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arXiv · 2509.04115

A Dynamic Energy-Based Hysteresis Model for Pulsed-Operated Fast-Ramping Magnets

Dominik Moll·Laura A. M. D'Angelo·Herbert De Gersem·Fulvio Boattini·Luca Bottura·Marco Gast
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Abstract

Due to the strongly nonlinear behavior of ferromagnetic yokes, the numerical analysis of fast-ramping magnets is highly cumbersome and, therefore, in practice overly simplified by means of anhysteretic material descriptions and a posteriori loss formulae. This paper establishes the use of a dynamic ferromagnetic model combining a preconditioned energy-based hysteresis description and a thin-sheet eddy-current model in time-domain. The model was successfully employed in the analysis of a normal-conducting bending magnet in order to precisely calculate losses and fields.

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Dominik Moll, Laura A. M. D'Angelo, Herbert De Gersem, Fulvio Boattini, Luca Bottura, Marco Gast. 2025-09-04. A Dynamic Energy-Based Hysteresis Model for Pulsed-Operated Fast-Ramping Magnets. https://arxiv.org/abs/2509.04115

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