Design and Analysis of Halbach Permanent Magnet Synchronous Motors Based on FEM Models

Zhong Chao Wei; Xi Chen

doi:10.4028/www.scientific.net/AMM.551.320

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 551Design and Analysis of Halbach Permanent Magnet...

Design and Analysis of Halbach Permanent Magnet Synchronous Motors Based on FEM Models

Abstract:

This paper studies the application of Halbach array in optimal design of Permanent Magnet Synchronous Motors (PMSM). First, the paper demonstrates the intrinsic sinusoidal magnetic field and one-side magnetic shielding effect produced by Halbach array in FEM. Afterward, a serious of Halbach motor models based on different segment numbers per pole are established combined with Ansoft. Next, the waveform and harmonic contents of air-gap flux density are analysed. Then, the relationship between the segment numbers per pole and cogging torque are explored. Finally, the power-angle curves for coreless/core rotors are contrasted. The above results explain why and how Halbach array can be applied in PMSM design to reduce harmonic components for air-gap flux density, increase power density and decrease moment of inertia.

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Periodical:

Applied Mechanics and Materials (Volume 551)

Pages:

320-325

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.551.320

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Online since:

May 2014

Authors:

Zhong Chao Wei*, Xi Chen

Keywords:

Coreless Rotor, Finite Element Method (FEM), Halbach Array, PMSM

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References

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