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Method for Determining Arc Discharge as well as Failure of Mechanical Vibration and Abnormal Displacement in Power Equipment Using Acoustic Energy Feature
Method for Determining Arc Discharge as well as Failure of Mechanical Vibration and Abnormal Displacement in Power Equipment Using Acoustic Energy Feature
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机译:利用声能特征确定电力设备电弧放电以及机械振动和异常位移的故障的方法
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摘要
The present invention provides a method for determining arc discharge as well as failure of mechanical vibration and abnormal displacement in power equipment using acoustic energy feature. Here, acoustic energy feature is firstly introduced to realize real-time, online inspection of failure in power equipment, enabling qualitative determination of discharge as well as mechanical vibration and abnormal displacement, so as to improve early warning before damage. Two factors, in which one is early detection of discharge, and the other is early detection of mechanical vibration and abnormal displacement, are considered. When abnormality of any one of these factors is emerged, it is demonstrated that hidden trouble is presented. Here, acoustic energy feature is used to perform real-time, online monitoring. Due to reliable diagnosis and strong interference resistance provided by sound source signals, the operating condition in which the equipment is situated may be reflected clearly, avoiding damage to electric power grid.
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