留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

中型高压电机轴径向混合通风结构的强化散热特性模拟

彭德其 周晓辉 晏才松 李广

彭德其, 周晓辉, 晏才松, 李广. 中型高压电机轴径向混合通风结构的强化散热特性模拟[J]. 机械科学与技术, 2023, 42(1): 75-82. doi: 10.13433/j.cnki.1003-8728.20200611
引用本文: 彭德其, 周晓辉, 晏才松, 李广. 中型高压电机轴径向混合通风结构的强化散热特性模拟[J]. 机械科学与技术, 2023, 42(1): 75-82. doi: 10.13433/j.cnki.1003-8728.20200611
PENG Deqi, ZHOU Xiaohui, YAN Caisong, LI Guang. Simulation Study on Heat Dissipation Enhancement Characteristics of Axial and Radial Mixed Ventilation Structure for Medium-sized High-voltage Motor[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(1): 75-82. doi: 10.13433/j.cnki.1003-8728.20200611
Citation: PENG Deqi, ZHOU Xiaohui, YAN Caisong, LI Guang. Simulation Study on Heat Dissipation Enhancement Characteristics of Axial and Radial Mixed Ventilation Structure for Medium-sized High-voltage Motor[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(1): 75-82. doi: 10.13433/j.cnki.1003-8728.20200611

中型高压电机轴径向混合通风结构的强化散热特性模拟

doi: 10.13433/j.cnki.1003-8728.20200611
基金项目: 

湖南省战略性新兴产业项目 2019GK4021

详细信息
    作者简介:

    彭德其(1972-), 教授, 硕士生导师, 研究方向为过程强化与节能环保, pengshuaike@163.com

  • 中图分类号: TM301.4

Simulation Study on Heat Dissipation Enhancement Characteristics of Axial and Radial Mixed Ventilation Structure for Medium-sized High-voltage Motor

  • 摘要: 为了提升电机的通风冷却性能、降低其运行温升,以一台400 kW中型高压电机为例,采用轴径向混合通风结构,通过磁-流-固耦合模拟研究整体电机稳态条件下温升影响规律,提出温升均匀性系数对两种通风结构的冷却效果进行量化评价。研究结果表明:相对于轴向通风结构,混合通风结构温升分布更加均匀,在电机内层和外层绕组温升均匀性系数分别提高了85.78%和6.23%;进一步探讨了径向风道高度及数量对电机温升的影响,径向风道高度为6 mm、径向风道数量为13个时冷却效果最好。
  • 图  1  样机物理模型

    图  2  气隙剖面图

    图  3  网格划分

    图  4  电机整体温度分布

    图  5  定子铁芯温度分布

    图  6  定子绕组温度分布

    图  7  定子绕组沿轴向温升分布

    图  8  混合通风结构电机物理模型

    图  9  径向风道内流速分布

    图  10  混合通风结构电机整体温度分布

    图  11  混合通风结构定子铁芯温度分布

    图  12  混合通风结构定子绕组温度分布

    图  13  混合通风结构定子绕组沿轴向温升分布

    图  14  径向风道高度对电机各部件温升影响

    图  15  径向风道数量对电机各部件温升影响

    图  16  径向风道高度及数量对电机各部件温升影响

    表  1  电机基本参数

    参数 数值
    功率/kW 400
    转速/(r·min-1) 991
    定子内外径/mm 450/740
    转子内外径/mm 230/446.8
    气隙长度/mm 1.6
    铁芯长度/mm 790
    下载: 导出CSV

    表  2  网格无关性验证

    网格数量/×104 265 320 367 412
    绕组温升/K 76.9 76.0 75.3 74.9
    下载: 导出CSV

    表  3  两种结构温升分布均匀性系数

    均匀性系数η 轴向通风结构 轴径向混合通风结构 提高幅度
    内层绕组 8.51 1.21 85.78%
    外层绕组 5.62 5.27 6.23%
    下载: 导出CSV

    表  4  不同径向风道高度电机各部件损耗

    损耗/W 径向风道高度/mm
    6 8 10
    绕组铜耗 4 302.37 4 393.82 4 507.90
    定子铁耗 4 550.23 4 705.15 4 864.55
    转子铜耗 3 427.27 3 441.90 3 448.46
    杂散损耗 5 080.00 5 080.00 5 080.00
    下载: 导出CSV

    表  5  不同径向风道数电机各部件损耗

    损耗/W 径向风道数量/个
    12 13 14
    绕组铜耗 4 291.74 4 302.37 4 324.04
    定子铁耗 4 515.94 4 550.23 4 583.92
    转子铜耗 3 429.59 3 427.27 3 436.07
    杂散损耗 5 080.00 5 080.00 5 080.00
    下载: 导出CSV
  • [1] JURKOVIC S, RAHMAN K M, MORGANTE J C, et al. Induction machine design and analysis for general motors e-assist electrification technology[J]. IEEE Transactions on Industry Applications, 2015, 51(1): 631-639 doi: 10.1109/TIA.2014.2330057
    [2] 杜海, 曲延滨, 张鹏. 新型旋转电磁热机流体流动与传热的耦合计算与实验[J]. 电工技术学报, 2015, 30(12): 291-297 https://www.cnki.com.cn/Article/CJFDTOTAL-DGJS201512036.htm

