Numerical Simulation of Levitation Characteristics of A Cylindrical Permanent Magnet and A High-temperature Superconductor Based on the 3D Finite-Element Method
1.Key Laboratory of Applied Superconductivity Chinese Academy of Sciences Beijing 100190 China 2.Institute of Electrical Engineering Chinese Academy of Sciences Beijing 100190 China 3.University of Chinese Academy of Sciences Beijing 100190 China 4.Shijiazhuang Tiedao University Shijiazhuang 050043 China
Abstract：In this paper,we measured and analyzed the levitation characteristics of a cylindrical permanent magnet (PM) and a high-temperature superconductor (HTS) in zero-field cooling and field cooling conditions,respectively.A 3D finite-element model based on H-formulation is provided to simulate the dynamic levitation characteristic acting on the HTS with the PM moving.The E-J power law model is used to analyze the superconducting state.The nonlinear equations are solved by the over-relaxation iterative method.Compared with other finite-element models,the main advantages of the proposed model are with fewer variables,faster computing speed,and easier convergence.We proved the validity of the model by comparing the simulation with the experimental results.
余志强,张国民,邱清泉,胡磊. 基于3D有限元法的圆柱形永磁体与高温超导体悬浮特性的数字仿真[J]. 电工技术学报, 2015, 30(13): 32-38.
Yu Zhiqiang ,Zhang Guomin ,Qiu Qingquan ,Hu Lei. Numerical Simulation of Levitation Characteristics of A Cylindrical Permanent Magnet and A High-temperature Superconductor Based on the 3D Finite-Element Method. Transactions of China Electrotechnical Society, 2015, 30(13): 32-38.
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2015, Vol. 30 
