Advance Search
HOU Hongwei, QIN Zhu. Research and analysis of temperature fieldon mine permanent magnet direct drive motor[J]. COAL SCIENCE AND TECHNOLOGY, 2021, 49(6): 219-224.
Citation: HOU Hongwei, QIN Zhu. Research and analysis of temperature fieldon mine permanent magnet direct drive motor[J]. COAL SCIENCE AND TECHNOLOGY, 2021, 49(6): 219-224.

Research and analysis of temperature fieldon mine permanent magnet direct drive motor

More Information
  • Available Online: April 02, 2023
  • Published Date: June 24, 2021
  • For the low-speed high-power mine permanent magnet direct-drive motor with high harmonic content, multi-physics coupling, complex fluid field and other characteristics, the motor components are heated and the magnetic field distortion is serious. For 500 kW and 60 r/min fractional slot concentrated winding mine separation loss analysis of the permanent magnet direct drive motor is carried out. According to the calculation results, the stator copper loss accounts for the highest proportion of total loss, followed by the stator core loss and the rotor permanent magnet loss. According to the loss characteristics, the water jacket base is installed outside the motor, and the internal passage is passed. The fan forms a cooling system structure for the circulation air path. In the cooling system, the copper loss and iron loss of the stator are transmitted to the machine base through heat conduction; the stator core and the water jacket base adopt a heat jacket structure to increase the heat transfer effect; the heat of the stator end is transmitted to the straight line through the copper winding, and then stator core is transported away, and the heat of the rotor permanent magnet is carried to the stator core yoke portion by the plated block and the rotor yoke laminated structure, and is carried by the base cooling water. Iterative calculations verify that when a given inflow temperature is reached and the stator stator inner diameter is thermally insulated, the rotor heat is applied to the stator yoke hole, and the rotor air gap air temperature is loaded to the inner diameter surface of the stator, and the motor components substantially reach thermal equilibrium. The motor′s stator axial 1/2 half-tooth half-slot and the rotor radial 1/8 are intercepted. The Realizable k-ε model is used to simulate and analyze the three-dimensional temperature field of the model object under the cooling system. The results show that the low-speed high-power mine permanent magnet direct-drive motor can effectively reduce the heat generated by the stator end and the rotor magnet under the synergistic effect of the cooling system, reduce the uneven heating of the winding caused by the rotor and the copper loss of the stator, and ensure the stator of the motor. The main electromagnetic components such as windings and rotor permanent magnets operate stably in the safe temperature range, which provides a theoretical basis for structural optimization of low-speed high-power permanent magnet direct-drive motors.
  • Related Articles

    [1]TANG Bin, TANG Yongzhi, ZHAO Neng, WANG Yaoping, CAO Wei, BAO Beibei, WANG Yanguo, SUN Changhong, WANG Xiaoyun. Coal mine micro TBM and its applications on excavation of coal seam gases drainage roadways[J]. COAL SCIENCE AND TECHNOLOGY, 2023, 51(S1): 104-111. DOI: 10.13199/j.cnki.cst.mcq22-0918
    [2]WANG Qingcang, LIU Quanhui, SONG Zhaoyang, LI Qiang, REN Huaiwei. Feasibility analysis of excavation with open full section boring machine for ultra-long distance slant in coal mine[J]. COAL SCIENCE AND TECHNOLOGY, 2023, 51(7): 310-320. DOI: 10.13199/j.cnki.cst.2022-0705
    [3]TONG Bi, CHEN Jianben, SUN Tao. Key technology and application of small-sized full-section boring machine for rapid construction[J]. COAL SCIENCE AND TECHNOLOGY, 2023, 51(4): 185-197. DOI: 10.13199/j.cnki.cst.2021-0942
    [4]LIU Quansheng, HUANG Xing, PAN Yucong, LIU Bin, DENG Penghai. Application and research progress of TBM tunneling in coal mine roadway[J]. COAL SCIENCE AND TECHNOLOGY, 2023, 51(1): 242-259. DOI: 10.13199/j.cnki.cst.2022-2253
    [5]WU Yongzheng, HE Jie, WANG Yang. Study on failure mechanism and control technology oflarge cross section rockburst roadway[J]. COAL SCIENCE AND TECHNOLOGY, 2018, (1).
    [6]Wu Tao. Study on optimization of support selection for mine large cross section soft rock inclined shaft[J]. COAL SCIENCE AND TECHNOLOGY, 2015, (12).
    [7]Wang Weiming Lyu Xianzhou Qin Wenlu, . Research on construction technology of large section roadway crossing Ordovician limestone water fault[J]. COAL SCIENCE AND TECHNOLOGY, 2015, (10).
    [8]GUO Zhen-xing. Study on Support Method Optimization for Large Cross Section Gateway Under Complicaied Geological Conditions[J]. COAL SCIENCE AND TECHNOLOGY, 2014, (3).
    [9]ZHANG Chuan-shu DU Ji-ping, . Stability Control Technology of Deep Mine Rock Roadway with Large Cross Section and Soft Broken Surrounding Rock[J]. COAL SCIENCE AND TECHNOLOGY, 2013, (12).
    [10]Study on Surrounding Rock Control Technology of Large Cross Section Open-off Cut with Watery Broken Roof[J]. COAL SCIENCE AND TECHNOLOGY, 2013, (5).
  • Cited by

