DocumentCode :
8717
Title :
Frequency Domain Decomposition of 3-D Eddy Current Problems in Steel Laminations of Induction Machines
Author :
Handgruber, Paul ; Stermecki, Andrej ; Biro, O. ; Ofner, Georg
Author_Institution :
Christian Doppler Lab. for Multiphysical Simulation, Anal. & Design of Electr. Machines, Graz Univ. of Technol., Graz, Austria
Volume :
50
Issue :
2
fYear :
2014
fDate :
Feb. 2014
Firstpage :
901
Lastpage :
904
Abstract :
A novel method to reduce the computational burden of 3-D eddy current problems in steel laminations of induction machines is presented. Instead of a nonlinear time-stepping analysis, a set of linear time-harmonic simulations for known frequencies is used. The linear model considers the machines´ saturation by a reluctivity obtained from a nonlinear 2-D field solution. Solving the time-harmonic problems in parallel results in a fast method. Comparisons with a time-stepping approach confirm the validity of the proposed method. Different eddy current formulations are investigated to accelerate the solution of the time-harmonic problems.
Keywords :
asynchronous machines; eddy currents; frequency-domain analysis; 3D eddy current problems; frequency domain decomposition; induction machines steel laminations; linear time-harmonic simulations; nonlinear 2D field solution; nonlinear time-stepping analysis; time-harmonic problems; Computational modeling; Eddy currents; Harmonic analysis; Rotors; Solid modeling; Stators; Transient analysis; AC machines; eddy currents; electric machines; finite element analysis; magnetic losses;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2013.2279379
Filename :
6749135
Link To Document :
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