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Statistical Fingerprint Analysis for Contaminated Insulator Acoustic Emission Signals
Author(s): 
Pages: 2705-2710
Year: Issue:  11
Journal: High Voltage Engineering

Keyword:  污秽绝缘子声发射放电指纹最小二乘支持向量机分类识别;
Abstract: 在深入研究绝缘子污秽放电声发射信号的基础上,提出采用统计指纹参量来评定绝缘子外绝缘状态的新方法.提出将污秽绝缘子外绝缘状态划分为3个阶段,即安全、报警和危险,为发布污闪预警信息提供依据.绝缘子污秽放电的强度和声发射信号之间存在对应关系,根据绝缘子污秽放电声发射信号的放电幅值分布和频谱分布图提取了17个统计指纹参量,绘制了绝缘子污秽放电不同发展阶段的统计指纹图谱,显著地表征了不同放电阶段的差异.并从...
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