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电网技术  2006 

基于形态综合算法的行波差动保护方案

, PP. 98-102

Keywords: 行波差动保护,多分辨形态梯度,形态综合算法,电力系统

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Abstract:

在对传统行波差动保护研究的基础上,提出了一种新的行波差动保护方案,仅利用线路两端初始方向行波波头信息构成保护动作判据。利用多分辨形态梯度变换提取波头模极大值,同时设计了一种新型形态滤波器对信号进行前置滤波,从而组成了形态综合算法。EMTP仿真验证了所提出算法的正确性与可靠性。

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