Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/9852
Title: Precise magnetic field modeling techniques of rotary machines using transient finite-element method
Authors: Li, HL
Ho, SL 
Fu, WN 
Keywords: Electric machine
Finite-element method
Magnetic field
Matching boundary condition
Rotary machine
Issue Date: 2012
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on magnetics, 2012, v. 48, no. 11, 6332568, p. 4192-4195 How to cite?
Journal: IEEE transactions on magnetics 
Abstract: A general and precise method to model rotary machines based on transient magnetic field computation using finite-element method (FEM) is presented. The merits of the proposed method are that the nonlinear iteration on the rotor position can be avoided. Formulas to predict the rotor position and speed of the machine are deduced based on Taylor's expansion. A curvilinear element is used on the two sides of the sliding surface to reduce the numerical noises arising from mesh rotation. The proposed methods for dealing with matching boundary conditions and periodic boundary conditions are very general, accurate and flexible. Typical numerical experiment shows that the numerical error of the local magnetic potentials on the motion sliding surface is only one twentieth of that of traditional interpolation method.
URI: http://hdl.handle.net/10397/9852
ISSN: 0018-9464 (print)
1941-0069 (online)
DOI: 10.1109/TMAG.2012.2201254
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