WIT Press

Optimum Simulation Of B-H Curves In FEM Analysis Of Magnetic Fields

Price

Free (open access)

Paper DOI

10.2495/ES960321

Volume

11

Pages

10

Published

1996

Size

913 kb

Author(s)

E. Santini

Abstract

The paper introduces a new algorithm for the numerical simulation of magnetisation curves, suitable for Newton iterative process in FEM analysis of non-linear magnetic fields, both for dc magnetisation curves and for hysteresis loops. The algorithm, from the complete data sheet of the magnetic material, determines the number and the location of the points which set is minimum and ensures a global error lower that a control quantity. 1 Introduction In FEM analysis of static electromagnetic fields where non-linear materials are present, it is necessary to determine numerically the magnetic field H from the knowledge of the magnetic flux density B as well as dH(B)/dB. The same problem holds for dynamic simulations, where the hysteresis of the material has to be taken into a

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