期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 544, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2021.168655
关键词
Preisach model; Jiles-Atherton model; Neural network; Magnetization process
资金
- National Natural Science Foundation of China [52130710, 51777055, 51977122, 92066206]
- Funds for Creative Research Groups of Hebei Province [E2020202142]
A hybrid model of dynamic magnetic hysteresis combining the Jiles-Atherton and Preisach models based on backpropagation neural networks is proposed in this paper. This model accurately reproduces dynamic hysteresis loops and core losses under different excitations, validated by experimental measurements.
Ferromagnetic materials are widely used for magnetic cores in electromagnetic devices such as inductors, transformers, generators, and motors. In a magnetic core, as the magnetic field varies with time, core loss is generated due to magnetic hysteresis and eddy currents. For performance analysis and design optimization of electromagnetic devices, it is essential to model the dynamic magnetization processes and associated core losses accurately. This paper proposes a hybrid model of dynamic magnetic hysteresis, which incorporates the effects of both hysteresis and eddy currents, by combining the dynamic Jiles-Atherton and Preisach models based on backpropagation neural networks. This model can accurately reproduce the dynamic hysteresis loops and core losses under different excitations. The numerical simulations are verified by experimental measurements.
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