基于能量的磁滞模型参数解析计算

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Analytical calculation method for energy-based hysteresis model parameters

CHANG Yong1， BAO Guangqing²， CHEN Junquan³， YANG Qiaoling1 .College of Electrical EngineeringandInformationEnginering，LanzhouUniversityof Technology，Lanzhou73O5o，China; 2.School of Electronics and Information Engineering，Southwest Petroleum University，Chengdu 6105oo，China; 3.National Key Laboratoryof Electromagnetic Energy，Naval University of Engineering，Wuhan 43Oo33，China）

Abstract：The traditional hysteresis modeling method does not consider the energy changes of magnetic materials such as electrical steel sheets during the magnetization process，resulting in limited simulation accuracy of the hysteresis characteristics of ferromagnetic materials in actual complex magnetization environment conditions. An energy-based analytical calculation method was proposed for hysteresis model parameters.Bythe method the relationship was analyzed between the applied magnetic field and the reversible magnetic field corresponding to the pinning point，and then the distribution function W（h） and the pinning distribution density of different magnetic field intensity peaks were determined through the variation curve of coercive force with the peak value of the hysteresis loop.Based on the relationship between the pinning distribution density and the peak value of the applied magnetic field intensity，the pinning field strength and weight were calculated，and an energy hysteresis model was established.The discrete

收稿日期：2024-01-17

equation of the model was transformed into a continuous equation and vectorized，and an analytical calculation formula based on the energy hysteresis model was provided，and the model parameters were identified through analytical methods.Finally，the experimental data measured at different frequencies were compared with the predicted results of the analytical model，and error analysis was conducted.The results show that the analytical method has high computational accuracy，recognition speed，and robustness.

Keywords：electrical steel sheet；energy-based hysteresis model；pinning field distribution density；write criterion; reversible magnetic field intensity；analytical calculation

0引言

电工钢片作为电机设备能量转换的核心部件，对提升设备效率、稳定运行具有重要意义。（剩余12154字）