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A SIMPLE DYNAMIC PREISACH HYSTERESIS MODEL FOR FeSi MATERIALS

M. LU

Department of Electronic and Electrical Engineering, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom

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P. J. LEONARD

Department of Electronic and Electrical Engineering, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom

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P. MARKETOS

Wolfson Centre for Magnetics Technology, Cardiff University, P.O. Box 925, Cardiff CF24-0YF, United Kingdom

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T. MEYDAN

Wolfson Centre for Magnetics Technology, Cardiff University, P.O. Box 925, Cardiff CF24-0YF, United Kingdom

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, and

A. J. MOSES

Wolfson Centre for Magnetics Technology, Cardiff University, P.O. Box 925, Cardiff CF24-0YF, United Kingdom

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https://doi.org/10.1142/S0217979203018272Cited by:1 (Source: Crossref)

Abstract

Dynamic hysteresis property is a common phenomenon in FeSi materials under time-varied applied field. This paper presented a dynamic hysteresis model based on Preisach scheme. The rectangular-shaped elementary hysteresis operator with two states in classical Preisach model is replaced by a non-rectangular shaped one with multiple states. The output of each state is calculated by a cosine function. The proposed dynamic hysteresis model is experimently tested by comparing the simulated hysteresis loops to experimental ones. The model can be used to describe the dynamic hysteresis in FeSi material for magnetizing frequencies from quasi-static to several hundred Hertz.

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