Analysis of Stator Slots and Rotor Pole Pairs Combinations of Rotor-Permanent Magnet Flux-Switching Machines

Peng Su, Wei Hua, Mingjin Hu, Zhongze Wu, Jikai Si, Zhe Chen, Ming Cheng

Research output: Contribution to journalArticle

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Abstract

This paper investigates the influence of stator slots and rotor pole pairs combinations on torque performances in rotor permanent magnet flux switching machines. Based on a magnetomotive force permeance model, the candidates of stator slots and rotor pole pairs combinations with higher torque capability can be determined by analysing the permanent magnet magnetomotive force and winding factor. Meanwhile, the candidates with a lower torque ripple can be obtained by referring to the cogging torque, which is related to the greatest common divisor of stator slots and rotor pole pairs. In addition, from the field modulation principle, the rotor-permanent magnet flux-switching machines with the same fundamental magnetic loadings and winding factors exhibit identical fundamental harmonic toque, but different modulation harmonic components. Finally, four candidates with attractive torque performance are chosen, and the characteristics are verified by finite element analysis and experiments.
Original languageEnglish
JournalIEEE Transactions on Industrial Electronics
Early online date4 Mar 2019
DOIs
Publication statusE-pub ahead of print - 4 Mar 2019

Cite this

Analysis of Stator Slots and Rotor Pole Pairs Combinations of Rotor-Permanent Magnet Flux-Switching Machines. / Su, Peng; Hua, Wei; Hu, Mingjin; Wu, Zhongze; Si, Jikai; Chen, Zhe; Cheng, Ming.

In: IEEE Transactions on Industrial Electronics, 04.03.2019.

Research output: Contribution to journalArticle

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AU - Si, Jikai

AU - Chen, Zhe

AU - Cheng, Ming

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AB - This paper investigates the influence of stator slots and rotor pole pairs combinations on torque performances in rotor permanent magnet flux switching machines. Based on a magnetomotive force permeance model, the candidates of stator slots and rotor pole pairs combinations with higher torque capability can be determined by analysing the permanent magnet magnetomotive force and winding factor. Meanwhile, the candidates with a lower torque ripple can be obtained by referring to the cogging torque, which is related to the greatest common divisor of stator slots and rotor pole pairs. In addition, from the field modulation principle, the rotor-permanent magnet flux-switching machines with the same fundamental magnetic loadings and winding factors exhibit identical fundamental harmonic toque, but different modulation harmonic components. Finally, four candidates with attractive torque performance are chosen, and the characteristics are verified by finite element analysis and experiments.

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