二维混合矢量磁滞模型数值模拟的改进方法

混合矢量磁滞模型结合了基础模型的优点,可以模拟磁性材料的矢量磁滞特性。但由于模拟误差的存在,致使模拟结果与实验结果有所偏差。本文针对这一问题,对基于Preisach模型和S-W模型的二维混合矢量磁滞模型的数值模拟方法进行了改进,并分析了改进方法的数值模拟步骤。使用改进方法分别对交变激磁和旋转激磁情况下软磁复合材料的磁滞特性进行了模拟研究,并将模拟结果与实验测量结果进行了对比分析,结果表明改进后的模拟方法可以很好地模拟不同频率下软磁复合材料的磁滞特性。

The Improved Numerical Implementation Method of Two-Dimensional Hybrid Vector Hysteresis Model

The hybrid vector hysteresis model combines the advantages of the basic model to simulate the vector hysteresis characteristics of magnetic materials. However, due to the existence of simulation error, the simulation results and experimental results have some deviation. Aiming at this problem, this paper improves the numerical simulation method of two-dimensional mixed vector hysteresis model based on Preisach model and S-W model, and analyzes the numerical simulation steps of the improved method. The improved method is used to simulate the hysteresis characteristics of soft magnetic composites under alternating magnetic field and rotational magnetic field, and the results are compared with the experimental ones. The results show that the improved method can well simulate the hysteresis characteristics of soft magnetic composites under different frequencies.