    Periodical cited type(18)

    1. 陈新明,孙金宇,焦华喆,王琪. 金属矿山硬质地层智能化掘进发展现状及展望. 黄金. 2025(02): 1-12 .
    2. 张家乐,杨明,张鲁鲁,初月朗,牛宾,杨谢生,梁程程,黎明镜,康一强. 煤矿深部巷道不良地段敞开式TBM施工关键技术. 建井技术. 2025(01): 36-43+31 .
    3. 严红,吴林,李桂臣,宋维斌. 煤矿岩巷TBM快速掘进研究进展与展望. 煤炭工程. 2025(01): 1-7 .
    4. 阳斌,李文华,艾浩泉,陶仁太,陈英博. 1种敞开式TBM推进液压缸洞内快速更换工艺研究及应用. 建筑机械. 2025(04): 102-107 .
    5. 李安云. 富水软岩缓倾长斜井敞开式TBM掘进研究. 矿业研究与开发. 2025(04): 78-87 .
    6. 刘睿. 基于BIM技术的煤矿井巷工程成本精准估计研究. 建井技术. 2024(01): 89-94+83 .
    7. 孙昊达,王毅,张杰,白刚,尚荣. “长掘长探”技术在TBM掘进巷道中的应用研究. 煤炭技术. 2024(05): 137-141 .
    8. 王小永,邓立营,杜立杰,全永威,赵向波,杨亚磊. V形TBM小曲线转弯半径适应性研究. 机械设计. 2024(09): 48-57 .
    9. 李勇,陈虎忠,朱航宇,廖永发. 金属矿山TBM掘进技术的应用与推广. 有色金属(矿山部分). 2024(06): 113-118 .
    10. 邵文琦,陈大勇,佟治,乔亮,杜浪浪,黄炳香,陈圣贺,高尚占,祁正飞,孙政. 煤矿岩巷掘进技术现状及展望. 中国矿业. 2024(11): 192-205 .
    11. 刘泉声,黄兴,潘玉丛,刘滨,邓鹏海. TBM在煤矿巷道掘进中的技术应用和研究进展. 煤炭科学技术. 2023(01): 242-259 . 本站查看
    12. 王勇,古长具,贺飞,冀畔俊,李超杰,李同想. 矿用TBM高效支护技术及安全防护装置设计与应用. 煤矿机电. 2023(01): 34-41 .
    13. 杨明,张鲁鲁,张家乐,王金祥,王念涛,杨谢生,阮杰,黎明镜,邓鑫. 矿用敞开式TBM施工仰拱块运输车研制及应用. 矿山机械. 2023(08): 16-22 .
    14. 王要平,张风林,徐火祥,冯依赞,张海骄,唐彬. TBM掘进煤矿巷道研究现状与展望. 科技资讯. 2023(19): 197-201 .
    15. 崔孟豪,姬会福,惠延波,张中伟,崔玉明,宋丹. 硬岩隧道掘进多臂协同钻孔技术研究. 煤炭科学技术. 2023(09): 261-273 . 本站查看
    16. 贺飞,鲁义强,代恩虎,田彦朝,吴斐,潘守辰,张盛,陈召. 煤矿岩巷TBM适应性与新技术发展. 煤炭科学技术. 2023(S1): 351-361 . 本站查看
    17. 王冰山,王大龙,汪义龙,陈存强,李永元,李克相,马新根,肖运智. 瓦斯治理巷小直径TBM刀盘设计研究——以白龙山煤矿一井为例. 煤炭科学技术. 2023(S2): 306-315 . 本站查看
    18. 张杰,张鑫. 煤矿巷道硬岩截割技术研究现状及发展趋势. 煤矿机械. 2022(11): 44-46 .

    Other cited types(7)

Catalog

    Article views (44) PDF downloads (305) Cited by(25)
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return