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Fourier decomposition of segmented magnets with radial magnetization in surface-mounted PM machines

Tiang, Tow Leong, Ishak, Dahaman and Lim, Chee Peng 2017, Fourier decomposition of segmented magnets with radial magnetization in surface-mounted PM machines, Journal of electrical engineering, vol. 68, no. 6, pp. 470-475, doi: 10.1515/jee-2017-0082.

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Title Fourier decomposition of segmented magnets with radial magnetization in surface-mounted PM machines
Author(s) Tiang, Tow Leong
Ishak, Dahaman
Lim, Chee PengORCID iD for Lim, Chee Peng orcid.org/0000-0003-4191-9083
Journal name Journal of electrical engineering
Volume number 68
Issue number 6
Start page 470
End page 475
Total pages 6
Publisher De Gruyter Open
Place of publication Warsaw, Poland
Publication date 2017-11-01
ISSN 1335-3632
Keyword(s) Fourier decomposition
magnet segmentation
permanent magnet synchronous machine
radial magnetization
Summary This paper presents a generic field model of radial magnetization (RM) pattern produced by multiple segmented magnets per rotor pole in surface-mounted permanent magnet (PM) machines. The magnetization vectors from either odd- or even-number of magnet blocks per pole are described. Fourier decomposition is first employed to derive the field model, and later integrated with the exact 2D analytical subdomain method to predict the magnetic field distributions and other motor global quantities. For the assessment purpose, a 12-slot/8-pole surface-mounted PM motor with two segmented magnets per pole is investigated by using the proposed field model. The electromagnetic performances of the PM machines are intensively predicted by the proposed magnet field model which include the magnetic field distributions, airgap flux density, phase back-EMF, cogging torque, and output torque during either open-circuit or on-load operating conditions. The analytical results are evaluated and compared with those obtained from both 2D and 3D finite element analyses (FEA) where an excellent agreement has been achieved.
Language eng
DOI 10.1515/jee-2017-0082
Indigenous content off
Field of Research 0906 Electrical and Electronic Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2017, FEI STU
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30111175

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.