和敬涵;罗易萍;罗国敏;张永杰;

• 1:北京交通大学电气工程学院

摘要(Abstract)：

提出一种基于小波多分辨分析和支持向量机(support vector machine,SVM)的柔性直流系统单端保护方法,仅使用单端电流即可以准确区分区内、外故障,并识别直流故障类型。首先利用小波多分辨分析求得故障电流在各频带的能量百分比,构成输入特征向量;然后通过已有数据训练后的SVM模型区分并识别故障类型。结果表明,文中所提保护方法在柔性直流系统多种运行工况下均能对故障进行准确识别,且保护方法整定简单、无需数据同步和通信,具备较强的抗干扰能力。

关键词(KeyWords)： 柔性直流系统;故障识别;小波多分辨分析;支持向量机

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2016YFB0900605)~~

作者(Author): 和敬涵;罗易萍;罗国敏;张永杰;

Email:

DOI: 10.13335/j.1000-3673.pst.2018.0822

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