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Basic properties of ferromagnetic vector hysteresis play models and their validation by finite element method

Xiao Xiao (Institute of Electrical Machines and Chair in Electromagnetic Energy Conversion, RWTH Aachen University, Aachen, Germany)
Andreas Christian Thul (Institute of Electrical Machines and Chair in Electromagnetic Energy Conversion, RWTH Aachen University, Aachen, Germany)
Lars Eric Müller (Institute of Electrical Machines and Chair in Electromagnetic Energy Conversion, RWTH Aachen University, Aachen, Germany)
Kay Hameyer (Department of IEM, RWTH Aachen University, Aachen, Germany)

Abstract

Purpose

Magnetic hysteresis holds significant technical and physical importance in the design of electromagnetic components. Despite extensive research in this area, modeling magnetic hysteresis remains a challenging task that is yet to be fully resolved. The purpose of this paper is to study vector hysteresis play models for anisotropic ferromagnetic materials in a physical, thermodynamical approach.

Design/methodology/approach

In this work, hysteresis play models are implemented to interpret magnetic properties, drawing upon classical rate-independent plasticity principles derived from continuum mechanics theory. By conducting qualitative and quantitative verification and validation, various aspects of ferromagnetic vector hysteresis were thoroughly examined. By directly incorporating the hysteresis play models into the primal formulations using fixed point method, the proposed model is validated with measurements in a finite element (FE) environments.

Findings

The proposed vector hysteresis play model is verified with fundamental properties of hysteresis effects. Numerical analysis is performed in an FE environment. Measured data from a rotational single sheet tester (RSST) are validated to the simulated results.

Originality/value

The results of this work demonstrates that the essential properties of the hysteresis effects by electrical steel sheets can be represented by the proposed vector hysteresis play models. By incorporation of hysteresis play models into the weak formulations of the magnetostatic problem in the h-based magnetic scalar potential form, magnetic properties of electrical steel sheets can be locally analyzed and represented.

Keywords

Acknowledgements

The authors thank Dr. Klaus Kuhnen and Fabian Müller of Robert Bosch GmbH for sharing their experiences in hysteresis modeling. The German Research Foundation (DFG) supported this work within the research project number 373150943 “Vector hysteresis modeling of ferromagnetic materials”.

Citation

Xiao, X., Thul, A.C., Müller, L.E. and Hameyer, K. (2024), "Basic properties of ferromagnetic vector hysteresis play models and their validation by finite element method", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. ahead-of-print No. ahead-of-print. https://doi.org/10.1108/COMPEL-11-2023-0568

Publisher

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Emerald Publishing Limited

Copyright © 2024, Emerald Publishing Limited

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