Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/10619
Title: Enhanced nonlinear algorithm for the transient analysis of magnetic field and electric circuit coupled problems
Authors: Fu, WN 
Ho, SL 
Keywords: Finite element method
Magnetic field
Nonlinear
Numerical error
Transient
Issue Date: 2009
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on magnetics, 2009, v. 45, no. 2, 4782119, p. 701-706 How to cite?
Journal: IEEE transactions on magnetics 
Abstract: The time stepping finite element method based on the backward Euler's method has been widely used to simulate transient electromagnetic fields. Because of the numerical error of nonlinear iterations, the solutions of the derivative quantities may have very big noisy spikes. We present a modified formulation that reduces significantly the numerical error of the derivative quantities in transient finite element analysis of magnetic field computation. We also present an example that simulates the operation of an induction motor and demonstrates that the new method can successfully remove the spikes in the calculated waveforms of back electromotive force and eddy-current loss.
URI: http://hdl.handle.net/10397/10619
ISSN: 0018-9464
EISSN: 1941-0069
DOI: 10.1109/TMAG.2008.2008271
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