Study on partial discharge of metallic outshoot insulation defect in GIS

被引：0
|
作者：
Qian, Z [1 ]
Ju, T [1 ]
Xu, ZR [1 ]
Meng, YH [1 ]
Zhang, XX [1 ]
机构：
[1] Chongqing Univ, Minist Educ, Key Lab High Voltage Engn & Elect New Technol, Chongqing 400044, Peoples R China
来源：
Proceedings of the 2005 International Symposium on Electrical Insulating Materials, Vols, 1-3 | 2005年
关键词：
partial discharge in GIS; ultra-high frequency (UHF); mathematical model; complex wavelet transform;
D O I：
10.1109/ISEIM.2005.193581
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Detection of Partial discharge (PD) signals in gas-insulated substation (GIS) is a comprehensive research project. In this paper, physical model and corresponding mathematical model of metallic outshoot insulation defect on enclosure are established and studied for PD in GIS using UHF method, which are based on the characteristics of metallic outshoot insulation defect and UHF inner-loop sensor. The parameters of the mathematical model are given according to data fitting method, and the validity of PD mathematical model in UHF is proved by fitting error, power spectrum and FFT analysis. In the end, applications of the PD mathematical model and complex wavelet transform for restraining white noise are illustrated.
引用
收藏
页码：431 / 434
页数：4
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