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Study on fault location in distribution network based on C-type travelling-wave scheme
Author(s): 
Pages: 1-4,12
Year: Issue:  10
Journal: RELAY

Keyword:  行波故障定位自适应滤波特征波;
Abstract: 提出了利用C型行波法在配电网中进行故障定位的方法.该方法分两步进行,第一步定出故障距离,第二步定出故障分支.在线路始端注入高幅值窄脉冲并检测从线路返回的波形,比较进行自适应滤波后正常和故障两种情况下的波形,得到故障距离.提出行波传输的特征波的概念.通过分析故障录波的特征波,来确定故障分支.将故障测距和故障分支结果结合起来达到精确定位.通过理论分析、ATP仿真及现场实验,并对所得数据进行有效分析,证明了该方法的正确性,也说明该方法在配电网故障定位中是实际可行的.
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