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Article Dans Une Revue COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering Année : 2016

Spectral modelling of force ripples in permanent magnet bearingless motors

Résumé

Purpose-This paper proposes an analytical model for the calculation of forces ripples in bearingless permanent magnet motor. Design/Methodology/Approach-The model is based on a spectral modeling of the forces based on a spectral analysis of the air-gap flux density Finding-The proposed methodology allow the prediction of the ripples of the levitation according the design of the machine and the topology of the winding. It can be used in the design procedure of bearingless motor in order to avoid mechanical resonance of the rotor shaft. Research limitations implications-This model cannot be used for high saturated machines. Originality/Value-The main originality of this paper consists on the evaluation of the field harmonics according to their sources and the contribution of the different harmonics to the force ripples. This can help the designer to focus on reducing or eliminating only the harmonics of flux density which create the force ripples.
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Dates et versions

hal-01629501 , version 1 (06-11-2017)

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Citer

Blaise Lapôtre, Noureddine Takorabet, Farid Meibody-Tabar, Ramdane Lateb, Joaquim da Silva. Spectral modelling of force ripples in permanent magnet bearingless motors. COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 2016, 35 (5), pp.1774-1785. ⟨10.1108/COMPEL-01-2016-0027⟩. ⟨hal-01629501⟩
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