高精度的材料模型对于旋转电机的铁损分析以及整个电机系统的损耗与效率计算至关重要。本项目试图通过对磁畴运动的原位观测解释电工钢磁滞/弛豫损耗的微观物理本质，同时结合复杂激励条件下磁滞回线和回复线精确测量，以及非线性瞬变涡流场的有限元计算，形成更为完备精确的基于唯像模型的多维电工钢磁滞/弛豫损耗和涡流损耗的计算方法；进而实现计及电枢反应的复杂电源供电条件下实际工况旋转电机铁损的分布计算和精确测量。通过本项目研究，将构建更为物理自洽、系统完整、高效准确的旋转电机铁损计算、分析和试验仿真的理论体系，为更高效率、更高功率密度、更高集成度和更高可靠性的旋转电机及系统设计优化提供支撑。

The iron loss is the research focus of scholars around the world, and its precise measurement and calculation means a lot for the performance analysis, optimization and evaluation of rotary machines. This project will make effort to establish a complete and multi-parameters calculation method of hysteresis/relaxation losses and eddy current losses in electrical steels based on phenomenological models as following: micro physical explanations of hysteresis/relaxation losses in electrical steels obtained by observations of the motion of magnetic domains, precise measurements of hysteresis curves and recoil curves under complex excitations, and finite element analysis of non-linear transient eddy current fields. Based on above, the calculation and measurement method of iron losses in rotary machines under various power supply conditions in real operation will be presented by taking armature reactions into account. Thus, a compact, physical compatible, complete and more precise theory of calculation, simulation and testing of iron losses in rotary machines is established, which lends support for industrial application of new, highly efficient, intelligent and advanced electrical machines and driving systems.