基于VMD-Hausdorff算法的小电流接地系统单相接地故障保护方法
Dianci bileiqi为消除中性点接地方式、故障点过渡电阻阻值以及现有保护方法盲区等因素对小电流接地系统单相接地故障保护准确性的影响，提出了一种基于暂态信息量幅值特征差异，结合变分模态分解（Variational Mode Decomposition，VMD）与Hausdorff距离算法的单相接地故障保护方法。首先，通过分析单相接地故障暂态过程，明确了健全线路、故障线路出口侧以及健全区段、故障区段两端暂态零序电流幅值特征关系。其次通过变分模态分解提取暂态高频信号，并引入Hausdorff距离算法 ...
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