脉冲激励下铁基纳米晶磁芯的Jiles-Atherton模型参数辨识及应用  

Parameter identification and application of Jiles-Atherton model forFe-based nanocrystalline cores under pulsed excitation

作　　者：江进波 李毅 曹宇 蔡宛辰 姚延东 徐林 Jiang Jinbo;Li Yi;Cao Yu;Cai Wanchen;Yao Yandong;Xu Lin(College of Engineering and New Energy,China Three Gorges University,Yichang 443002,China;Hubei Provincial Engineering Research Center for Power Transmission Line,Yichang 443002,China;State Grid Chaohu Power Supply Company,Chaohu 238000.China;State Grid Dandong Power Supply Company,Dandong 118000,China)

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443002 [2]湖北省输电线路工程技术研究中心(三峡大学),湖北宜昌443002 [3]国网巢湖供电公司,安徽巢湖238000 [4]国网丹东供电公司,辽宁丹东118000

出　　处：《强激光与粒子束》2024年第6期129-137,共9页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(51707105);强脉冲辐射环境模拟与效应全国重点实验室基金项目(SKLIPR2008)。

摘　　要：通过理论分析对经典J-A方程进行了修正,增强了其在脉冲条件下的适应性,利用脉冲磁化特性实验平台,测量了铁基纳米晶磁芯在不同磁化速率下的磁滞回线,采用遗传算法进行脉冲激励下的J-A参数辨识,将算法模拟的磁滞回线与实验测试的磁滞回线数据集进行拟合,验证了修正后的J-A方程的有效性,最后将遗传算法寻优得到的J-A参数应用于脉冲变压器场路耦合模型的磁芯J-A参数定义中,分析脉冲变压器初级电压为1.5 kV时的仿真与实验误差,得到脉冲变压器输出波形的脉冲前沿误差为3.33%,幅值误差为2.91%,相比于J-A参数的常规非线性求解方法精度更高,能更好地应用于脉冲功率系统中含磁性元件的建模仿真。The classical Jiles-Atherton(J-A)equation has been modified through theoretical analysis,whichenhances its adaptability under pulsed conditions.Hysteresis loops of Fe-based nanocrystalline cores are measured atdifferent magnetization rates by using an experimental platform for pulsed magnetization properties.The geneticalgorithm(GA)is used for J-A parameter identification under pulsed excitation,and the validity of the modified J-Aequations is verified by fitting the algorithmically simulated hysteresis loops to the experimentally tested hysteresisloop dataset.Finally,the J-A parameter obtained by GA optimization are applied to the definition of magnetic coreparameters in the field-circuit coupling model of the pulse transformer,the simulation and experimental errors whenthe primary voltage of the pulse transformer is 1.5 kV are analyzed.The results show that the pulse front error of theoutput waveform is 3.33%and the amplitude error is 2.91%,which is more accurate than the conventional nonlinearsolving method of J-A parameter.This indicates that the optimized J-A parameter can be better applied to themodeling and simulation of magnetic-containing components in pulsed power systems.

关 键 词：铁基纳米晶 脉冲磁化特性 Jiles-Atherton模型 遗传算法 脉冲变压器 

分 类 号：TN78[电子电信—电路与系统]