Abstract
In order to solve the problem of severe stator winding heating due to the single cooling structure of a permanent magnet synchronous motor for electric vehicles, and to further improve the heat transfer capability of the permanent magnet synchronous motor, a new water-cooled structure is proposed in which cooling pipes are placed at the stator yoke to increase the heat transfer area. In order to evaluate the heat transfer effect of this new water-cooled structure, this paper takes a 50 kW permanent magnet synchronous motor for electric vehicles as the research object. By establishing a 3-D full-domain fluid-solid coupled heat transfer model, setting boundary conditions and reasonable assumptions, the full-domain fluid-heat coupled field of the permanent magnet synchronous motors is calculated numerically, and the fluid-flow characteristics and heat transfer variation laws of the new water-cooled structure are analyzed. The results show that compared with the original cooling structure, the maximum temperature drop of stator winding and permanent magnet can reach 5.23% and 11.17%, respectively. The results obtained can provide a reference for future research on the thermal performance and water-cooled structure optimization of permanent magnet synchronous motor for electric vehicles.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
