Electromagnetic Characteristic of a Novel Linear Flux Switching Machine With Three-Dimensional Magnetic Circuit

The novel linear flux switching permanent magnet machine with a three-dimensional magnetic circuit is proposed in this paper, which is suitable for aerospace, missile launch, and other fields, benefiting from high thrust force and low cost. First, the basic structure and working principle of the mac...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2019-03, Vol.29 (2), p.1-5
Main Authors: Wei, Yao, Zhao, Mei, Yang, Hongyong, Deng, Guanlong, Han, Fujun, Xu, Mingming, Zou, Jibin
Format: Article
Language:English
Subjects:
Air gaps
Back electromotive force
Circuits
Couplings
Electromagnetic characteristic
Electromagnetic properties
Electromotive forces
equivalent magnetic circuit
Finite element method
Flux density
flux switching
High thrust
linear machine
Magnetic circuits
Magnetic cores
Magnetic properties
Mathematical analysis
Permanent magnets
Stator windings
Superconducting magnets
Switching
Thrust
Variable reluctance
Windings
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Summary:The novel linear flux switching permanent magnet machine with a three-dimensional magnetic circuit is proposed in this paper, which is suitable for aerospace, missile launch, and other fields, benefiting from high thrust force and low cost. First, the basic structure and working principle of the machine are introduced. Second, the equivalent magnetic circuit model considering the variable reluctance is established and the equations are put forward for magnetic analysis. Third, the simplified finite element model is performed to calculate the field distribution, the air-gap flux density, the flux linkage of winding, and the back electromotive force. Finally, a prototype is constructed and experiments show a good agreement with analysis.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2018.2890606