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A state evaluation technique for dry-type air-core reactors based on weighted Naïve Bayes
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Qicheng ZHAO1, Bo ZHANG2, Jinqi HONG3, Guowen HAN4, Wenfang HAN4, Feng CHEN4
Thermal Power Generation | 2023, 52(10) : 144 - 152
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Thermal Power Generation | 2023, 52(10): 144-152
• Power generation technology forum •
A state evaluation technique for dry-type air-core reactors based on weighted Naïve Bayes
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Qicheng ZHAO1, Bo ZHANG2, Jinqi HONG3, Guowen HAN4, Wenfang HAN4, Feng CHEN4
Affiliations
  • 1.State Grid Zhejiang Electric Power Co., Ltd., Research Institute, Hangzhou 310014, China
  • 2.EHV Branch Company of State Grid Zhejiang Electric Power Co., Ltd., Hangzhou 311121, China
  • 3.Shaoxing Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Shaoxing 312000, China
  • 4.School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Published: 2023-10-25 doi: 10.19666/j.rlfd.202306040
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In the actual operation status of dry-type air-core reactor, the focus and difficulty of the fault diagnosis method is to reduce the false alarm rate and the missing alarm rate. About it, this paper proposes a weighted Naïve Bayes state evaluation method for a dry-type air-core reactor. First, a simulation model of a reactor inter-turn short circuit fault is established using multi-physical field coupling, and the effectiveness of the simulation method is validated by constructing a reactor operation test platform. Second, simulation and analysis of reactor current amplitude, current harmonics, impedance angle, and hot spot temperature under multiple operating conditions are performed to obtain the reactor’s normal and known fault sample sets. Finally, a weighted Naïve Bayes state evaluation model is developed using multi-state feature quantities. The example demonstrates that this method is effective for reactor operation state recognition and classification because it has high classification accuracy and requires fewer training samples.

dry-type air core reactor  /  equivalent model  /  weighted Naïve Bayes  /  state evaluation
Qicheng ZHAO, Bo ZHANG, Jinqi HONG, Guowen HAN, Wenfang HAN, Feng CHEN. A state evaluation technique for dry-type air-core reactors based on weighted Naïve Bayes[J]. Thermal Power Generation, 2023 , 52 (10) : 144 -152 . DOI: 10.19666/j.rlfd.202306040
Funding
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  • Science and Technology Project of State Grid Headquarters(5500-202119131A-0-0-00)
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Year 2023 volume 52 Issue 10
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Article Info
doi: 10.19666/j.rlfd.202306040
  • Online Date：2026-01-26
  • Published：2023-10-25
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History
  • Revised：2023-06-20
Funding
Science and Technology Project of State Grid Headquarters(5500-202119131A-0-0-00)
Affiliations
    1.State Grid Zhejiang Electric Power Co., Ltd., Research Institute, Hangzhou 310014, China
    2.EHV Branch Company of State Grid Zhejiang Electric Power Co., Ltd., Hangzhou 311121, China
    3.Shaoxing Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Shaoxing 312000, China
    4.School of Mechanical 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.202306040
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表12种不同金属材料的力学参数
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Family		 属数
Number of
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Number of
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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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