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Energies 2017, 10(10), 1479; https://doi.org/10.3390/en10101479

Modeling and Static Analysis of Primary Consequent-Pole Tubular Transverse-Flux Flux-Reversal Linear Machine

1
College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, Jiangsu, China
2
ESTUN AUTOMATION TECHNOLOGY Co., LTD, Nanjing 211106, Jiangsu, China
*
Authors to whom correspondence should be addressed.
Received: 4 August 2017 / Revised: 15 September 2017 / Accepted: 18 September 2017 / Published: 24 September 2017
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Abstract

A novel primary consequent-pole tubular transverse-flux flux-reversal linear machine (TTFFRLM) is proposed in this paper. The permanent magnets (PMs) of the machine are located on the inner surface of the short teeth of the primary iron cores for reducing the amount of PM in long stroke drive systems, and the primary is easily manufactured. The structure and principle of this machine are analyzed in detail. Based on the unit machine, a no-load equivalent magnetic circuit model is established by using the magnetic circuit method. Then, the equations of the no-load back electromotive force (back-EMF) and the electromagnetic thrust force are deduced. The simulation models of the unit machine are established by equivalent 2D finite element method (FEM) for saving computation time, and the static characteristics, including the flux field, the no-load back-EMF, and the electromagnetic thrust force, are analyzed. Detailed simulation and experimental results of a three-phase 4-poles 12-slots machine are given. The results verify the correctness and effectiveness of topology, model, and analysis method of the proposed TTFFRLM. Compared with the conventional TTFFRLM, the proposed prototype has the advantages of a lower cost and smaller electromagnetic thrust force ripple. View Full-Text
Keywords: permanent magnet linear machine; tubular; primary consequent-pole; magnetic circuit method; equivalent 2D finite element method permanent magnet linear machine; tubular; primary consequent-pole; magnetic circuit method; equivalent 2D finite element method
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Dong, D.; Huang, W.; Bu, F.; Wang, Q.; Jiang, W.; Lin, X. Modeling and Static Analysis of Primary Consequent-Pole Tubular Transverse-Flux Flux-Reversal Linear Machine. Energies 2017, 10, 1479.

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