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Influence of bipolar impulse parameters on PDIV of random wound inverter-fed motor insulation
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Junsheng CHEN1, Mingpeng HE2, Yue ZHANG2, Guoyong LIU2, Dongtao WU1, Peng WANG1
Insulating Materials | 2025, 58(5) : 89 - 96
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Insulating Materials | 2025, 58(5): 89-96
• Insulation Technology •
Influence of bipolar impulse parameters on PDIV of random wound inverter-fed motor insulation
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Junsheng CHEN1, Mingpeng HE2, Yue ZHANG2, Guoyong LIU2, Dongtao WU1, Peng WANG1
Affiliations
  • 1. College of Electrical Engineering, Sichuan University, Chengdu 610065, China
  • 2. Dongfang Electric Machinery Co., Ltd., Deyang 618025, China
Published: 2025-05-20 doi: 10.16790/j.cnki.1009-9239.im.2025.05.012
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The differential bipolar repetitive impulsive voltage was used to simulate the impulse width modulated electrical stress environment of inverter-fed motor. The effects of impulse width, dead zoon time, and impulse frequency on the partial discharge inception voltage (PDIV) test results of enameled twisted pair wires and random wound inverter-fed motor stator winding were studied. Based on the electric field distribution of insulation under bipolar impulsive voltage and gas discharge theory, the influence mechanism of impulse voltage parameters on PDIV was analyzed. The results show that the impulse width is correlated with the generation of initial electrons, leading to a negative correlation between PDIV test results and impulse width. The changes in residual charges and spatial electric field distribution on the insulation surface caused by short dead time may be a reason for the positive correlation between PDIV and dead time. Due to the weak influence of impulse frequency on initial electron generation and electric field distribution, the correlation between PDIV and impulse frequency is low.

inverter-fed motor  /  insulation system  /  partial discharge  /  partial discharge inception voltage(PDIV)  /  bipolar impulsive voltage
Junsheng CHEN, Mingpeng HE, Yue ZHANG, Guoyong LIU, Dongtao WU, Peng WANG. Influence of bipolar impulse parameters on PDIV of random wound inverter-fed motor insulation[J]. Insulating Materials, 2025 , 58 (5) : 89 -96 . DOI: 10.16790/j.cnki.1009-9239.im.2025.05.012
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Year 2025 volume 58 Issue 5
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2025.05.012
  • Receive Date：2024-09-30
  • Online Date：2025-12-04
  • Published：2025-05-20
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History
  • Received：2024-09-30
  • Revised：2024-12-13
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Affiliations
    1. College of Electrical Engineering, Sichuan University, Chengdu 610065, China
    2. Dongfang Electric Machinery Co., Ltd., Deyang 618025, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2025.05.012
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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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Percentage 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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