Analysis on the Pitching Moment in Permanent-Magnet Linear Synchronous Motor for Linear Motion Stage Systems

This paper presents the characteristic analysis and experiment of pitching moment in a high-precision permanent-magnet linear synchronous motor. The pitching moment is analyzed according to suggested strategy; therefore, analytical solutions for magnetic fields generated by PMs are derived based on...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2016-07, Vol.52 (7), p.1-4
Main Authors: Kyung-Hun Shin, Seung-Han Lee, Han-Wook Cho, Park, Cheol-Hoon, Jang-Young Choi, Gyungho Khim
Format: Article
Language:English
Subjects:
Analytical method
attraction force
Boundaries
Boundary conditions
Force
Iron
Magnetic fields
Magnetic flux
Magnetism
Mathematical analysis
Mathematical model
Permanent magnets
pitching moment
Pitching moments
PMLSM
Polar coordinates
Strategy
Stress
Synchronous motors
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Summary:This paper presents the characteristic analysis and experiment of pitching moment in a high-precision permanent-magnet linear synchronous motor. The pitching moment is analyzed according to suggested strategy; therefore, analytical solutions for magnetic fields generated by PMs are derived based on the analytical magnetic field calculation in terms of a 2-D polar coordinate system. The analytical solution of each subdomain (PM, air gap, slot, slot opening, and end region) is derived, and the field solution is obtained by applying the boundary and interface conditions between the subdomains. The magnetic force is determined based on the magnetic field analysis results. Finally, the predictions are compared with the measured data to confirm the validity of the analysis methods presented in this paper.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2016.2523999