摘要
铁磁材料励磁特性描述的准确性与磁化模型密切相关。在重新推导以磁场强度H为输入量的经典J-A磁滞模型基础上,对模型中局部磁滞回线的非物理解进行改进,并基于磁化机理提出损耗系数k的修正方程,形成了改进的J-A磁滞模型。通过示波器法测量铁心的磁滞回线并与其对应的改进J-A磁滞模型的理论值进行对比,验证了模型的有效性和准确性。
Though the accurate description of the ferromagnetic excitation characteristics is closely related with magnetization model.this paper modifies the unphysical solution in minor loop and equation of loss factor k based on modified J-A model with H as input which is derived from classical J-A static hysteresis model.The Hysteresis loop of iron core is measured through oscilloscope method,and the validation and accuracy of modified J-A model is verified by comparison between the hysteresis loop calculated and the experiments.
出处
《电测与仪表》
北大核心
2013年第6期4-7,共4页
Electrical Measurement & Instrumentation
