Abstract
This paper proposes dual-stator permanent magnet Vernier (DS-PMV) machines for direct-drive applications. Also, the quantitative comparison of DS-PMV machines is carried out in terms of no-load performance and output torque characteristic. First, the operation principle is elaborated. Then, the theoretical expressions of air-gap magnetic fields are derived through the magnetic circuit approach. Moreover, the basic machine performances with different pole-slot configurations are quantitatively compared. The corresponding demonstration results are given, which verify that the designs without auxiliary teeth tend to have lower amplitudes of back electromotive force (EMF) harmonics, higher rated average torque, and lower torque ripple.
| Original language | English |
|---|---|
| Article number | 8104806 |
| Pages (from-to) | 1-6 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 55 |
| Issue number | 7 |
| Online published | 24 May 2019 |
| DOIs | |
| Publication status | Published - Jul 2019 |
Funding
ACKNOWLEDGMENT This work was supported in part by a grant (Project No. CityU 21201216) from the Research Grants Council of Hong Kong, China and in part by a grant (Project No. 6000675) from the City University of Hong Kong, Hong Kong, China.
Research Keywords
- Direct drive
- dual-stator (DS)
- high torque density
- permanent magnet (PM)
- Vernier machine
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