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Experimental and simulation analysis on effect of repetitive pulse voltage on conductive armor tape of large rotating motor bar
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Yan LIU1, Wenhuan ZHAO2, Peng WANG2, Shuai YANG1, Yue ZHANG1, Yingwei ZHU2
Insulating Materials | 2024, 57(1) : 87 - 93
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Insulating Materials | 2024, 57(1): 87-93
• Insulation Technology •
Experimental and simulation analysis on effect of repetitive pulse voltage on conductive armor tape of large rotating motor bar
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Yan LIU1, Wenhuan ZHAO2, Peng WANG2, Shuai YANG1, Yue ZHANG1, Yingwei ZHU2
Affiliations
  • 1Dongfang Electric Machinery Co., Ltd., Deyang 618000, China
  • 2College of Electrical Engineering, Sichuan University, Chengdu 610005, China
Published: 2024-01-20 doi: 10.16790/j.cnki.1009-9239.im.2024.01.013
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The effects of repetitive pulse voltage on the surface potential of the inverter-fed motor rotor bar insulation with different length of extension part and fixed metal plate were discussed under different rise times. Then the changing mechanism of the insulation surface potential was discussed combined with charge relaxation theory and finite element simulation. The results show that the surface potential peak-to-peak value of bar decreases with the increase of repetitive pulse rise time. When the pulse rise time reaches 800 ns, the potential peak-to-peak value at the end of the conductive armor tape is close to twice of the applied voltage peak-to-peak value. Under working conditions, when the insulation surface temperature exceeds 150℃, white smoke will be generated and accompanied by partial discharge phenomenon. It is analyzed that the jump voltage with short rise time is an important parameter affecting the electrical and thermal properties of bar. Finally, according to the experimental and simulation results, some reasonable improvement suggestions are proposed for the insulation design of inverter-fed motor bars.

repetitive pulse voltage  /  inverter-fed motor  /  conductive armor tape  /  surface potential  /  maximum temperature
Yan LIU, Wenhuan ZHAO, Peng WANG, Shuai YANG, Yue ZHANG, Yingwei ZHU. Experimental and simulation analysis on effect of repetitive pulse voltage on conductive armor tape of large rotating motor bar[J]. Insulating Materials, 2024 , 57 (1) : 87 -93 . DOI: 10.16790/j.cnki.1009-9239.im.2024.01.013
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Year 2024 volume 57 Issue 1
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2024.01.013
  • Receive Date：2023-03-08
  • Online Date：2025-12-22
  • Published：2024-01-20
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History
  • Received：2023-03-08
  • Revised：2023-04-20
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Affiliations
    1Dongfang Electric Machinery Co., Ltd., Deyang 618000, China
    2College of Electrical Engineering, Sichuan University, Chengdu 610005, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2024.01.013
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
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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