Armature reaction field of tubular linear surface-inset permanent magnet machines

Author

Amara, Yacine ; Barakat, Georges ; Reghem, Pascal

Author_Institution

Groupe de Rech. en Electrotech. et Autom. du Havre (GREAH), Univ. of Le Havre, Le Havre, France

fYear

2010

fDate

6-8 Sept. 2010

Firstpage

1

Lastpage

6

Abstract

This paper presents an exact 2D analytical model for predicting the armature reaction magnetic field in idealized structures of permanent magnet tubular linear machines with surface-inset mounted magnets. The armature reaction magnetic field distributions is analytically derived and compared to finite elements analyses. The analytical solution allows the prediction of the machine inductance and reluctance force in closed forms, and facilitates the evaluation of any possible partial irreversible demagnetization of the magnets. It can also be used to estimate resistance limited eddy current losses in armature windings and permanent magnets. The developed analytical model can be advantageously used for the analysis and design of a class of linear tubular machines.

Keywords

finite element analysis; linear machines; machine windings; permanent magnet machines; armature reaction magnetic field; armature winding; eddy current losses; machine inductance; permanent magnet tubular linear machine; reluctance force; surface inset mounted magnet; Analytical models; Armature; Finite element methods; Magnetic fields; Permanent magnets; Stator windings; Analytical modeling; armature reaction field; electromagnetic analysis; magnetic fields; permanent magnet linear machines; permanent magnets; tubular linear machines;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2010 XIX International Conference on

Conference_Location

Rome

Print_ISBN

978-1-4244-4174-7

Electronic_ISBN

978-1-4244-4175-4

Type

conf

DOI

10.1109/ICELMACH.2010.5608018

Filename

5608018