摘要
本文首次将判别分析法用于油纸绝缘老化程度的识别,提出了一种基于Fisher判别法和多个局部放电特征参量的油纸绝缘老化程度识别方法。以30个老化特征向量为经验样本,构造判别函数,将十一维特征向量映射到二维平面上,通过对其他30个样本进行老化程度的判别分析,结果表明采用Fisher判别函数能够对新样本的绝缘状态作出合理的判断。
In this paper, the discriminant analysis method is introduced to identify the aging stages of oil-paper. An identification method based on Fisher discriminant function and multiple PD characteristic parameters is proposed. The 30 vectors distracted from 6 samples at 5 different aging stages are used as reference samples to obtain Fisher discriminant functions. The characteristic vector with eleven-dimension is mapped to two-dimension and the other 30 vectors analyzed as samples need to be identified using discriminant functions. It is concluded that a reasonable result can be achieved using the Fisher discriminant functions.
出处
《电工技术学报》
EI
CSCD
北大核心
2005年第8期33-37,共5页
Transactions of China Electrotechnical Society
基金
国家杰出青年科学基金资助项目(50425722)
关键词
判别法
绝缘老化
局部放电
Discriminantanalysis, insulation aging, partial discharge
