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Contribution à la modélisation et à la caractérisation des supraconducteurs HTC pour leur intégration dans les machines électriques

Abstract : The research work presented in this thesis constitutes a contribution to the modeling and experimental characterization of high temperature superconductors (HTS) for a better integration in electrical machines. The work was carried out on two complementary axes: - Development of modeling approaches allowing the calculation of electromagnetic quantities in HTS under self-field conditions or with the proximity of other sources, in particular in the presence of ferromagnetic parts with linear and non-linear magnetic permeability. Particular interest is given to integral methods which have several advantages for the modeling of such systems. The results obtained were validated by comparisons with measurements and numerical calculations by the finite element method. - Experimental characterization of such materials in order to determine the critical current and AC losses. The study goes from the sample (superconducting tape) to the system (electrical machine), highlighting the difficulties encountered in such a characterization. A prototype of a synchronous machine with a superconducting armature was also built and tested. The first measurement results obtained are presented and validated by modeling.
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https://hal.univ-lorraine.fr/tel-03367038
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Submitted on : Wednesday, October 6, 2021 - 8:54:04 AM
Last modification on : Friday, October 29, 2021 - 8:07:04 PM

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  • HAL Id : tel-03367038, version 1

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Yazid Statra. Contribution à la modélisation et à la caractérisation des supraconducteurs HTC pour leur intégration dans les machines électriques. Energie électrique. Université de Lorraine, 2021. Français. ⟨NNT : 2021LORR0112⟩. ⟨tel-03367038⟩

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