Integral formulation for nonlinear magnetostatic and eddy currents analysis

Author

Gimignani, M. ; Musolino, A. ; Raugi, M.

Author_Institution

Dipartimento di Sistemi Elettrici ed Automazione, Pisa Univ., Italy

Volume

30

Issue

5

fYear

1994

fDate

9/1/1994 12:00:00 AM

Firstpage

3024

Lastpage

3027

Abstract

In this paper a method based on an integral formulation for nonlinear three dimensional eddy currents and magnetostatic analysis is presented. The method is based on the subdivision of the conductive regions in elementary volume elements in which a uniform current density J and magnetization M is assumed. Integrating Ohm´s law inside the conductive regions, a system of nonlinear equations that can be integrated combining a modified Newton-Raphson and a single-step time-marching method is obtained. Calculated results for TEAM problem 13 (magnetostatic) and problem 10 (eddy currents) are reported

Keywords

current density; eddy currents; integral equations; magnetostatics; numerical analysis; Ohm´s law; TEAM problem 10; TEAM problem 13; conductive regions; eddy currents analysis; elementary volume elements; integral formulation; magnetization; modified Newton-Raphson method; nonlinear equations; nonlinear magnetostatic analysis; single-step time-marching method; three dimensional eddy currents; uniform current density; Current density; Eddy currents; Electric potential; Integral equations; Magnetic analysis; Magnetic circuits; Magnetic flux; Magnetization; Magnetostatics; Nonlinear equations;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.312574

Filename

312574