Application of principal component analysis in vacuum diagnosis of vacuum interrupter based on laser spectroscopy
- Resource Type
- Conference
- Authors
- Huan, Yuan; Lidong, Song; Xiaonan, Wang; Xiaohua, Wang; Dingxin, Liu; Aijun, Yang
- Source
- 2017 3rd International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) Condition Assessment Techniques in Electrical Systems (CATCON), 2017 3rd International Conference on. :298-301 Nov, 2017
- Subject
- Engineered Materials, Dielectrics and Plasmas
Power, Energy and Industry Applications
Signal Processing and Analysis
Three-dimensional displays
laser induced plasma
vacuum degree
vacuum interrupter
online detection
- Language
Vacuum degree online detection of vacuum interrupter has been investigated for more than 50 years. But there still no suitable technique can be used in practical application. Laser induced plasma technique is applied to vacuum degree online detection in this paper. The laser induced plasma signal of Cu and ambient gas elements are investigated from 10 −3 Pa to 1 atm under laboratory condition. The change rules of laser induced plasma signal varying with pressure are obtained. Furthermore, principal component analysis is used to analyse the aggregation under different pressure. Research results indicated the ambient gas elements are changed with pressure monotonously. And the laser induced plasma signals under same pressure present good aggregation in phase space. A prospective method is proposed to solve vacuum degree online detection of vacuum interrupter in this paper.