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Article Dans Une Revue IEEE Transactions on Magnetics Année : 2020

An Integro-Differential Time-Domain Scheme for Electromagnetic Field Modeling in HTS Materials

Résumé

In this article, we developed a 3-D integro-differential model in the time domain for the electromagnetic field computation in high-temperature superconductive (HTS) composite materials which are characterized by a nonlinear anisotropic electrical conductivity and multiscale dimensions. The model is formulated in terms of the electric vector potential and discretized by using the finite-difference method coupled to a collocation method for the integral part. Only the active parts of the system are discretized. A relaxation method is applied to improve the convergence of the solution and to reduce the computation time. In the aim validation, a numerical example is considered where the numerical evaluation of ac losses in a Bi-Sr-Ca-Cu-O type HTS tape is compared to an analytical calculation using measured parameters.
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Dates et versions

hal-02885287 , version 1 (30-06-2020)

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H. Menana, Mohamad Farhat, Melika Hinaje, Bruno Douine. An Integro-Differential Time-Domain Scheme for Electromagnetic Field Modeling in HTS Materials. IEEE Transactions on Magnetics, 2020, 56 (3), pp.1-4. ⟨10.1109/TMAG.2019.2953688⟩. ⟨hal-02885287⟩
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