Design of a Chamfered Structure on Consequent-Pole Vernier Permanent-Magnet Machine

The consequent-pole (CP) Vernier permanent-magnet (VPM) machine has been developed over the last decade. In VPM machine, the CP structure can produce considerable torque with a half volumn of the PMs compared with the regular structure, so the cost is reduced and the mechanical strength is increased...

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Bibliographic Details
Published inEnergies (Basel) Vol. 15; no. 20; p. 7780
Main Authors Ma, Jien, Xu, Bowen, Wu, Qiyi, Luo, Chao, Lin, Qiu, Fang, Youtong
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.10.2022
Subjects
Candidates
Chamfering
consequent-pole
Copper loss
Design and construction
Influence
Machinery
Magneto-electric machines
Magnets, Permanent
Mechanical properties
Permanent magnets
permanent-magnet machine
Permeability
Power factor
Torque
Vernier machine
China
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Summary:The consequent-pole (CP) Vernier permanent-magnet (VPM) machine has been developed over the last decade. In VPM machine, the CP structure can produce considerable torque with a half volumn of the PMs compared with the regular structure, so the cost is reduced and the mechanical strength is increased. In this paper, an improvement of chamfering structure on a CPVPM machine is proposed to alleviate the flux leakage and increase the torque density. The chamfered structure is easily machined and will not influence the robustness of the rotor. The comparison results show that under the same volume and copper loss constraint, the proposed structure has smaller cogging torque, smaller torque ripple, larger torque density and larger power factor.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15207780