Numerical investigation into thermal behavior of brushless permanent magnet motors

Lung-Ming Fu, Chiufeng Lin, Chinlung Chang, Jenhao Chang, Chien Hsiung Tsai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The performance of brushless permanent magnet motor for electric vehicle applications is simulated by commercial CFD codes Fluent 6.3. It is difficult to model motor winding area and to well pose the motor external boundary conditions for using CFD method. A possible approach to simplify the thermal resistance computation is to use an empirical equivalent thermal conductivity of the system winding impregnation and insulation. The empirical equivalent thermal conductivity is case sensitive and regressed in the experiment. The same is true for the boundary condition of motor. In this paper, we proposed a new model to compute equivalent thermal conductivity and overcome the above problem. This model takes advantage of the packing bed heat transfer model proposed by Zehner and Schlünder. Besides, the boundary conditions are also obtained by the numerical experiments. The validity of CFD method using in the present paper is validated utilizing the experimental data. The numerical data are concurred with the experimental data. As a result, the CFD method is shown to be a feasible method for modern thermal design for brushless permanent magnet motor.

Original languageEnglish
Title of host publicationAdvances in Mechanical Design
Pages1518-1522
Number of pages5
DOIs
Publication statusPublished - 2011 Mar 18
Event2nd International Conference on Manufacturing Science and Engineering, ICMSE 2011 - Guilin, China
Duration: 2011 Apr 92011 Apr 11

Publication series

NameAdvanced Materials Research
Volume199-200
ISSN (Print)1022-6680

Other

Other2nd International Conference on Manufacturing Science and Engineering, ICMSE 2011
CountryChina
CityGuilin
Period11-04-0911-04-11

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Fu, L-M., Lin, C., Chang, C., Chang, J., & Tsai, C. H. (2011). Numerical investigation into thermal behavior of brushless permanent magnet motors. In Advances in Mechanical Design (pp. 1518-1522). (Advanced Materials Research; Vol. 199-200). https://doi.org/10.4028/www.scientific.net/AMR.199-200.1518