南方电网技术2016，Vol.10Issue(11)：45-51,78,8.DOI:10.13648/j.cnki.issn1674-0629.2016.11.007
基于熵权关联理论的变压器绕组松动状态的振动检测法
Vibration Detection Method of Transformer Winding Looseness Based on Entropy Weight Correlation Theory
钱国超 1于虹 1邹德旭 1徐肖伟 1刘光祺1
作者信息
- 1. 云南电网有限责任公司电力科学研究院，昆明650217
- 折叠
摘要
Abstract
To effectively detect the hidden fault of transformer winding,a new vibration detection method of transformer winding is proposed,which combines grey correlation analysis and entropy weight theory,and is based on the inherent relations of vibration fre-quency response (VFR)curves at several measuring points.The grey correlation degree and grey area correlation degree of VFR curves at each measuring point are computed based on grey theory,then entropy weight correlation degree is defined and the state of transformer winding is tested.The VFR experimental results of some 220 kV transformer winding under normal and lossened condition are analyzed.The results show that the computed results based on proposed method agree well with the preset condition of transformer winding,which well illustrates the loosened degree of transformer winding,and has better application value.关键词
变压器/绕组/振动频响/熵权关联度/状态检测Key words
transformer/winding/vibration frequency response/entropy weight correlation/condition detection分类
信息技术与安全科学引用本文复制引用
钱国超,于虹,邹德旭,徐肖伟,刘光祺..基于熵权关联理论的变压器绕组松动状态的振动检测法[J].南方电网技术,2016,10(11):45-51,78,8.
