基于夹角余弦的油浸式变压器故障诊断研究  

Research on Fault Diagnosis for Oil-immersed Transformer Based on Included Angle Cosine

作　　者：李俊峰[1] 戴文战[1] 

机构地区：[1]浙江理工大学自动化系,杭州310018

出　　处：《仪器仪表学报》2005年第12期1302-1304,1313,共4页Chinese Journal of Scientific Instrument

基　　金：浙江省自然科学基金(602016)资助项目

摘　　要：基于聚类分析理论,将变量间相似性度量——夹角余弦引入到变压器的故障诊断中。通过分析故障征兆集与标准故障模式集间的夹角余弦来进行故障诊断。文末应用该方法对一油浸式变压器进行故障诊断,实例结果表明所提出的方法是有效的。Based on theory of cluster analysis, the fault diagnosis method of included angle cosine is put forward. The fault models are ascertained according to included angle cosine among the fault symptom sets and the fault model sets. At last, the method is used to diagnose oil-immersed transformer faults. The results show the effectiveness of the proposed approach.

关 键 词：故障诊断 变压器 夹角余弦 

分 类 号：TM261[一般工业技术—材料科学与工程]