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Superconducting magnetic energy storage with second-generation high temperature superconductors

Abstract : Magnetic energy is stored when a superconducting inductance is fed with current. This principle is called SMES (Superconducting Magnetic Energy Storage). This kind of device has a relatively low energy density but can have a high power density. This PhD work has been conducted in the frame of the BOSSE project with the objective to develop a SMES demonstrator in the MJ range. This SMES will be especially compact and will reach a specific energy of 20 kJ/kg of winding, which is 50 % over the current world record for a superconducting coil. This performance is made possible by the use of 2nd generation high critical temperature superconductors, so-called “REBCO” conductors.This work tackles the general problematic of SMES design and proposes elements of reflection and solutions for fast pre-design of a SMES winding. The design of the high specific energy SMES of the BOSSE project is presented in detail.Modular elements (pancakes of REBCO tapes) of the SMES have been manufactured and tested in self-field and under background magnetic field. During these tests, transitions from superconducting state to normal state have been detected. These early detections have prevented the pancakes to be damaged when transitions occurred, even at very high current density (980 A/mm2 in the bare conductor). The measurement method is presented, as well as the results of the tests.The BOSSE project has been funded by the DGA (French Defence Procurement Agency).
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https://tel.archives-ouvertes.fr/tel-02336977
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Submitted on : Tuesday, October 29, 2019 - 11:14:21 AM
Last modification on : Tuesday, October 6, 2020 - 4:24:20 PM
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  • HAL Id : tel-02336977, version 1

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Jérémie Ciceron. Superconducting magnetic energy storage with second-generation high temperature superconductors. Electric power. Université Grenoble Alpes, 2019. English. ⟨NNT : 2019GREAT012⟩. ⟨tel-02336977⟩

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