Journal
IEEE TRANSACTIONS ON MAGNETICS
Volume 58, Issue 1, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2021.3128765
Keywords
Magnetic hysteresis; Magnetic domains; Mathematical models; Perpendicular magnetic anisotropy; Magnetization; Magnetic flux; Steel; Dynamic modeling; energy loss; ferromagnetic materials; grain-oriented electrical steels (GOES); magnetic hysteresis
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A novel approach is developed to model the hysteresis phenomenon of grain-oriented electrical steels. The model is able to accurately replicate experimentally obtained dynamic hysteresis loops and evaluate the energy loss in the steels. There is a close agreement between the predicted energy loss and measured results.
A novel approach is adopted to model the hysteresis phenomenon of grain-oriented electrical steels (GOESs), by incorporating a variation of the domain patterns associated with ferromagnetic materials during magnetization and demagnetization. The ensuing model treats the anisotropic and isotropic components separately, together with the coupling effect of the excitation field. Its ability to replicate experimentally obtained dynamic hysteresis loops (DHLs) for Epstein size laminations of GO 3% SiFe electrical steels, for different magnetizing frequencies and peak flux densities, and facilitate the straightforward evaluation of the energy loss in GOESs is demonstrated for the case of controlled sinusoidal magnetic induction. Close agreement is found to exist between the predicted energy loss and corresponding bulk measurements, with the maximum difference being less than 2%.
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