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Browse Journals & Magazines > Magnetics, IEEE Transactions ...> Volume:44 Issue:8 Help

Using Modular Poles for Shape Optimization of Flux Density Distribution in Permanent-Magnet Machines

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3 Author(s)
Isfahani, A.H. ; Sch. of Electr. & Comput. Eng., Tehran Univ., Tehran ; Vaez-Zadeh, S. ; Azizur Rahman, M.

A modular configuration for a type of permanent-magnet pole is proposed for use in permanent-magnet (PM) machines. The pole consists of three or more permanent-magnet pieces. The main objective of this configuration is to shape the air-gap flux density distribution produced by the pole. An optimization procedure based on an analytical model is then used to determine the optimal pole specifications. A finite-element method is finally carried out to evaluate the proposed configuration. Extensive investigations on a linear permanent-magnet motor demonstrate that the proposed configuration reduces flux density as well as back electromotive force harmonics. This pole configuration also results in more efficient use of PM materials.

Published in:
Magnetics, IEEE Transactions on  (Volume:44 ,  Issue: 8 )

Date of Publication: Aug. 2008

Page(s):
2009 - 2015
ISSN :
0018-9464
INSPEC Accession Number:
10185815
Digital Object Identifier :
10.1109/TMAG.2008.922781
Product Type:
Journals & Magazines
Date of Current Version :
03 September 2008
Issue Date :
Aug. 2008
Sponsored by :
IEEE Magnetics Society

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