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

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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.

Key words： High-temperature superconductor levitation characteristics H-formulation 3D finite-element model power law model

Received: 08 December 2014 Published: 14 September 2015

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TM153

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	Yu Zhiqiang
	Zhang Guomin
	Qiu Qingquan
	Hu Lei

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Yu Zhiqiang,Zhang Guomin,Qiu Qingquan等. Numerical Simulation of Levitation Characteristics of A Cylindrical Permanent Magnet and A High-temperature Superconductor Based on the 3D Finite-Element Method[J]. Transactions of China Electrotechnical Society, 2015, 30(13): 32-38.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I13/32

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