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发明公开
CN104597377A 输电线路雷击点与闪络点不一致时的故障测距方法 无效 - 撤回

输电线路雷击点与闪络点不一致时的故障测距方法
摘要：
本发明公开了一种输电线路雷击点与闪络点不一致时的故障测距方法，其在输电线路上至少设置两个检测点；确定雷击点和闪络点不一致；获得所述两个检测点的首个行波电流的最大能量Ei：Ei＝max(|si(t)|)×ti，其中i＝1,2，其分别表征两个检测点；si(t)表示检测点检测到的首个行波电流，ti表示该首个行波电流的波长；比较两个检测点的最大能量Ei，较大的为雷击侧检测点，另一个为闪络侧检测点；根据模型定位雷击点和闪络点。
摘要（英）：

The invention discloses a fault ranging method for inconsistent lightning strike point and flashover point of a transmission line. The method comprises the steps of arranging at least two detecting points on the transmission line; determining the consistency of a lightning strike point and the flashover point; acquiring the maximum energy Ei of the first travelling wave currents of the two detecting points, wherein Ei=max(|si(t)|)xti, i is 1, 2 and respectively represents the two detecting points, si(t) represents the first detected travelling wave currents of the detecting points, and ti represents the wavelengths of the first travelling wave currents; comparing the maximum energy Ei of the two detecting points; treating the large one as the lightning side detecting point and another one as the flashover side detecting point; positioning the lightning point and the flashover point according to a model.

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