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Evaluation method of contact state of GIS disconnector based on multi-feature fusion
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Xianfeng LI1, Chengang HU1, Zhenyu GAO1, Zhonghua CHEN1, Feng CHEN2, Chenchen NI2, Luyang YAN2
Thermal Power Generation | 2023, 52(5) : 22 - 28
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Thermal Power Generation | 2023, 52(5): 22-28
• Special topics on safe operation, fault diagnosis and treatment technology of power generation equipment •
Evaluation method of contact state of GIS disconnector based on multi-feature fusion
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Xianfeng LI1, Chengang HU1, Zhenyu GAO1, Zhonghua CHEN1, Feng CHEN2, Chenchen NI2, Luyang YAN2
Affiliations
  • 1.Hangzhou Electric Power Design Institute Co., Ltd., Hangzhou 310000, China
  • 2.School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
Published: 2023-05-25 doi: 10.19666/j.rlfd.202208205
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The existing GIS disconnector contact state evaluation method is based on the single state characteristic quantity, the reliability of the evaluation result is low, and it is easy to misjudge and erroneous judgment. So a method of GIS disconnector contact state evaluation based on multi-feature fusion was presented. The multi state quantity comprehensive detection experimental platform of 220 kV GIS disconnector was built. And the relationships between the GIS disconnector shell temperature signal, shell vibration signal, partial discharge signal and the contact state of the disconnector were experimentally studied. On this basis, the temperature rise of GIS disconnector shell, the amplitude of shell vibration signal and the discharge amplitude of partial discharge UHF signal were taken as the state characteristic quantities of disconnector, and the contact state evaluation model of disconnector based on support vector machine was established. The test results show that the accuracy of GIS disconnector contact state evaluation method based on multi-feature fusion is the highest, can reach 92.92%.

GIS  /  disconnector  /  state assessment  /  multi-feature fusion
Xianfeng LI, Chengang HU, Zhenyu GAO, Zhonghua CHEN, Feng CHEN, Chenchen NI, Luyang YAN. Evaluation method of contact state of GIS disconnector based on multi-feature fusion[J]. Thermal Power Generation, 2023 , 52 (5) : 22 -28 . DOI: 10.19666/j.rlfd.202208205
Funding
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  • Science and Technology Project of Zhejiang Dayou Group Co., Ltd.(甲-2021-KJ-001)
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Year 2023 volume 52 Issue 5
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Article Info
doi: 10.19666/j.rlfd.202208205
  • Receive Date：2022-08-11
  • Online Date：2026-01-23
  • Published：2023-05-25
Article Data
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History
  • Received：2022-08-11
Funding
Science and Technology Project of Zhejiang Dayou Group Co., Ltd.(甲-2021-KJ-001)
Affiliations
    1.Hangzhou Electric Power Design Institute Co., Ltd., Hangzhou 310000, China
    2.School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
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https://castjournals.cast.org.cn/joweb/rlfd/EN/10.19666/j.rlfd.202208205
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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