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Application of Epoxy Modified Unsaturated Polyesterimide Impregnating Resin in Stator of Direct-drive Wind Generator
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Xiaoqiang ZHANG1, 2, Wenxin HAN1, 2, Hongliang MA1, 2, Dapeng GUO1, 2, Dan LI1, 2
Insulating Materials | 2022, 55(1) : 32 - 36
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Insulating Materials | 2022, 55(1): 32-36
• Material Research •
Application of Epoxy Modified Unsaturated Polyesterimide Impregnating Resin in Stator of Direct-drive Wind Generator
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Xiaoqiang ZHANG1, 2, Wenxin HAN1, 2, Hongliang MA1, 2, Dapeng GUO1, 2, Dan LI1, 2
Affiliations
  • 1CRRC Yongji Electric Co., Ltd., Yongji 044502, China
  • 2Shanxi Key Laboratory of Traction Motor for Rail Transit, Yongji 044502, China
Published: 2022-01-20 doi: 10.16790/j.cnki.1009-9239.im.2022.01.005
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In order to improve the mechanical strength and weather resistance in special environment of direct-drive wind generator insulation system, the partial model of direct-drive wind generator stator was impregnated by epoxy modified unsaturated polyesterimide impregnating resin. At first, the performance of the resin and the initial performance of the partial model were tested. Then the partial model was subjected to 12 cycles of water immersion and cold-thermal shock tests, and the performance changes before and after the test were analyzed. The results show that the resin has low odor, low curing volatile content, and excellent mechanical properties, insulating properties, and storage stability. The initial performance of the partial model is excellent. The insulation resistance of the model coil at 150℃ and after water immersion increases at first and then decreases during test process, while the dielectric loss factor at 150℃ increases gradually. After test, the insulating properties of the model coil can meet the requirements of direct-drive wind generator.

direct-drive wind generator  /  impregnating resin  /  stator partial model  /  water immersion and cold-thermal shock
Xiaoqiang ZHANG, Wenxin HAN, Hongliang MA, Dapeng GUO, Dan LI. Application of Epoxy Modified Unsaturated Polyesterimide Impregnating Resin in Stator of Direct-drive Wind Generator[J]. Insulating Materials, 2022 , 55 (1) : 32 -36 . DOI: 10.16790/j.cnki.1009-9239.im.2022.01.005
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2022.01.005
  • Receive Date：2021-02-23
  • Online Date：2025-12-23
  • Published：2022-01-20
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History
  • Received：2021-02-23
  • Revised：2021-04-07
Affiliations
    1CRRC Yongji Electric Co., Ltd., Yongji 044502, China
    2Shanxi Key Laboratory of Traction Motor for Rail Transit, Yongji 044502, China
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Citations
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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