Aging condition assessment of oil-paper based on principal component and factor analysis of partial discharge

被引：0
|
作者：
Liao, Rui-Jin [1 ]
Yang, Li-Jun [1 ]
Sun, Cai-Xin [1 ]
Li, Jian [1 ]
机构：
[1] Key Laboratory of High Voltage Engineering and Electrical New Technology, Chongqing University, Chongqing 400044, China
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2006年 / 26卷 / 14期
关键词：
Oil circuit breakers - Partial discharges - Principal component analysis - Statistical methods;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A new statistical analysis method of phase-resolved partial discharge (PRPD) is proposed for the aging condition assessment of oil-paper. The accelerated aging test of a batch of oil-paper specimens with internal flat air gap is developed and the PD signal is measured periodically. Based on the conventional PRPD pattern, a group of new features are extracted by using the method of Principal Component and Factor Analysis. These features not only are independent with each other but also all have their own physical meaning. They represent the most information of PRPD pattern by limited number of variances. The clustering results of new features extracted at different aging stages suggest that the proposed method provide a powerful approach to identify the oil-paper's aging conditions.
引用
收藏
页码：114 / 119
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