Paper Title:
Numerical Investigation into Thermal Behavior of Brushless Permanent Magnet Motors
  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.

  Info
Periodical
Advanced Materials Research (Volumes 199-200)
Edited by
Jianmin Zeng, Zhengyi Jiang, Taosen Li, Daoguo Yang and Yun-Hae Kim
Pages
1518-1522
DOI
10.4028/www.scientific.net/AMR.199-200.1518
Citation
L. M. Fu, C. Lin, C. L. Chang, J. Chang, C. H. Tsai, "Numerical Investigation into Thermal Behavior of Brushless Permanent Magnet Motors", Advanced Materials Research, Vols. 199-200, pp. 1518-1522, 2011
Online since
February 2011
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$32.00
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