| 220kV输电线路工频短路电流分布研究 |
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| 引用本文： | 王永明,倪孟华,路永玲,周文俊,喻剑辉,张秀霞.220kV输电线路工频短路电流分布研究[J].武汉大学学报(工学版),2011,44(3):383-387. |
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| 作者姓名： | 王永明 倪孟华 路永玲 周文俊 喻剑辉 张秀霞 |
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| 作者单位： | 1. 福建省厦门超高压输变电局,福建厦门,361004
2. 武汉大学电气工程学院,湖北武汉,430072 |
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| 摘 要： | 针对某220kV雷击闪络频发线路,希望能够通过测量工频短路电流和雷电流参数实现故障杆塔准确定位.为解决这一实际问题,在电路理论基础上采用ATP-EMTP及Matlab对短路电流在杆塔-避雷线中的分布特征及影响因素进行了研究.通过对比分析故障录波和仿真波形,验证了所建模型的正确性,同时该研究对于避雷线热稳定性的校验、选型,故障塔电位上升,故障塔定位,通信线路的电磁干扰及电力网络经济设计等研究具有重要意义.
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| 关 键 词： | 输电线路 短路故障 分流系数 电流分布 电路模型 |
Research on distribution of working frequency short-circuit current of 220 kV transmission lines |
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| WANG Yongming,NI Menghua,LU Yongling,ZHOU Wenjun,YU Jianhui,ZHANG Xiuxia.Research on distribution of working frequency short-circuit current of 220 kV transmission lines[J].Engineering Journal of Wuhan University,2011,44(3):383-387. |
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| Authors: | WANG Yongming NI Menghua LU Yongling ZHOU Wenjun YU Jianhui ZHANG Xiuxia |
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| Affiliation: | WANG Yongming1,NI Menghua1,LU Yongling2,ZHOU Wenjun2,YU Jianhui2,ZHANG Xiuxia1(1.Bureau of Extra-High Voltage Transmission and Substation of Xiamen,Xiamen 361004,China,2.School of Electrical Engineering,Wuhan University,Wuhan 430072,China) |
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| Abstract: | For an actual 220 kV transmission line which was striked frequently,we hope that flashover tower can be positioned by measuring parameters of short-circuit current and lightning current.In order to solve this problem,based on circuit theory this paper uses electromagnetic transient analysis program ATP-EMTP and Matlab to simulate and analyze distribution of short-circuit current and factors which affect the distribution.By comparing recorded waveforms with simulation waveforms,the correctness of the model i... |
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| Keywords: | transmission line short-circuit fault shunt coefficient current distribution circuit model |
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