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Volume 20 Issue 4
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2012  >  20(4): 295-300
WANG Xiao-lei. A Winding Eddy Current Loss Suppression Method for Power-type Axial Flux Permanent Magnet Machine with Coreless-stator[J]. Journal of Unmanned Undersea Systems, 2012, 20(4): 295-300. doi: 10.11993/j.issn.1673-1948.2012.04.012
Citation: WANG Xiao-lei. A Winding Eddy Current Loss Suppression Method for Power-type Axial Flux Permanent Magnet Machine with Coreless-stator[J]. Journal of Unmanned Undersea Systems, 2012, 20(4): 295-300. doi: 10.11993/j.issn.1673-1948.2012.04.012
shu

A Winding Eddy Current Loss Suppression Method for Power-type Axial Flux Permanent Magnet Machine with Coreless-stator

doi: 10.11993/j.issn.1673-1948.2012.04.012

  • Kunming Branch of the 705 Research Institute, China Shipbuilding Industry Corporation, Kunming 650118, China

  • Received Date: 2012-02-16
  • Rev Recd Date: 2012-03-29
  • Publish Date: 2012-08-20
    Abstract
  • The power-type axial flux permanent magnet(AFPM) brushless machine without stator cores is used for pro-pelling device of underwater vehicle. However, high eddy current loss is induced in its stator windings because the windings are directly exposed to the time-varying air gap magnetic field, which influences the performance of the ma-chine. In this paper, the eddy current loss calculating formulas for two winding conductor sizes are deduced, and a solu-tion to reduce the eddy current loss in coreless-stator windings is proposed by substituting thin inter-twist wire for the flat conductor with rectangular cross-section. A two-dimensional finite element model of equivalent linear motor is con-structed to analyze and calculate the eddy current loss. Eddy current test of a 11 kW AFPM machine with coreless-stator verifies the validity and feasibility of the proposed theory and method．

     

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    • References(10)
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