lim-fourierdecomposition-2017.pdf (1.23 MB)
Fourier decomposition of segmented magnets with radial magnetization in surface-mounted PM machines
journal contribution
posted on 2017-11-01, 00:00 authored by T L Tiang, D Ishak, Chee Peng LimChee Peng LimThis 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.
History
Journal
Journal of electrical engineeringVolume
68Issue
6Pagination
470 - 475Publisher
De Gruyter OpenLocation
Warsaw, PolandPublisher DOI
Link to full text
ISSN
1335-3632Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2017, FEI STUUsage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC