KIEE International Transaction on Electrical Machinery and Energy Conversion Systems

The Korean Institute of Electrical Engineers (대한전기학회)
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Self-Shielding Magnetized vs. Shaped Parallel-Magnetized PM Brushless AC Motors

  • Pang Y. (Department of Electronic & Electrical Engineering, University of Sheffield) ;
  • Zhu Z. Q. (Department of Electronic & Electrical Engineering, University of Sheffield) ;
  • Howe D. (Department of Electronic & Electrical Engineering, University of Sheffield)
  • Published : 2005.03.01
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Abstract

The performance of two designs of permanent magnet brushless motor, by having self-shielding magnetized magnets or sinusoidally shaped parallel-magnetized magnets with essentially sinusoidal airgap flux distributions, are compared. It is shown that the parallel-magnetized motor with shaped sintered NdFeB magnets can result in a higher airgap flux density and torque density than that of a self-shielding magnetized motor equipped with an anisotropic injection moulded NdFeB ring magnet.

Keywords

References

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