Abstract Fe-based amorphous magnetic materials are attracting more and more attentions in the application of low and medium frequency transformers due to their favorable properties of low core loss and high saturation magnetic flux density. Accurate modelling of their static and dynamic characteristics is required for analysis and design optimization of low and medium frequency transformers. In particular, for numerical analysis using the vectorial magnetic potential, an inverse magnetic hysteresis model is needed to predict the magnetic field strength from the magnetic flux density. When the excitation varies with time, the magnetic hysteresis model must be able to predict the dynamic hysteresis characteristics. This paper presents a generalized inverse Preisach dynamic hysteresis model for dynamic characterization of Fe-based magnetic materials. This model incorporates the reversible magnetization and magnetization dependent hysteresis, as well as all core loss components, including the hysteresis, eddy current, and excess losses. The proposed model can predict accurately the magnetic field strength from the magnetic flux density and hence accurate core losses. The predicted results are verified by experimental measurements.

中文翻译：

---

Fe基非晶磁性材料的广义逆Preisach动态磁滞模型

摘要 铁基非晶磁性材料以其低铁损、高饱和磁通密度等优点在中低频变压器应用中越来越受到关注。中低频变压器的分析和设计优化需要对其静态和动态特性进行精确建模。特别是，对于使用矢量磁势的数值分析，需要一个逆磁滞模型来根据磁通密度预测磁场强度。当励磁随时间变化时，磁滞模型必须能够预测动态磁滞特性。本文提出了一种用于铁基磁性材料动态表征的广义逆 Preisach 动态磁滞模型。该模型包含可逆磁化和磁化相关磁滞，以及所有磁芯损耗分量，包括磁滞、涡流和超额损耗。所提出的模型可以根据磁通密度准确预测磁场强度，从而准确预测铁芯损耗。通过实验测量验证了预测结果。