A Temperature and Stress Dependent Hysteresis Model with Experiment Validation
DuanNana1, Xu Weijie2, Li Yongjian3, Wang Shuhong1, Zhu Jianguo4
1. School of ElectricalEngineering Xi’an Jiaotong University Xi’an 710049 China;; 2. State Grid Shaanxi Electric Power Company Construction Branch Xi’an 710065 China;; 3. Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability Hebei University of Technology Tianjin 300130 China; 4. Faculty of Engineering and Information Technologies The University of Sydney Sydney NSW 2006 Australia
Abstract The design and performance analysis of the electrical equipment usually involve the coupling of electrical, magnetic, thermal, mechanical and other physical fields. With the development of numerical calculation technology of electromagnetic field and the improvement of computer performance, the electromagnetic field numerical simulation software has been widely used to analyze the coupling problem of electromagnetic field, thermal field and mechanical field. The magnetic properties of magnetic material under work conditions will be influenced by some non-magnetic factors, such as temperature and stress. However, these characteristics are difficult to be simulated by the traditional hysteresis models. In this paper, based on the microscopic magnetizationmechanisms of magnetic materials, a hysteresis elemental operator, which contains two easy axes and two hard axes, has been presented. Besides, with the help of the energy minimum principle, the octagonal law which can determine the orientation of the magnetization has been introduced. By taking into account the differences between the laboratory conditions and the practical engineering manufacturing and operation, the temperature-depended saturation magnetization, temperature-depended anisotropy, and stress-depended distribution function are introduced to the hysteresis elemental operator. With the employment of the Gaussian-Gaussian distribution function and the interaction field, a temperature and stress dependent hysteresis model is proposed to simulate the magnetic properties under different temperature and stress conditions. Finally, by comparing the simulation results with the experimental measurement results, the effectiveness and viability of this proposed hysteresis model have been confirmed.
DuanNana,Xu Weijie,Li Yongjian等. A Temperature and Stress Dependent Hysteresis Model with Experiment Validation[J]. Transactions of China Electrotechnical Society, 2019, 34(13): 2686-2692.
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2019, Vol. 34 
