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Finite element analysis of magnetic field in high temperature bulk superconductor

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5 Author(s)
Yon-Do Chun ; Dept. of Electr. Eng., Hanyang Univ., Seoul, South Korea ; Youn-Hyun Kim ; Ju Lee ; Jung-Pyo Hong
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This paper presents the analysis of magnetic field in high temperature bulk superconductor (HTSC). The macroscopic field equations constructed on the basis of the critical state model and levitation forces are simulated between permanent magnets (PM) and HTSC using a 3D axisymmetric finite element method. The force computations are obtained by using the Lorentz force equation. An iteration method is used to determine the current distribution of HTSC, because the J-E relation in HTSC is extremely nonlinear. The numerical results show that the presented method is comparatively accurate by comparing the measured levitation forces and the simulation ones

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Applied Superconductivity, IEEE Transactions on  (Volume:11 ,  Issue: 1 )