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Simulation Calculation and Measurement of Voltage Distribution on Stator Winding of Permanent Magnet Direct-drive Wind Generator
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Mingpeng HE1, Yue ZHANG1, Xuezhong LIU2, Qirui FAN2, Bo HU1, Zhiming LIANG1, Pengfei YUAN2, Ping LIU2
Insulating Materials | 2022, 55(6) : 95 - 100
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Insulating Materials | 2022, 55(6): 95-100
Test and Analysis
Simulation Calculation and Measurement of Voltage Distribution on Stator Winding of Permanent Magnet Direct-drive Wind Generator
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Mingpeng HE1, Yue ZHANG1, Xuezhong LIU2, Qirui FAN2, Bo HU1, Zhiming LIANG1, Pengfei YUAN2, Ping LIU2
Affiliations
  • 1Dongfang Electric Machinery Co., Ltd., Deyang 618000, China
  • 2State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710000, China
Published: 2022-06-20 doi: 10.16790/j.cnki.1009-9239.im.2022.06.017
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The high frequency repetitive impulse generated by the inverter can lead to uneven overvoltage with high amplitude along the stator windings, which will accelerate the ageing of insulation system and even cause faults. On the basis of the transient analysis software PSCAD/EMTDC, the equivalent circuit model for three-phase stator windings of 2.5 MW permanent magnet direct-drive generator was established, and the parameters of corresponding equivalent circuit were calculated by finite element method. Moreover, the experimental platform was built for verifying the validity of the calculation results. The results show that under the effect of three-phase pulse width modulation (PWM) pulse voltage, the amplitudes of the overvoltage to ground, coil to coil overvoltage, and turn to turn overvoltage of the stator winding for permanent magnet direct-drive wind generator show a decreasing trend from the connecting terminal of motor to the neutral point of winding. The experimental results further verify the accuracy of the equivalent circuit model of three-phase stator winding.

permanent magnet direct-drive wind generator  /  PWM converter  /  stator winding  /  voltage distribution
Mingpeng HE, Yue ZHANG, Xuezhong LIU, Qirui FAN, Bo HU, Zhiming LIANG, Pengfei YUAN, Ping LIU. Simulation Calculation and Measurement of Voltage Distribution on Stator Winding of Permanent Magnet Direct-drive Wind Generator[J]. Insulating Materials, 2022 , 55 (6) : 95 -100 . DOI: 10.16790/j.cnki.1009-9239.im.2022.06.017
Year 2022 volume 55 Issue 6
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2022.06.017
  • Receive Date:2021-09-02
  • Online Date:2025-12-23
  • Published:2022-06-20
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  • Received:2021-09-02
  • Revised:2021-11-04
Affiliations
    1Dongfang Electric Machinery Co., Ltd., Deyang 618000, China
    2State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710000, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2022.06.017
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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
total species (%)

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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