Magnetostatic Field Analysis of Disk-Type Permanent-Magnet Motors

Abstract:

The aim of this paper is to analyze the magnetostatic field of disk-type permanent-magnet motors by utilizing the 1-D equivalent magnetic circuit approach and the finite-element method. A 1-D equivalent magnetic circuit model, which is analogous to an electric circuit model, of the disk-type permanent-magnet motor is proposed. The accuracy of the analytical model is verified by a commercial 3-D finite-element analysis (FEA) package. The result shows that the air-gap flux density is in good agreement with an acceptable error of about 1.66%. The presented magnetic circuit approach is not only an accurate technique in predicting the magnetostatic field of disk-type permanent-magnet motors, but also effectively reduces the computing time. It is especially suitable for the preliminary design and optimization of permanent-magnet motors with axial-flux topologies.

• Periodical: Applied Mechanics and Materials (Volumes 479-480)
• Pages: 390-395
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.479-480.390
• Online since: December 2013
• Authors: Yi Chang Wu, Yi Cheng Hong
• Keywords: Disk-Type Motor, Finite Element Analysis (FEA), Magnetostatic Field Analysis

References

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