribution characteristics of the 4 kV/m contpous is analyzed such as the conductor’s grond height,single circuit conductor arrangement,the phase order of the double circuit line and others. |
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| Keywords: | 750 kV power transmission line 4kV/m contour catenary equation phase order arrangement |
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