MacLean´s model of flux penetration: addressing stability

Author

Hoole, S.R.H. ; Rahunanthan, A. ; Sivapriya, T. ; Sutharsan, S.

Author_Institution

Dept. of Comput. Sci., Peradeniya Univ., Sri Lanka

Volume

39

Issue

3

fYear

2003

fDate

5/1/2003 12:00:00 AM

Firstpage

1187

Lastpage

1190

Abstract

The engineering design of eddy current actuated systems is expensive because of the rapid changes in field quantities and the resulting need to model very accurately. Many suggestions have been made to avoid computations in eddy current regions. The best known of these is the impedance boundary condition at steel interfaces. However, the impedance boundary condition does not work for nonlinear steel because the phasor analysis on which the impedance boundary condition is based is not applicable. MacLean´s model is best suited for analyzing in the nonlinear region. Reported problems with time stepping are overcome by studying various time-stepping methods and identifying a suitable numerical scheme. The identified method is shown to be convergent by using the von Neumann stability test.

Keywords

eddy currents; magnetic flux; numerical stability; steel; MacLean model; convergence; eddy current; magnetic flux penetration; nonlinear steel; numerical simulation; time stepping method; von Neumann stability; Boundary conditions; Eddy currents; Impedance; Magnetic analysis; Magnetic flux; Roentgenium; Saturation magnetization; Stability; Steel; Testing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2003.810187

Filename

1198430