Design and Analysis of the Ventilation Structure for a Permanent Magnet Wind Generator

被引：0
|
作者：
Zhu G. [1 ]
Liu X. [1 ]
Li L. [1 ,2 ]
Gao S. [1 ,2 ]
Tong W. [3 ]
机构：
[1] Tianjin Key Laboratory of Advanced Technology of Electrical Engineering and Energy, Tianjin Polytechnic University, Tianjin
[2] School of Mechanical Engineering, Tianjin Polytechnic University, Tianjin
[3] National Engineering Research Center for Rare Earth Permanent Magnet Machines, Shenyang University of Technology, Shenyang
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2019年 / 34卷 / 05期
关键词：
Fluid-flow field; Permanent magnet wind generator; Thermal field; Ventilation structure;
D O I：
10.19595/j.cnki.1000-6753.tces.L80756
中图分类号：
学科分类号：
摘要：
With the increasing development of the unit capacity and the electromagnetic load, the rational design of the cooling structure has become an important task in the research and development of permanent magnet (PM) wind generators. A 1.65MW forced-air-cooled direct-drive PM wind generator is investigated based on the computation fluid dynamics (CFD) and the numerical heat transfer theory. The finite volume method (FVM) is employed to analyze the fluid flow and the temperature distributions of the machine with a 3-D fluidic-thermal coupled model. A self-circulated ventilation system is proposed and analyzed to solve the problems of the spaces taken up and the maintain difficulties introduced by the external blowers. The cooling air is driven by the structural plates as the centrifugal fan to cool the generator by passing through the axial and radial vents. The cooling effects of the system with different ventilation structures and sizes are compared, and the proper one is presented. The achievements of this paper can provide certain guidance for improving the heat dissipation capacity of large-scale PM wind generators. © 2019, Electrical Technology Press Co. Ltd. All right reserved.
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页码：946 / 953
页数：7
相关论文
共 20 条
  • [1] Nian H., Cheng P., He Y., Review on operation techniques for DFIG-based wind energy conversion systems under network faults, Proceedings of the CSEE, 35, 16, pp. 4184-4197, (2015)
  • [2] Wang F., Application and development tendency of PM machines in wind power generation system, Transactions of China Electrotechnical Society, 27, 3, pp. 12-24, (2012)
  • [3] Ding S., Sun Z., Investigation of fluid field and thermal field coupled for permanent magnet wind generator, Transactions of China Electrotechnical Society, 27, 11, pp. 118-124, (2012)
  • [4] Li W., Li D., Li J., Et al., Influence of rotor radial ventilation ducts number on temperature distribution of rotor excitation winding and fluid flow state between two poles of a fully air-cooled hydro-generator, IEEE Transactions on Industrial Electronics, 64, 5, pp. 3767-3775, (2017)
  • [5] Boglietti A., Cavagnino A., Staton D., Et al., Evolution and modern approaches for thermal analysis of electrical machines, IEEE Transactions on Industrial Electronics, 56, 3, pp. 871-882, (2009)
  • [6] Wang X., Du J., CFD analysis of heat transfer characterization in spiral channel cooling for permanent magnet electric machine in EVs, Transactions of China Electrotechnical Society, 33, 4, pp. 955-963, (2018)
  • [7] Tong W., Sun J., Shu S., Et al., Application of different numerical methods in 3D thermal analysis for fan-ventilated permanent magnet synchronous machines, Transactions of China Electrotechnical Society, 32, pp. 151-159, (2017)
  • [8] Polikarpova M., Ponomarev P., Roytta P., Direct liquid cooling for an outer-rotor direct-drive permanent magnet synchronous generator for wind farm applications, IET Electric Power Applications, 9, 8, pp. 523-532, (2015)
  • [9] Ding S., Guo B., Sun Z., Ventilation structure optimization and performance analyses of permanent magnet wind generators, Proceedings of the CSEE, 33, 9, pp. 122-128, (2013)
  • [10] Ge M., Gao J., Deng Y., Et al., Study on design of cooling system for a 1.5MW wind turbine generator, Acta Energiae Solaris Sinica, 38, 3, pp. 648-654, (2017)
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