Jafari, Reza;
Asef, Pedram;
Ardebili, Mohammad;
Derakhshani, Mohammad Mahdi;
(2023)
A High Thrust Force Spoke-Type Linear Permanent Magnet Vernier Machine with Reduced Thrust Force Ripple.
In:
2023 International Conference on Smart Energy Systems and Technologies (SEST).
IEEE: Mugla, Turkiye.
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Abstract
Linear permanent magnet vernier machines (LP-MVMs) have become prevalent in direct-drive applications, such as wave energy harvesting systems and traction applications, owing to their distinctive merit of providing high thrust force at low speeds. In this paper, a novel structure of a double-sided spoke-type LPMVM is proposed, which takes advantage of the magnetic gearing effect. The proposed double-sided linear machine exploits spoke-type permanent magnets (PMs) and one of the stators is displaced as half of the stator tooth pitch to obtain the flux-focusing effect. The thrust force ripple of the proposed spoke-type LPMVM can be decreased by adjusting the stator end-teeth and mitigating the detrimental impact of the longitudinal effect. The proposed LPMVM with adjusted end-teeth offers a noteworthy potential in terms of high thrust force density, increased power factor, and reduced thrust force ripple, which makes it a suitable candidate for various direct-drive applications. The proposed LPMVM is compared with a conventional surface-mounted LPMVM and a spoke-type LP-MVM without adjusting end-teeth to verify the superiority of the new structure. Also, transient and steady-state thermal analyses of the proposed LPMVM are conducted to confirm its thermal stability. A two-dimensional finite element analysis (2D-FEA) is adopted to prove the outstanding characteristics of the proposed double-sided spoke-type linear vernier structure.
| Type: | Proceedings paper |
|---|---|
| Title: | A High Thrust Force Spoke-Type Linear Permanent Magnet Vernier Machine with Reduced Thrust Force Ripple |
| Event: | 2023 International Conference on Smart Energy Systems and Technologies (SEST) |
| Dates: | 4 Sep 2023 - 6 Sep 2023 |
| ISBN-13: | 979-8-3503-9790-1 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/sest57387.2023.10257327 |
| Publisher version: | https://doi.org/10.1109/sest57387.2023.10257327 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Reactive power; Force; Stators; Thermal conductivity; Permanent magnets; Thermal analysis; Steady-state |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10178632 |
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