变温条件下解析Preisach磁滞模型误差修正和特征参数辨识方法  

Error correction and characteristic parameter identification of analytical Preisach hysteresis model under variable temperature

作　　者：陈彬[1,2] 曾庆麟[1,2] 王斐然 万妮娜 黄力 唐波[1,2] CHEN Bin;ZENG Qingin;WANG Feiran;WAN Nina;HUANG Li;TANG Bo(Line(China Three Gorges University),Yichang 443002,China;College of Electrical Engineering and New Energy,China Three Gorges University,Yichang 443002,China;Yichang Electric Company State Grid Hubei Electric Power Company,Yichang 443002,China)

机构地区：[1]湖北省输电线路工程技术研究中心(三峡大学),湖北宜昌443002 [2]三峡大学电气与新能源学院,湖北宜昌443002 [3]国网湖北省电力有限公司宜昌供电公司,湖北宜昌443002

出　　处：《电工电能新技术》2024年第6期60-69,共10页Advanced Technology of Electrical Engineering and Energy

基　　金：国家自然科学基金青年科学基金项目(52107006);湖北省自然科学基金项目(2021CFB149)。

摘　　要：温度升高会影响磁性材料的磁滞特性,从而改变电气设备的性能。目前解析Preisach模型无法对温度进行有效表征,导致损耗计算结果误差较大。为此,本文首先分析了基于Lorentzian函数的解析Preisach模型特征参数对磁滞回线形状参数的影响程度,如饱和磁通密度、矫顽力、剩磁等,研究了不同温度下模型参数和材料磁特性的变化。根据模型特征参数具有的磁滞回线形状相关性和温度相关性,引进温度系数来修正模型特征参数,构建变温条件下的解析Preisach模型,并给出了计及温度影响的模型参数辨识方法。最终实验测量纳米晶合金在变温条件下的极限磁滞回线,对多组实测值和修正后的解析Preisach模型计算值进行对比后,得出在饱和磁通密度、矫顽力和剩磁处修正模型结果的平均相对误差分别为0.15%、2.21%、5.76%,证明了该修正模型的准确性。Increasing of temperature will affect the hysteresis characteristics of magnetic materials,and then alte⁃ring the performance of electrical equipment.At present,the Preisach model cannot effectively characterize temper⁃ature,resulting in significant errors in loss calculation results.Therefore,the degree to which the characteristic pa⁃rameters of the analytical Preisach model based on the Lorentzian function will affect the shape parameters of the hysteresis loop,such as saturation magnetic density,coercive force,residual magnetism is firstly analyzed in this paper.The changes in model parameters and material magnetic properties at different temperatures are studied.Based on the shape correlation and temperature correlation of the hysteresis loop of the model characteristic parame⁃ters,a temperature coefficient is introduced to correct the model characteristic parameters,and an analytical Prei⁃sach model is constructed under variable temperature conditions.A method for identifying the model parameters considering the influence of temperature is also provided.The final experiment measures the ultimate hysteresis loop of nanocrystalline alloys under variable temperature conditions.After comparing multiple sets of measured values with the corrected analytical Preisach model calculation values,it can be found that the average relative errors of the corrected model results at saturation magnetic density,coercivity,and remanence are 0.15%,2.21%,and 5.76%,respectively,proving the accuracy of the corrected model.

关 键 词：解析Preisach磁滞模型 可逆磁化 磁滞回线 温度特性 参数辨识 

分 类 号：TM271[一般工业技术—材料科学与工程]