改进逆Play模型与非正弦激励下硅钢片磁滞特性模拟  

Simulation of Hysteresis Characteristics of Silicon Steel Sheet Under Non-sinusoidal Excitation Based on Improved Inverse Play Model

作　　者：杜莹雪 李琳[1] DU Yingxue;LI Lin(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,北京102206

出　　处：《高电压技术》2022年第11期4647-4655,共9页High Voltage Engineering

基　　金：国家自然科学基金(51677064)。

摘　　要：非正弦激励下含偏置小磁滞回环的硅钢片磁滞特性的准确快速模拟是变压器、电机等电力设备优化设计的重要环节。现有的逆Play模型在模拟硅钢片非正弦激励下的磁滞特性时需要大量不同磁密下的同心磁滞回线或一阶回转曲线实测值,并且在低磁密时模拟精度较低。针对该问题,提出了一种改进的逆Play模型。首先,基于数值方法生成的非均匀间隔一阶回转曲线数据调整Play磁滞算子阈值以及磁滞算子序列,提取逆Play模型形状函数参数;而后,利用三角形激励代替非正弦输入激励,基于新的输入激励以及形状函数,建立可准确模拟磁性材料非正弦激励下磁滞特性的改进逆Play模型。该模型仅需要硅钢片高、中、低3条磁滞回线实验数据,并且将该模型对硅钢片不同谐波下的磁滞特性模拟结果、损耗计算结果与实验测量数据进行对比,发现全局误差均控制在10%以内,从而验证了所提改进逆Play模型的准确性和实用性。Accurate and rapid simulation of the hysteresis characteristics of silicon steel sheets with small biased hysteresis loops under non-sinusoidal excitation is an important part of the optimal design of transformers and motors and other power devices.The existing inverse Play model requires a large number of measured values of concentric hysteresis loops or first-order reversal curves under different magnetic densities when simulating the hysteresis characteristics of silicon steel sheets under non-sinusoidal excitation,and the simulation accuracy is low at low magnetic densities.To solve this problem,we propose an improved inverse Play model.First,the non-uniform interval first-order reversal curves data generated by the numerical method are adopted to adjust the Play hysteresis operator threshold and the hysteresis operator sequence,and the shape function parameters of the inverse Play model are extracted.Then,the triangular excitation is used to replace the non-sinusoidal input excitation.Based on the new input excitation and shape function,an improved inverse Play model is established which can be adopted to accurately simulate the hysteresis characteristics of magnetic materials under non-sinusoidal excitation.The improved inverse Play model only needs the experimental data of high,medium,and low hysteresis loops of silicon steel sheets,and the hysteresis characteristics simulation results and loss calculation results of silicon steel sheets under different harmonics are compared with the experimental measurement data.It is found that the global errors are controlled within 10%,verifying the accuracy and practicability of the improved inverse Play model proposed in this article.

关 键 词：逆Play模型 非正弦激励 非均匀一阶回转曲线 形状函数 磁滞模拟 

分 类 号：TM275[一般工业技术—材料科学与工程]