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Influence of Repetitive Square Wave Voltage Parameters on PD Frequency Domain Energy Distribution of Inverter-fed Motor Insulation
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Chaofan YU, Peng WANG, Shijin MA, Peiyi LI, Shakeel AKRAM
Insulating Materials | 2022, 55(2) : 78 - 83
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Insulating Materials | 2022, 55(2): 78-83
• Insulation Technology •
Influence of Repetitive Square Wave Voltage Parameters on PD Frequency Domain Energy Distribution of Inverter-fed Motor Insulation
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Chaofan YU, Peng WANG, Shijin MA, Peiyi LI, Shakeel AKRAM
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  • College of Electrical Engineering, Sichuan University, Chengdu 610065, China
Published: 2022-02-20 doi: 10.16790/j.cnki.1009-9239.im.2022.02.011
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Using bipolar repetitive square wave voltage, with the help of ultra-high frequency testing method, the influence of the voltage amplitude, frequency, duty ratio and rise time of repetitive square wave on the frequency domain energy distribution of inverter-fed motor inter-turn insulation discharge was experimentally studied. The results show that that the frequency domain energy of discharge above 0.50 GHz increases significantly with the increase of duty ratio; the energy of each frequency band increases with the increase of the pulse voltage amplitude, and the high-frequency energy above 1.50 GHz continues to attenuate with the increase of frequency; the rising rate of pulse voltage has a significant impact on the energy of the discharge frequency domain. The high-frequency energy of the discharge pulse at 1.00-2.00 GHz increases with the increase of the voltage rising rate. When designing the UHF sensor for PDIV test of inverter-fed motor insulation under high-frequency and steep pulse voltage, the influence of the above-mentioned pulse parameters on the energy distribution in frequency domain should be fully considered to improve the sensitivity and signal-to-noise ratio of the PDIV test.

inverter-fed motor  /  partial discharge  /  voltage amplitude  /  duty ratio  /  rise time  /  frequency domain energy
Chaofan YU, Peng WANG, Shijin MA, Peiyi LI, Shakeel AKRAM. Influence of Repetitive Square Wave Voltage Parameters on PD Frequency Domain Energy Distribution of Inverter-fed Motor Insulation[J]. Insulating Materials, 2022 , 55 (2) : 78 -83 . DOI: 10.16790/j.cnki.1009-9239.im.2022.02.011
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doi: 10.16790/j.cnki.1009-9239.im.2022.02.011
  • Receive Date：2021-03-21
  • Online Date：2025-12-22
  • Published：2022-02-20
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  • Received：2021-03-21
  • Revised：2021-05-04
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    College of Electrical Engineering, Sichuan University, Chengdu 610065, China
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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
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Genus		 种数
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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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