    DU H, QU Y B, ZHANG P. Coupling calculation and experiment of fluid flow and heat transfer of a new rotating induction heater[J]. Transactions of China Electrotechnical Society, 2015, 30(12): 291-297 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DGJS201512036.htm
    [3] KRAIKITRAT K, RUANGSINCHAIWANICH S. Thermal effect of unbalanced voltage conditions in induction motor by FEM[C]//2011 International Conference on Electrical Machines and Systems (ICEMS). Beijing: IEEE, 2011: 1-4
    [4] 刘苹, 张小平, 匡斯建, 等. 电机温度场分析中三维有限元模型网格划分方法[J]. 电子测量与仪器学报, 2019, 33(8): 173-178 https://www.cnki.com.cn/Article/CJFDTOTAL-DZIY201908023.htm

    LIU P, ZHANG X P, KUANG S J, et al. 3D finite element model mesh division method in motor temperature field analysis[J]. Journal of Electronic Measurement and Instrumentation, 2019, 33(8): 173-178 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DZIY201908023.htm
    [5] LI Y, XIE Y, WANG Z. Three-dimensional fluid field and thermal field research of squirrel-cage induction motors operating in broken bar fault[C]//2015 IEEE International Magnetics Conference (INTERMAG). Beijing: IEEE, 2015
    [6] 丁树业, 夏之慧, 李海玲, 等. 径向通风电机流体流动及传热特性分析[J]. 哈尔滨理工大学学报, 2019, 24(1): 34-40 https://www.cnki.com.cn/Article/CJFDTOTAL-HLGX201901007.htm

    DING S Y, XIA Z H, LI H L, et al. Analysis of fluid flow and heat transfer characteristics for radial ventilation generator[J]. Journal of Harbin University of Science and Technology, 2019, 24(1): 34-40 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-HLGX201901007.htm
    [7] 丁树业, 仵程程. 具有径向通风结构的5兆瓦双馈风力发电机内流热特性[J]. 电机与控制学报, 2019, 23(10): 68-76 https://www.cnki.com.cn/Article/CJFDTOTAL-DJKZ201910009.htm

    DING S Y, WU C C. Characteristics of fluid flow and heat transfer for a 5 megawatt wind generator with radial ventilation structure[J]. Electric Machines and Control, 2019, 23(10): 68-76 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DJKZ201910009.htm
    [8] 霍菲阳, 李勇, 李伟力, 等. 大型空冷汽轮发电机定子通风结构优化方案的计算与分析[J]. 中国电机工程学报, 2010, 30(6): 69-75 https://www.cnki.com.cn/Article/CJFDTOTAL-ZGDC201006012.htm

    HUO F Y, LI Y, LI W L, et al. Calculation and analysis on stator ventilation structure of different optimum proposal in air-cooled turbogenerator[J]. Proceedings of the CSEE, 2010, 30(6): 69-75 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGDC201006012.htm
    [9] 李伟力, 杨雪峰, 顾德宝, 等. 多风路空冷汽轮发电机定子内流体流动与传热耦合计算与分析[J]. 电工技术学报, 2009, 24(12): 24-31 https://www.cnki.com.cn/Article/CJFDTOTAL-DGJS200912006.htm

    LI W L, YANG X F, GU D B, et al. Calculation and analysis of fluid flow and heat transfer of air-cooled turbo-generator with multipath ventilation[J]. Transactions of China Electrotechnical Society, 2009, 24(12): 24-31 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DGJS200912006.htm
    [10] 李伟力, 王耀玉, 黄东洙, 等. 转子通风结构对永磁电机转子流体场和温度场的影响[J]. 北京交通大学学报, 2015, 39(2): 48-54 https://www.cnki.com.cn/Article/CJFDTOTAL-BFJT201502009.htm

    LI W L, WANG Y Y, HUANG D Z, et al. Influence of the rotor ventilation structure on the rotor fluid and temperature field of the PMSM[J]. Journal of Beijing Jiaotong University, 2015, 39(2): 48-54 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-BFJT201502009.htm
    [11] XIONG B, GU G B, RUAN L, et al. Studies on the structure of radial ventilation channel to improve the cooling capacity of large turbo generator stator[C]//2014 17th International Conference on Electrical Machines and Systems (ICEMS). Hangzhou: IEEE, 2014: 354-357
    [12] LI W L, HAN J C, HUO F Y, et al. Influence of the end ventilation structure change on the temperature distribution in the end region of large water-hydrogen-hydrogen cooled turbogenerator[J]. IEEE Transactions on Energy Conversion, 2013, 28(2): 278-288
    [13] 温嘉斌, 鄢鸿羽. 定子通风槽钢对通风沟内流体流动形态的影响[J]. 电机与控制学报, 2010, 14(11): 58-62+68 https://www.cnki.com.cn/Article/CJFDTOTAL-DJKZ201011011.htm

