高速大功率电机转子通风孔散热效率优化研究

熊万里; 徐光帅; 吕浪; 蒋旭光

doi:10.13433/j.cnki.1003-8728.2014.0522

高速大功率电机转子通风孔散热效率优化研究

doi: 10.13433/j.cnki.1003-8728.2014.0522

1.
湖南大学国家高效磨削工程技术研究中心, 长沙 410082;
2.
溧阳福思宝高速机械有限公司, 溧阳 213311

基金项目:

国家自然科学基金项目(51275163)

湖南省自然科学杰出青年基金项目

教育部新世纪优秀人才支持计划项目(NCET-10-0368)资助

详细信息

作者简介:
熊万里(1971-)，教授，博士生导师，研究方向为高速大功率电机技术和超高速超精密电主轴系统动力学，wan369@vip.sina.com

计量
- 文章访问数: 268
- HTML全文浏览量: 37
- PDF下载量: 8
- 被引次数: 0
出版历程
- 收稿日期: 2012-11-25
- 刊出日期: 2015-06-10

Optimizing Heat Dissipation Efficiency for Air-cooling Holes of Rotor of High-speed and Large-power Motor

1.
National Research Center for High Efficiency Grinding, Hunan University, Changsha 4l0082;
2.
Fospova Co., Ltd, Liyang 213311

摘要

摘要: 采用将转子与冷却气体流场实行分离的传统分析方法难以反映转子与冷却气流的热耦合作用,难以实现转子散热效率优化。提出基于流固耦合的高速大功率电机转子系统动态传热特性的分析方法,建立转子系统的流固耦合传热模型。利用建立的模型研究转速、冷却气流入口压力和速度,以及转子冷却孔分布、孔径和轴心距对转子温度场和散热效率的影响规律,提出了优化散热效率的具体途径。结果证明了所提出的计算方法和优化散热效率的具体措施的有效性。
- 高速大功率电机 /
- 温度场 /
- 流固耦合 /
- 优化 /
- CFD
Abstract: The heat generated by the rotor of a high-speed and large-power motor is very big. If the heat is not effectively removed by the cooling system of the rotor,the temperature of its bearing will rise greatly. When the motor is operating,its reliability and safety may be reduced,too. It is difficult for the traditional method that separates the rotor and its cooling gas flow field to show the heat coupling between the rotor and its cooling gas flow field and achieve heat dissipation efficiency optimization. Therefore we propose the method of dynamic heat transfer characteristics of the rotor of the high-speed and large-power motor based on fluid-solid coupling. The fluid-solid coupling heat transfer model of the rotor is established. The method and the model are used to study the effects of rotational speed,entrance pressure and velocity of cooling air flow,aperture,distribution and axial distance of the cooling hole of the rotor on its temperature field and heat dissipation efficiency. The heat dissipation efficiency of the rotor is optimized. The simulation and experimental results show that the heat dissipation efficiency optimization method is effective.
- boundary conditions /
- calculations /
- computational fluid dynamics /
- computer simulation /
- computer software

HTML全文

参考文献(13)

[1]	Lateb R，Enon J，Durantay L. High speed，high power electrical induction motor technologies for integrated compressors[J]. Electrical Machines and Systems，2009
[2]	李伟力，陈玉红，霍菲阳，等．大型水轮发电机转子旋转状态下磁极间流体流动与温度场分析[J]．中国电机工程学报，2012，32(9): 132-139 Li W L，Chen Y H，Huo F Y，et al. Fluid flow and temperature field analysis between two poles of a large air-cooled hydro-generator rotor in rotation [J]．Proceedings of the Chinese Society of Electrical Engineering，2012，32(9): 132-139 (in Chinese)
[3]	路义萍，郑国丽，韩家德，等．副槽及出风口结构尺寸对汽轮发电机转子三维温度场的影响[J]．中国电机工程学报，2011，31(26): 90-96 Lu Y P，Zheng G L，Han J D，et al. Effect of structure size of sub-slot and its air outlet on three-dimensional temperature field for turbo-generator rotor [J]．Proceedings of the Chinese Society of Electrical Engineering，2011，31(26): 90-96 (in Chinese)
[4]	王艳武，杨立，陈翾，等．异步电机转子三维温度场及热应力场研究[J]．电机与控制学报，2010，14(6): 27-32 Wang Y W，Yang l，Chen X，et al. Study on 3D thermal field and thermal stress field of the induction motor rotor[J]. Electric Machines and Control，2010，14(6): 27-32 (in Chinese)
[5]	魏静微，杨崑，谢颖，等．高转差异步发电机转子的温度场及旋转热管的应用[J].电机与控制学报，2011，15(7):82-86 Wei J W，Yang K，Xie Y，et al. 3D temperature field of high slip asychronous generator rotor and analysis of rotating heat tube [J]. Electric Machines and Control，2011，15(7): 82-86 (in Chinese)
[6]	Kolondzovski Z，Belahcen A，Arkkio A. Comparative thermal analysis of different rotor types for a high-speed permanent-magnet electrical machine[J]. IET Electric Power Applications，2009，3(4): 279-288
[7]	Liu H P，Lelos V，Hearn C S. Transient 3-D thermal analysis for an air-cooled induction motor[J]. IEEE 2005: 417-420
[8]	陈琳，刘长红，姚若萍．流场分析轴向通风冷却电机的转子温度[J]．大电机技术，2005，(4): 12-15 Chen L，Liu C H，Yao R P. Temperature analysis of axial ventilation cooling motor rotor with flow field analysis method [J]. Large Electric Machine and Hydraulic Turbine，2005，(4): 12-15 (in Chinese)
[9]	路义萍，李伟力，马贤好，等．大型空冷汽轮发电机转子温度场数值模拟[J]．中国电机工程学报，2007，27(12): 7-13 Lu Y P，Li W L，Ma X H，et al. Numerical simulation of temperature field in rotor of large turbo generator with air- coolant [J]. Proceedings of the Chinese Society of Electrical Engineering，2007，27(12): 7-13 (in Chinese)
[10]	路义萍，阴文豪，谈和平，等．汽轮发电机转子三维温度场耦合计算[J]．工程热物理学报，2008，29(4): 659-661 Lu Y P，Yin W H，Tan H P，et al. Coupled calculation of three dimentional temperature field in rotor of turbogenerator[J]. Journal of Engineering Thermophysics，2008，29(4): 659-661 (in Chinese)
[11]	Lncropera F P，Dewitt D P. Fundamentals of heat and mass transfer[M]. Beijing:China Chemistry Industry Press，2007
[12]	郭荣良，郭清南，祝世兴．流体力学及应用[M]．北京:机械工业出版社，1985: 60-100 Guo R L，Guo Q N，Zhu S X. Fluid dynamics and application[M]. Beijing: China Machine Industry Press，1985: 60-100 (in Chinese)
[13]	夏海霞，李桃，倪光正．发电机通风系统流场及转子温度场分析[J]．电机与控制学报，2007，11(5): 472-476 Xia H X，Li T，Ni G Z. Analysis of ventilation fluid field and rotor temperature field of a generator [J]. Electric Machines and Control，2007，11(5): 472-476 (in Chinese)