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Communication Dans Un Congrès Année : 2018

2D Numerical Modeling of a Coil Coupled with an Electrical Circuit used for PFM of Bulk HTS

Résumé

Bulk High Temperature Superconductors (HTS) can be magnetized and act as permanent magnet 10 times stronger than conventional ones as NdFeB. The design of the inductor is a key point to perform the desired magnetization of the bulk HTS. In this paper, a coil coupled with an electrical circuit and a bulk HTS are simulated together using an A-V formulation in Comsol. This setup is the one used for the Pulsed Field Magnetization (PFM) of bulk HTS. The current waveforms during the PFM process for different behaviors of the superconductor are compared. The obtained maximal value of current show a discrepency around 15%. The problems that arise using A-V formulation in Comsol are exhibited through the abnormal calculated current density inside the bulk HTS. The final aim of the work started in this paper is to figure out a fast and accurate modeling method for such a system, which would then allow us to estimate the trapped magnetic field into the bulk at the end of the PFM process.
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Dates et versions

hal-01759213 , version 1 (05-04-2018)

Identifiants

  • HAL Id : hal-01759213 , version 1

Citer

Jakub Kapek, Kévin Berger, Jean Lévêque. 2D Numerical Modeling of a Coil Coupled with an Electrical Circuit used for PFM of Bulk HTS. Symposium de Génie Electrique (SGE 2018), Université de Lorraine [UL], Jul 2018, Nancy, France. p. 36, id. 188917, SO-24-PM : 1. ⟨hal-01759213⟩
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