Magnetic field analytical solution and electromagnetic force calculation of coreless stator axial-flux permanent-magnet machines

This paper presents an analytical solution of the magnetic field in a coreless stator axial-flux permanent magnet (AFPM) machine, including axial, radial and circumferential components of the air-gap flux density. Based on the three-dimensional (3-D) analytical field solution, the paper also present...

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Bibliographic Details
Published inInternational journal of applied electromagnetics and mechanics Vol. 54; no. 1; pp. 93 - 105
Main Authors Cao, Yongjuan, Tao, Shaoqin, Cai, Jun, Yu, Li, Jia, Hongyun, Zhang, Tao
Format Journal Article
LanguageEnglish
Published Amsterdam IOS Press BV 01.01.2017
Subjects
Air gaps
Axial stress
Design optimization
Finite element method
Flux density
Magnetic fields
Magnetism
Mathematical analysis
Permanent magnets
Stators
Three dimensional analysis
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Summary:This paper presents an analytical solution of the magnetic field in a coreless stator axial-flux permanent magnet (AFPM) machine, including axial, radial and circumferential components of the air-gap flux density. Based on the three-dimensional (3-D) analytical field solution, the paper also presents the analytical analysis of axial electromagnetic force of the rotor discs using Maxwell stress tensor method. The effect of some sizes on the axial electromagnetic force is analyzed. For the verification, 3-D finite element method (FEM) is accomplished to analyze the magnetic field and electromagnetic force. The solution and calculation are useful in design and optimization of coreless stator AFPM machines.
ISSN:1383-5416
1875-8800
DOI:10.3233/JAE-160112