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电网技术  2010 

基于振动信号小波包提取和相似性原则的高压开关设备振动监测

, PP. 189-193

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Abstract:

监测高压开关设备振动是及时发现故障隐患的有效手段之一,为此,提出了一种分析高压开关设备振动信号的新方法,即将小波包信号提取算法和相似性原则相结合,利用小波包分解与重构将高压开关设备的合(分)闸振动信号分解到不同频段中,并对代表有效振动信号的分解系数进行重构,然后运用相似性原则对重构后的信号进行辨识,以确定高压开关设备是否正常运行。应用Matlab进行了仿真分析,并对仿真分析结果进行了试验验证,结果表明,小波包信号提取算法结合相似性判别原则分析高压开关设备振动信号具有良好的效果。

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