Affiliations: [a] Technische Universität Darmstadt, Department of
Electrical Engineering and Information Technology, Computational
Electromagnetics Laboratory (TEMF), Schlossgartenstr. 8, D-64289 Darmstadt,
Germany. Tel.: +49 6151 162361; Fax: +49 6151 164611; E-mail:
{yuan,clemens,weiland}@temf.de
Correspondence:
[*]
Corrsponding author
Abstract: The paper presents a numerical method for transient
magneto-quasistatic field analysis including hysteretic ferromagnetic
materials. The procedure is based on a Finite Integration Implicit Time Domain
(FI^2TD) formulation using the classical Preisach model. An
hybrid scheme using the magnetic polarization update scheme for hysteretic
materials and the successive approximation scheme for non-hysteretic nonlinear
materials is given. Relaxation parameters are introduced to avoid convergence
problems of the iterative scheme around the critical zones of the hysteresis
curve. In numerical experiments with a test configuration the simulated
hysteresis loops are compared with those achieved by measurements and the
corresponding hysteretic losses are presented.
Keywords: hysteresis, transient magnetic field simulation, convergence, hysteretic losses, finite integration technique