    WEN J B, YAN H Y. Influence of stator ventilation channel on fluid flow pattern inside ventilation duct[J]. Electric Machines and Control, 2010, 14(11): 58-62+68 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DJKZ201011011.htm
    [14] 温嘉斌, 侯健, 于喜伟. 定子通风槽钢对中型高压电机内温度场的影响[J]. 电机与控制学报, 2016, 20(8): 40-47 https://www.cnki.com.cn/Article/CJFDTOTAL-DJKZ201608007.htm

    WEN J B, HOU J, YU X W. Influence of stator ventilation channel on the temperature field in the middle-size high voltage motor[J]. Electric Machines and Control, 2016, 20(8): 40-47 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DJKZ201608007.htm
    [15] 温嘉斌, 刘艳翠, 姜天一, 等. 中型高压电机内风扇流体分析与温升计算[J]. 电机与控制学报, 2018, 22(4): 33-41 https://www.cnki.com.cn/Article/CJFDTOTAL-DJKZ201804006.htm

    WEN J B, LIU Y C, JIANG T Y, et al. Analysis of fluid field of the internal fan and calculation of temperature rise for medium-size high-voltage asynchronous motor[J]. Electric Machines and Control, 2018, 22(4): 33-41 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DJKZ201804006.htm
    [16] 韩家德, 孙鹏, 朱凌波, 等. 立式鼠笼异步电动机三维CFD热计算[J]. 电机与控制学报, 2020, 24(12): 55-61 https://www.cnki.com.cn/Article/CJFDTOTAL-DJKZ202012008.htm

    HAN J D, SUN P, ZHU L B, et al. 3D CFD thermal calculation for a vertical asynchronous motor with a squirrel-cage rotor[J]. Electric Machines and Control, 2020, 24(12): 55-61 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DJKZ202012008.htm
    [17] 谢颖, 郭金鹏, 单雪婷, 等. 油田抽油机用感应电动机三维瞬态温度场计算分析[J]. 电机与控制学报, 2019, 23(10): 59-67 https://www.cnki.com.cn/Article/CJFDTOTAL-DJKZ201910008.htm

    XIE Y, GUO J P, SHAN X T, et al. Three-dimensional transient temperature field calculation and analysis of induction motor for oilfield pumping unit[J]. Electric Machines and Control, 2019, 23(10): 59-67 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DJKZ201910008.htm
    [18] 张凤阁, 蒋晓东, 李应光, 等. 新型磁障转子无刷双馈电机热计算[J]. 中国电机工程学报, 2018, 38(9): 2745-2752 https://www.cnki.com.cn/Article/CJFDTOTAL-ZGDC201809024.htm

    ZHANG F G, JIANG X D, LI Y G, et al. Thermal calculation on brushless doubly-fed machines with a magnetic barrier rotor[J]. Proceedings of the CSEE, 2018, 38(9): 2745-2752 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGDC201809024.htm
    [19] 谢颖, 李洋洋, 单雪婷. 笼型感应电机流体流动对温度场分布的影响[J]. 电机与控制学报, 2017, 21(2): 55-62 https://www.cnki.com.cn/Article/CJFDTOTAL-DJKZ201702007.htm

    XIE Y, LI Y Y, SHAN X T. Influences of 3D fluid field for squirrel-cage induction motors on thermal field distribution[J]. Electric Machines and Control, 2017, 21(2): 55-62 (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DJKZ201702007.htm
    [20] XIE Y, GUO J P, CHEN P, et al. Coupled fluid-thermal analysis for induction motors with broken bars operating under the rated load[J]. Energies, 2018, 11(8): 2024
    [21] HATZIATHANASSIOU V, XYPTERAS J, ARCHONTOULAKIS G. Electrical-thermal coupled calculation of an asynchronous machine[J]. Archiv für Elektrotechnik, 1994, 77(2): 117-122
    [22] 贾志超. 产品型式试验报告[R]. 湘潭: 湘潭电机股份有限公司, 2020

    JIA Z C. Product type test report[R]. Xiangtan: Xiangtan Electric Manufacturing Co., Ltd., 2020 (in Chinese)
    [23] 陈世坤. 电机设计[M]. 2版. 北京: 机械工业出版社, 2013

    CHEN S K. Motor design[M]. 2nd ed. Beijing: China Machine Press, 2013 (in Chinese)
  • 加载中
图(16) / 表(5)
计量
  • 文章访问数:  153
  • HTML全文浏览量:  123
  • PDF下载量:  24
  • 被引次数: 0
出版历程
  • 收稿日期:  2021-04-22
  • 刊出日期:  2023-01-25

目录

    /

    返回文章
    返回