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Micromagnetic simulation of high frequency saturation characteristics for nanocrystalline core

With the development of modern power system, the mathematical modeling problems of nanocrystalline core under high frequency (kHz) saturation condition is becoming more and more serious due to lacks of fundamental research. Therefore, the key scientific issue associated with high frequency saturation magnetic properties of nanocrystalline core is focused. In allusion to DC magnetic field, the micromagnetic simulation of high frequency saturation was carried out by the minimization of the Gibbs free energy. The magnetization curve and hysteresis loop were measured on the basis of the simulation which accords well with the experiments.