An energy‐based vector hysteresis model for ferromagnetic materials
ISSN: 0332-1649
Article publication date: 1 January 2006
Abstract
Purpose
Proposes a new quasi‐static vector hysteresis model based on an energy approach, where dissipation is represented by a friction‐like force.
Design/methodology/approach
The start point is the local energy balance of the ferromagnetic material. Dissipation is represented by a friction‐like force, which derives from a non‐differentiable convex functional. Several elementary hysteresis cells can be combined, in order to increase the number of free parameters in the model, and therefore improve the accuracy.
Findings
A friction‐like force is a good way to represent magnetic dissipation at the macroscopic level. The proposed method is easy to implement and non‐differentiability amounts in this case to a simple “if” statement.
Research limitations/implications
The next steps are the extension to dynamic hysteresis and the in‐depth analysis of the identification process, which is only sketched in this paper.
Practical implications
This vector model, which is based on a reasonable phenomenological description of local magnetic dissipation, enables the numerical analysis of rotational hysteresis losses on a sound theoretical basis.
Originality/value
It proposes a simple, general purpose macroscopic model of hysteresis that is intrinsically a vector one, and not the vectorization of a scalar model.
Keywords
Citation
Henrotte, F., Nicolet, A. and Hameyer, K. (2006), "An energy‐based vector hysteresis model for ferromagnetic materials", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 25 No. 1, pp. 71-80. https://doi.org/10.1108/03321640610634344
Publisher
:Emerald Group Publishing Limited
Copyright © 2006, Emerald Group Publishing Limited