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电网技术  2015 

利用多分辨奇异谱熵和支持向量机的特高压直流输电线路区内外故障识别方法

DOI: 10.13335/j.1000-3673.pst.2015.04.017, PP. 989-994

Keywords: UHVDC,power,transmission,recognition,of,faults,located,inside,or,outside,the,protection,zone,singular,spectrum,entropy,SVM,characteristic,vector

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Abstract:

提出一种基于多分辨奇异谱熵和支持向量机的特高压直流输电线路区内外故障识别方法,可准确将本侧区外故障、区内故障以及对侧区外故障区分开。进行小波多尺度分解,求得各层的奇异谱熵,将每层的奇异谱熵组成一个特征向量,特征向量分成训练集和测试集,将训练集进行训练得到支持向量机(supportvectormachines,SVM)分类器的参数,用测试集进行测试,预测结果就是对不同位置故障的分

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