Journal of South China University of Technology (Natural Science Edition) ›› 2017, Vol. 45 ›› Issue (7): 25-32,40.doi: 10.3969/j.issn.1000-565X.2017.07.004

• Power & Electrical Engineering • Previous Articles     Next Articles

Cooling Channel Design of Permanent Magnetic Synchronous Motor Considering Heat Exchange and Pressure Loss

WAN Zhen-ping1 WEN Wan-yu1 WU Bo-xi1 FU Yong-qing2   

  1. 1.School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China 2.School of Design,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2016-11-02 Revised:2017-03-14 Online:2017-07-25 Published:2017-06-01
  • Contact: 万珍平( 1971-) ，男，博士，教授，主要从事现代加工理论及表面质量控制、表面功能结构先进制造及其作用机理等研究． E-mail:zhpwan@scut.edu.cn
  • About author:万珍平( 1971-) ，男，博士，教授，主要从事现代加工理论及表面质量控制、表面功能结构先进制造及其作用机理等研究．
  • Supported by:
    Supported by the National Natural Science Foundation of China( 51275174) and the Science and Technology Planning Project of Guangdong Province( 2014B010126003)

PDF

503

Abstract: As the existing researches on the water cooling system of motors applied to electric vehicles mainly focus on the heat exchange performance without taking full consideration into pressure loss,the influences of cooling channel parameters on heat exchange performance and pressure loss are analyzed theoretically for the frequently- used driving motor-permanent magnetic synchronous motor ( PMSM),finding that the twist number of cooling chan- nels influences heat exchange and pressure loss greatly,and that the transverse dimensions of cooling channel have little influence on heat transfer but have great influence on pressure loss.Thus,an optimal range of cooling channel parameters is obtained,with its validity being verified by simulating PMSM temperature field and pressure loss of cooling channels with optimized parameters through a finite element analysis.Finally,a new design method of cool- ing channels considering both heat exchange and pressure loss is presented.The research provides a reference for the design of water cooling system of PMSM with high power density.

Key words: electric vehicle, permanent magnetic synchronous motor, channel design, heat exchange perfor- mance, pressure loss

CLC Number: