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Study on object recognition method of multi-source PD diagrams in oil-immersed power transformer
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Yanbo WANG1, 2, Wei WANG1, 2, Dawei WANG1, 2, Yajun ZOU1, 2, Dingge CHANG3, Guanjun ZHANG3
Insulating Materials | 2023, 56(4) : 85 - 92
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Insulating Materials | 2023, 56(4): 85-92
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Study on object recognition method of multi-source PD diagrams in oil-immersed power transformer
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Yanbo WANG1, 2, Wei WANG1, 2, Dawei WANG1, 2, Yajun ZOU1, 2, Dingge CHANG3, Guanjun ZHANG3
Affiliations
  • 1Global Energy Interconnection Co., Ltd., Beijing 100031, China
  • 2Global Energy Interconnection Development and Cooperation Organization, Beijing 100031, China
  • 3Xi′an Jiaotong University, Xi′an 710049, China
Published: 2023-04-20 doi: 10.16790/j.cnki.1009-9239.im.2023.04.014
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Partial discharge (PD) phenomenon in power transformer is not only the main cause of insulation deterioration, but also the characteristic parameter to characterize the insulation condition. It is of great significance to accurately recognize the type of PD for the diagnosis of transformer insulation condition. A new method for identifying the type of multi-source PD spectrum based on Faster-RCNN algorithm was proposed in this paper, which can detect different types of PD clusters from multi-source spectrum. The results show that the average recognition accuracy of multi-source PD reaches 72.1% when the proposed algorithm was applied to the PD spectrum obtained from 35 kV transformer. Because the air gap defect has dense PD points and obvious characteristics, its missed and false detection rates are lower than other defects, leading to there be good discrimination for the air gap defect. Because the tip defect has the characteristics of intermittent discharge and high initial discharge voltage, its missed detection rate is high.

power transformer  /  pattern recognition  /  partial discharge  /  RCNN
Yanbo WANG, Wei WANG, Dawei WANG, Yajun ZOU, Dingge CHANG, Guanjun ZHANG. Study on object recognition method of multi-source PD diagrams in oil-immersed power transformer[J]. Insulating Materials, 2023 , 56 (4) : 85 -92 . DOI: 10.16790/j.cnki.1009-9239.im.2023.04.014
Year 2023 volume 56 Issue 4
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2023.04.014
  • Receive Date:2022-03-30
  • Online Date:2025-11-21
  • Published:2023-04-20
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  • Received:2022-03-30
  • Revised:2022-05-26
Affiliations
    1Global Energy Interconnection Co., Ltd., Beijing 100031, China
    2Global Energy Interconnection Development and Cooperation Organization, Beijing 100031, China
    3Xi′an Jiaotong University, Xi′an 710049, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2023.04.014
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
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Genus
种数
Number of
species
占总种数比例
Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
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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