A multi-parameter model of heat treatment process for soft magnetic materials on performance of HSERs

You, Jiaxin; Hao, Yu; Liang, Huimin; Xie, Yuan; Ding, Ding

doi:10.1016/j.cja.2022.03.002

Cited by 4 publications

(1 citation statement)

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“…The Preisach model can be classified into continuous models and discrete models. The former needs to be realized by identifying all parameters in the distribution function which identification process is complex and computationally expensive [ 4 , 5 , 6 , 7 , 8 ], the latter requires the identification of the Everett function matrix by first order reversal curves (FORCs) [ 9 ]. However, in the actual measurement process, due to the asymmetric excitation, the DC bias component is brought, and the measurement result has a large deviation.…”

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confidence: 99%

Harmonic and DC Bias Hysteresis Characteristics Simulation Based on an Improved Preisach Model

Zhang

Tian

et al. 2023

Materials

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Transformers, reactors and other electrical equipment often work under harmonics and DC-bias working conditions. It is necessary to quickly and accurately simulate the hysteresis characteristics of soft magnetic materials under various excitation conditions in order to achieve accurate calculations of core loss and the optimal design of electrical equipment. Based on Preisach hysteresis model, a parameter identification method for asymmetric hysteresis loop simulation is designed and applied to the simulation of hysteresis characteristics under bias conditions of oriented silicon steel sheets. In this paper, the limiting hysteresis loops of oriented silicon steel sheets are obtained through experiments under different working conditions. The first-order reversal curves(FORCs) with asymmetric characteristics is generated numerically, and then the Everett function is established under different DC bias conditions. The hysteresis characteristics of the oriented silicon steel sheets under harmonics and DC bias are simulated by improving FORCs identification method of the Preisach model. By comparing the results of simulation and experiment, the effectiveness of the proposed method is verified, so as to provide an important reference for material production and application.

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