Analytical Modeling of Open-Circuit Air-Gap Field Distributions in Multisegment and Multilayer Interior Permanent-Magnet Machines

We present a simple lumped magnetic circuit model for interior permanent-magnet (IPM) machines with multisegment and multilayer permanent magnets. We derived analytically the open-circuit air-gap field distribution, average air-gap flux density, and leakage fluxes. To verify the developed models and...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2009-08, Vol.45 (8), p.3121-3130
Main Authors: Li Zhu, Jiang, S.Z., Zhu, Z.Q., Chan, C.C.
Format: Article
Language:English
Subjects:
Air gaps
Air-gap flux density
Analytical models
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Finite element method
Finite element methods
Flux
Flux density
Harmonic distortion
interior permanent magnet
leakage flux
Magnetic analysis
Magnetic circuits
Magnetic multilayers
Magnetism
Materials science
Mathematical analysis
Mathematical models
multilayer
Multilayers
multisegment
Nonhomogeneous media
Other topics in materials science
Permanent magnets
Physics
Prototypes
Total harmonic distortion
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Description
Summary:We present a simple lumped magnetic circuit model for interior permanent-magnet (IPM) machines with multisegment and multilayer permanent magnets. We derived analytically the open-circuit air-gap field distribution, average air-gap flux density, and leakage fluxes. To verify the developed models and analytical method, we adopted finite-element analysis (FEA). We show that for prototype machines, the errors between the FEA and analytically predicted results are
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2009.2019841