中国电机工程学报2012，Vol.32Issue(31)：92-99,前插12,9.
油纸绝缘局部放电与油中产气规律的典型相关分析
Canonical Correlation Analysis of Dissolved Gas Production With Partial Discharges in Oil Paper Insulation
摘要
Abstract
Dissolved gas analysis (DGA) is one of the important methods to measure and diagnose partial discharge (PD) defects. Its accuracy is limited because of the lack of correlation of oil dissolved gases with actual faults found in transformers. Based on the experiments of three typical PD models in oil paper insulation, a study on the correlation between statistical parameters of partial discharges and oil dissolved gas products was presented using canonical correlation analysis (CCA). The result shows that the correlation between the two groups of parameters can be evaluated in a quantitative manner by this approach. In addition, the contribution of each parameter to the correlation was'also calculated and the main parameters of each group were extracted, e.g. characteristic statistical parameters of surface discharge are skewness (sk) and peak numbers (pk) while characteristic parameters of dissolved gases are ethylene and ethane. The experimental result provides a reference for further research of gassing mechanism of partial discharges and the accuracy enhancement of DGA method.关键词
局部放电/油中溶解气体分析/典型相关分析/油纸绝缘Key words
partial discharge/ dissolved gas analysis/canonical correlation analysis/ oil paper insulation分类
信息技术与安全科学引用本文复制引用
陈曦,陈伟根,王有元,杜杰..油纸绝缘局部放电与油中产气规律的典型相关分析[J].中国电机工程学报,2012,32(31):92-99,前插12,9.基金项目
国家创新研究群体基金(51021005). （51021005）
