NDLI: Comparative electrical design of radial- and axial-flux permanent magnet synchronous machines under space limitation

Content Provider	IEEE Xplore Digital Library
Author	Nakahara, A. Deguchi, K. Kikuchi, S. Enomoto, Y.
Copyright Year	2014
Description	Author affiliation: Hitachi Res. Lab., Hitachi, Ltd., Hitachi, Japan (Nakahara, A.; Deguchi, K.; Kikuchi, S.; Enomoto, Y.)
Abstract	Comparative electrical designs of radial- and axial-flux permanent magnet machines (AFPMs) under space limitation are described in this paper. The target machines are conventional radial-flux machines and axial-flux machines with a single stator between two rotors. An analytical equation for designing axial-flux machines is derived considering given dimensions. The torque densities are calculated under dimensional limitations. From calculated results, the torque density of axial-flux machines depends on axial lengths, though that of radial-flux machines is independent of axial lengths. The back yoke thickness and the stator slot height of axial-flux machines are included in the axial length. Axial-flux machines have the possibility of having higher torque density than radial-flux machines if the windings are filled in the slot at a rate proportional to the increase of the slot space. However, the optimal axial length of axial-flux machines depends on the electrical loading because of the magnetic saturation of the stator teeth.
Sponsorship	IEEE
Starting Page	422
Ending Page	428
File Size	730364
Page Count	7
File Format	PDF
ISBN	9781479943890
DOI	10.1109/ICELMACH.2014.6960215
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-02
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic flux Stator cores Solid modeling Torque Magnetic field analysis Axial flux Electrical design Atmospheric modeling Loading Permanent magnet machine Finite element analysis
Content Type	Text
Resource Type	Article

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