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Integral formulation for nonlinear magnetostatic and eddy currents analysis

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3 Author(s)
M. Gimignani ; Dipartimento di Sistemi Elettrici ed Automazione, Pisa Univ., Italy ; A. Musolino ; M. Raugi

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

Published in:

IEEE Transactions on Magnetics  (Volume:30 ,  Issue: 5 )