Design and preliminary tests of a twin coil HTS SMES for pulse power operation

Badel, Arnaud; Tixador, Pascal; Berger, Kévin; Deleglise, M.

doi:10.1088/0953-2048/24/5/055010

Cited by 26 publications

(7 citation statements)

References 18 publications

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“…The overall efficiency of each launch is however not increased, as the powering of the launcher is ensured ultimately by the capacitors. This possibility has been investigated at reduced scale with an HTS conduction-cooled SMES [7]. An efficiency of more than 90% for a 32 kJ SMES to capacitor energy transfer was obtained, with a reloading time of 350 ms [8].…”

Section: Smes As Buffer Energy Storagementioning

confidence: 99%

Optimized use of superconducting magnetic energy storage for electromagnetic rail launcher powering

Badel

Tixador

Arniet³

2011

Supercond. Sci. Technol.

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Electromagnetic rail launchers (EMRLs) require very high currents, from hundreds of kA to several MA. They are usually powered by capacitors. The use of superconducting magnetic energy storage (SMES) in the supply chain of an EMRL is investigated, as an energy buffer and as direct powering source. Simulations of direct powering are conducted to quantify the benefits of this method in terms of required primary energy. In order to enhance further the benefits of SMES powering, a novel integration concept is proposed, the superconducting self-supplied electromagnetic launcher (S 3 EL). In the S 3 EL, the SMES is used as a power supply for the EMRL but its coil serves also as an additional source of magnetic flux density, in order to increase the thrust (or reduce the required current for a given thrust). Optimization principles for this new concept are presented. Simulations based on the characteristics of an existing launcher demonstrate that the required current could be reduced by a factor of seven. Realizing such devices with HTS cables should be possible in the near future, especially if the S 3 EL concept is used in combination with the XRAM principle, allowing current multiplication.

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Section: Smes As Buffer Energy Storagementioning

confidence: 99%

Optimized use of superconducting magnetic energy storage for electromagnetic rail launcher powering

Badel

Tixador

Arniet³

2011

Supercond. Sci. Technol.

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“…High performance REBa 2 Cu 3 O 7−δ (REBCO, RE: rare earth elements) high-temperature superconducting (HTS)-coated conductors have been successfully prepared for the applications of electric power, such as superconducting transmission cables, superconducting motors, superconducting generators, superconducting current limiters, and superconducting magnetic energy storage [1,2,3,4,5,6,7]. At present, there are several main process methods to prepare REBCO films, such as pulsed laser deposition (PLD) [8,9], metal organic deposition (MOD) [10,11], sputtering [12], co-evaporation [13,14], and metal organic chemical vapor deposition (MOCVD) [15,16,17,18].…”

Section: Introductionmentioning

confidence: 99%

Multi-Aperture Shower Design for the Improvement of the Transverse Uniformity of MOCVD-Derived GdYBCO Films

et al. 2017

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A multi-aperture shower design is reported to improve the transverse uniformity of GdYBCO superconducting films on the template of sputtered-LaMnO 3 /epitaxial-MgO/IBAD-MgO/solution deposition planarization (SDP)-Y 2 O 3 -buffered Hastelloy tapes. The GdYBCO films were prepared by the metal organic chemical vapor deposition (MOCVD) process. The transverse uniformities of structure, morphology, thickness, and performance were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), step profiler, and the standard four-probe method using the criteria of 1 µV/cm, respectively. Through adopting the multi-aperture shower instead of the slit shower, measurement by step profiler revealed that the thickness difference between the middle and the edges based on the slit shower design was well eliminated. Characterization by SEM showed that a GdYBCO film with a smooth surface was successfully prepared. Moreover, the transport critical current density (J c ) of its middle and edge positions at 77 K and self-field were found to be over 5 MA/cm 2 through adopting the micro-bridge four-probe method.

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“…Many studies on high-temperature superconducting (HTS) coils for superconducting magnetic energy storage (SMES) applications have been actively carried out [1][2][3]. SMES is a technology that stores magnetic energy by direct current flow in a superconducting coil.…”

Section: Introductionmentioning

confidence: 99%

HTS coil with enhanced thermal stability in over-current operation for fast response magnet power application

Kim

Lee

2015

Supercond. Sci. Technol.

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This paper examines the effect of improved winding geometry on high-temperature superconducting (HTS) coils for use in superconducting power applications. One of the most important functions in such a superconducting magnetic energy storage system is to chargedischarge the superconducting coils as fast as possible to secure sufficient power demand. The HTS coils are vulnerable to the thermal instability caused by cyclic and/or unexpected chargedischarge variation. Therefore, it is necessary to enhance the safety of the HTS coils under fast response operation at the request of varying loads. In this study, improved thermal stability in over-current operation is demonstrated by implementing the proposed insulation scheme. The performance of the HTS coil with the proposed winding geometry was experimentally evaluated in comparison with a conventional insulation (CI) coil. Cryo-stability characteristics of the proposed coil are verified with a circuit analysis under a charge-discharge operation scenario. The results of this study show the usefulness of the proposed winding coil as a replacement for CI coils, which have drawbacks related to thermal recovery rate in over-current operation.

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Design and preliminary tests of a twin coil HTS SMES for pulse power operation

Cited by 26 publications

References 18 publications

Optimized use of superconducting magnetic energy storage for electromagnetic rail launcher powering

Optimized use of superconducting magnetic energy storage for electromagnetic rail launcher powering

Multi-Aperture Shower Design for the Improvement of the Transverse Uniformity of MOCVD-Derived GdYBCO Films

HTS coil with enhanced thermal stability in over-current operation for fast response magnet power application

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