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A Novel Consequent-Pole Modular-Mover Linear Permanent Magnet Vernier Machine for Thrust Ripple and Cost Reduction.
- Source :
- IEEE Transactions on Industry Applications; Nov/Dec2021, Vol. 57 Issue 6, p5841-5850, 10p
- Publication Year :
- 2021
-
Abstract
- Recently, linear permanent magnet vernier machine (LPMVM) is attracting more and more attention due to its high thrust density, high efficiency, and simple structure at low-speed operation, which makes it a preferable solution for direct-drive linear motion applications. In order to further reduce the thrust ripple and the cost of LPMVM, a novel consequent-pole modular-mover LPMVM (CM-LPMVM) is proposed and analyzed in this article. Due to the dual-flux-modulation effect, the proposed CM-LPMVM can exhibit a low thrust ripple (∼3.2% of the average thrust) and high thrust density (∼387 kN/m3) at a low current density of 3 A/mm2, as well as reduce nearly half of the PM usage at the same time. The performance improvement of the proposed CM-LPMVM is verified by the comparison to a regular modular-mover LPMVMs, using the finite-element method. Finally, three prototypes are built and tested. The experimental results match well with the analytical data, showing the superiority of the proposed CM-LPMVM. [ABSTRACT FROM AUTHOR]
- Subjects :
- COST control
THRUST
VERNIERS
FINITE element method
Subjects
Details
- Language :
- English
- ISSN :
- 00939994
- Volume :
- 57
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Industry Applications
- Publication Type :
- Academic Journal
- Accession number :
- 153854423
- Full Text :
- https://doi.org/10.1109/TIA.2021.3106277