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| 中压配电网的故障测距实用化方法 | |
| 引用本文： | 郭俊宏,杨以涵,谭伟璞,孙建锋,游耀丽.中压配电网的故障测距实用化方法[J].电网技术,2006,30(8):76-80. |
| 作者姓名： | 郭俊宏 杨以涵 谭伟璞 孙建锋 游耀丽 |
| 作者单位： | 1. 华北电力大学,电气工程学院,北京市,昌平区,102206 2. 华北电网有限公司,北京市,宣武区,100053 3. 太原供电设计研究院,山西省,太原市,034000 |
| 摘 要： | 35kV、66kV中压配电网属于中性点非有效接地系统, 目前尚无很好的故障测距方法。针对其故障电流信号弱的特点,文章提了在线线测电压行波的双端故障测距方法。物理实验中利用电源线接触零电位线的方法模拟接地实验,同时高速采集卡对故障电压行波进行同步循环采集,实验结果证明了电压行波作为故障测距信号的有效性和所提故障定位方法的有效性。 |
| 关 键 词： | NULL |
| 文章编号： | 1000-3673(2006)08-0076-05 |
| 收稿时间： | 2006-01-24 |
| 修稿时间： | 2006年1月24日 |
A Practical Fault Location Method for Medium Voltage Distribution Network |
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| GUO Jun-hong,YANG Yi-han,TAN Wei-pu,SUN Jian-feng,YOU Yao-li.A Practical Fault Location Method for Medium Voltage Distribution Network[J].Power System Technology,2006,30(8):76-80. | |
| Authors: | GUO Jun-hong YANG Yi-han TAN Wei-pu SUN Jian-feng YOU Yao-li |
| Affiliation: | 1,School of Electrical Engineering, North China Electric Power University, Changping District, Beijing 102206, China; 2. North China Grid Company Limited, Xuanwu District, Beijing 100053, China; 3. Taiyuan Electric Power Design Institute, Taiyuan 034000, Shanxi Province, China |
| Abstract: | 35 kV and 66 kV medium voltage(MV) distribution networks belong to neutral non-effective grounding system, at present there is no good fault location method for them. In view of the fault current in MV distribution network is weak, the paper proposes a two terminals fault location method by detecting the traveling wave online. In physical experiment the grounding fault is simulated by contacting a live line to a uncharged line, at the same time the data of voltage traveling wave are recorded by high speed data acquisition card in synchronized cycling mode. The results of the experiment show that it is effective to use voltage traveling wave as fault location signal and the fault location method is feasible. |
| Keywords: | traveling wave distribution network fault location wavelet transform power system |
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