Curvature-related eddy-current losses in laminated axial flux machine cores

Ahfock A. and Hewitt A.J. (2005). Curvature-related eddy-current losses in laminated axial flux machine cores. In: , , (1350-1358). . doi:10.1049/ip-epa:20045280


Author Ahfock A.
Hewitt A.J.
Title of paper Curvature-related eddy-current losses in laminated axial flux machine cores
Journal name IEE Proceedings: Electric Power Applications   Check publisher's open access policy
Publication Year 2005
Sub-type Fully published paper
DOI 10.1049/ip-epa:20045280
ISSN 1350-2352
Volume 152
Issue 5
Start page 1350
End page 1358
Total pages 9
Abstract/Summary An axiperiodic quasistatic model to evaluate the magnetic flux density distribution and power loss due to curvature-related radial flux in the laminated core of axial flux machines is presented. It is shown that the relatively low effective permeability in the radial direction and the shielding effect of induced eddy currents result in negligible radial flux density compared to the peak flux densities in the axial and circumferential directions. This justifies the assumption of zero radial flux, which simplifies electromagnetic modelling of axial flux machine cores. The model predicts that power loss due to curvature-related radial flux is insignificant compared to normal eddy-current loss if the core permeability, core conductivity and number of poles are sufficiently high. A laboratory technique is proposed for the practical detection of power loss due to curvature-related radial flux.
Subjects 2208 Electrical and Electronic Engineering
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Conference Paper
Collection: Scopus Import
 
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Created: Tue, 26 Jul 2016, 04:01:36 EST by System User