| 架空线路分裂导线表面电位梯度的数值计算 |
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| 引用本文： | 张宇,郑伟,文武,阮江军. 架空线路分裂导线表面电位梯度的数值计算[J]. 高电压技术, 2005, 31(1): 23-24,37 |
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| 作者姓名： | 张宇 郑伟 文武 阮江军 |
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| 作者单位： | 1. 武汉大学电气工程学院,武汉,430072
2. 中南电力设计院,武汉,430072 |
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| 摘 要： | 用有限元法计算架空输电线路的电场可准确求得其导体表面的电位梯度。该法适于各类塔型和导线布置,克服了目前手册方法的不足。通过计算发现:分裂导体表面电位梯度随导体半径的增大而增大,随分裂间距的 增大而略有增大,随相间距离的增大而减小,当导线高度增加时,B、C相导体表面电位梯度减小而A相增大。
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| 关 键 词： | 架空线路 有限元 电位梯度 |
| 文章编号： | 1003-6520(2005)01-0023-02 |
Numerical Calculation of Electric Field Intensity on the Surface of Bundle Conductors of Overhead Transmission Lines |
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| ZHANG Yu,ZHENG Wei,WEN Wu,RUAN Jian gjun. Numerical Calculation of Electric Field Intensity on the Surface of Bundle Conductors of Overhead Transmission Lines[J]. High Voltage Engineering, 2005, 31(1): 23-24,37 |
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| Authors: | ZHANG Yu ZHENG Wei WEN Wu RUAN Jian gjun |
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| Affiliation: | ZHANG Yu1,ZHENG Wei2,WEN Wu1,RUAN Jian gjun1 |
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| Abstract: | The electric field intensity on surface of con ductors can be calculated accurately by applying FEM numerical method to the bun dle conductors of overhead lines. This method is suitable for all kinds of tower s and all arrangements of bundle conductors. It is found from the results of cal culation that, the electric field intensity on surface of bundle conductors beco mes higher, if the radius of conductors increase; it is increased moderately if bundle spacing is widened; it is decreased if distance between phases increase; when the height of conductors increase, the surface electric field intensity on B and C phases decreases but increases on A phase. |
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| Keywords: | overhead transmission line FEM electric field inten sity |
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