Abstract
In this article, slot-PM-assisted consequent-pole-PM machine (SPMA-CPMM) is proposed. The key is that the consequent-pole ferrite PMs are employed in the stator yoke to reduce the PM material cost largely, while a small amount of tangential magnetized rare-earth PMs is placed in the slot opening to improve the torque production. This proposed hybrid magnet design can greatly enhance the PM utilization ratio and reduce the PM cost while maintaining a relatively large torque density. In this article, the configurations of ferrite-PM machine (FPMM), consequent-pole ferrite-PM machine (CFPMM), and SPMA-CPMM are illustrated, while equivalent magnetic circuits (EMCs) of them are compared. Then, the electromagnetic performances of three machines are investigated and compared, which verifies the validity of the proposed machine.
Original language | English |
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Article number | 8106106 |
Journal | IEEE Transactions on Magnetics |
Volume | 58 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1 Aug 2022 |
Keywords
- Consequent-pole-PM
- ferrite PMs
- hybrid magnets
- rare-earth PMs
- slot-PM-assisted
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering