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Modeling and Analysis of a New 2-D Halbach Array for Magnetically Levitated Planar Motor

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2 Author(s)
Junrong Peng ; Sch. of Mech. Sci. & Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China ; Yunfei Zhou

This paper presents two models of the flux density distribution of a new 2-D Halbach magnet array for magnetically levitated planar motor. The harmonic model is derived by the scalar magnetic potential equation. The analytical model for real-time control is built by taking the amplitude of the flux density at a certain air-gap as the effective amplitudes. Two models are validated by the finite-element method. It is verified that the new magnet array has low high-order harmonics, and can produce larger thrust force with low force ripples, which can be used to improve the performance of the magnetically levitated planar motor.

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Magnetics, IEEE Transactions on  (Volume:49 ,  Issue: 1 )