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Communication Dans Un Congrès Année : 2023

Fast integral modeling approach for the characterization of a superconductor stabilizer in DC electric grid

Sara Fawaz
Hocine Menana

Résumé

Objective-The objective of this paper is to develop a fast integral modeling approach for the design and characterization of a superconductor stabilizer (SS) that is embedded in DC electric grid. The SS consists of a large scale non-inductive high temperature superconducting (HTS) coils. The modeling approach is combined with a far tape approximation strategy, which enables the estimation of losses and the determination of current density distribution in the coil by modeling a progressively reduced set of consecutive tapes instead of the entire coil. Findings-The model has been tested where the calculated AC losses show a good agreement with those obtained with Norris ellipse formula and measurements. This highlights the importance of considering the elliptical section of the superconductor in the tape. Additionally, some noteworthy phenomena were observed, which are related to the current distribution in the tapes. Originality-Integral approaches are used due to their advantages of limiting the discretization to the active parts of the system. However, these approaches can still encounter difficulties when modeling coils composed of a large number of turns. Consequently, a far-tape approximation strategy is employed to reduce the size of matrices and computation time.
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Dates et versions

hal-04165304 , version 1 (18-07-2023)

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  • HAL Id : hal-04165304 , version 1

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Sara Fawaz, Hocine Menana, Bruno Douine. Fast integral modeling approach for the characterization of a superconductor stabilizer in DC electric grid. Symposium on Advanced Technologies in Electrical Systems - SATES23, Mar 2023, Arras, France. ⟨hal-04165304⟩
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