| 电力系统接地短路故障中零模分量的依频关系分析 |
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| 引用本文： | 李友军,徐丽娜.电力系统接地短路故障中零模分量的依频关系分析[J].电力系统保护与控制,2007,35(15):4-8,23. |
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| 作者姓名： | 李友军 徐丽娜 |
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| 作者单位： | 国家电力公司电力自动化研究院 江苏南京210003(李友军)，江苏省苏北供水局 江苏南京210029(徐丽娜) |
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| 摘 要： | 通过介绍零模的概念,从各个方面分析了零模行波波头依频变化的关系。得到了零模波头的频谱曲线、零模行波传播的衰减系数依频关系曲线、故障距离和零模波头中最大频率分量的关系曲线以及零模波速度和频率的关系曲线,并就分别利用零模波头中最大频率分量和零线模波速差法的故障测距方法做了简要的分析。
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| 关 键 词： | 零模分量 频率分析 零模行波 故障定位 |
| 文章编号： | 1003-4897（2007）15-0004-05 |
| 修稿时间： | 2007-01-042007-05-24 |
Relationship between earth mode surge and frequency on power system earth fault |
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| LI You-jun, XU Li-na.Relationship between earth mode surge and frequency on power system earth fault[J].Power System Protection and Control,2007,35(15):4-8,23. |
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| Authors: | LI You-jun XU Li-na |
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| Affiliation: | 1. Nanjing Automation Research Institute of State Power Company, Nanjing 210003, China; 2. Water Supply Bureau of North Jiangsu, Nanjing 210029, China |
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| Abstract: | Based on the discussion about earth mode concept, the relationship between earth mode surge and frequency is described. The curve of earth mode surge frequency spectrum, the curve of earth mode surge transmition coefficient via frequency, the curve between maximum frequency of earth mode surge and fault location, and the curve between earth mode wave-velocity and frequency are drawned and discussed. The fault location method using earth mode surge is briefly discussed. |
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| Keywords: | earth mode component frequency analysis earth mode travelling wave fault location |
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