New Diagnosis Method of Unknown Phase-shifted PD Signals for Gas Insulated Switchgears

被引：9

作者：

Kim, Sung-wook ^{[1
]}

Jung, Jae-ryong ^{[1
]}

Kim, Young-min ^{[1
]}

Kil, Gyung-suk ^{[2
]}

Wang, Guoming ^{[2
]}

机构：

[1] Hyosung Corp, Power Asset Management Team, R&D Ctr, 454-2 Nae Dong, Chang Won, Gyeongsangnam D, South Korea

[2] Korea Maritime & Ocean Univ, Dept Elect & Elect Engn, Busan 49112, South Korea

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2018年 / 25卷 / 01期

关键词：

Gas Insulated switchgears; unknown phase-shifted partial discharge; UHF measurement; decision tee; PARTIAL DISCHARGES; ULTRAWIDE; MECHANISM;

D O I：

10.1109/TDEI.2018.006739

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：

In many cases of on-site PD measurement, it is difficult to acquire the perfect phase angle of the PD signal synchronized with the applied voltage. This paper describes a new method of PD diagnosis which can classify the types of defects for unknown phase-shifted PDs using decision tree method. 327 cases of on-site PD data were collected in the field. 5 valid parameters were extracted and the decision tree-based diagnostic algorithm was used to classify types of 6 PDs and 4 noises clearly. Finally we confirmed the new method of PD diagnosis can be applied to on-site GIS diagnosis.

引用

页码：102 / 109

页数：8

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