• Transient stability of large h...

Treffer: Transient stability of large helical device conductor with and without aluminum stabilizer (2)-numerical results

Title:
Transient stability of large helical device conductor with and without aluminum stabilizer (2)-numerical results
Authors:
SHIRAI, Y, OHYA, M, IKUTA, R, SHIOTSU, M, IMAGAWA, S
Source:
The 2006 applied superconductivity conference, Seattle, WA, August 27-September 1, 2006. Part II of three partsIEEE transactions on applied superconductivity. 17(2):2458-2461
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2007.
Publication Year:
2007
Physical Description:
print, 12 ref 2
Original Material:
INIST-CNRS
Subject Terms:
Electronics, Electronique, Electrical engineering, Electrotechnique, Sciences exactes et technologie, Exact sciences and technology, Sciences appliquees, Applied sciences, Electronique, Electronics, Electronique des semiconducteurs. Microélectronique. Optoélectronique. Dispositifs à l'état solide, Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices, Circuits intégrés, Integrated circuits, Conception. Technologies. Analyse fonctionnement. Essais, Design. Technologies. Operation analysis. Testing, Electrotechnique. Electroenergetique, Electrical engineering. Electrical power engineering, Matériaux, Materials, Matériel électrique divers, Various equipment and components, Eléments de connexion. Câblage. Filerie, Electric connection. Cables. Wiring, Conducteur électrique, Electrical conductor, Conductor eléctrico, Contrainte thermique, Thermal stress, Tensión térmica, Contrainte électrique, Electric stress, Tensión eléctrica, Densité flux, Flux density, Densidad flujo, Echelle grande, Large scale, Escala grande, Effet Hall, Hall effect, Efecto Hall, Etude comparative, Comparative study, Estudio comparativo, Fiabilité, Reliability, Fiabilidad, Flux magnétique, Magnetic flux, Flujo magnético, Gestion température packaging électronique, Thermal management (packaging), Haute performance, High performance, Alto rendimiento, Matériau composite, Composite material, Material compuesto, Refroidissement, Cooling, Enfriamiento, Restauration(propriété), Recovery(properties), Restauración(propiedad), Régime transitoire, Unsteady state, Régimen transitorio, Simulation numérique, Numerical simulation, Simulación numérica, Simulation système, System simulation, Simulación sistema, Stabilité transitoire, Transient stability, Estabilidad transitoria, Superfluide, Superfluid, Superflúido, Supraconducteur composite, Composite superconductor, Supraconductor compuesto, Supraconducteur stabilisé, Stabilized superconductors, Système refroidissement, Cooling system, Sistema enfriamiento, Instabilité thermique de la polarisation négative, Negative bias temperature instability, Aluminum stabilized superconductor, hall effect, superfluid helium, transient stability
Document Type:
Konferenz Conference Paper
File Description:
text
Language:
English
Author Affiliations:
Department of Energy Science and Technology, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
ISSN:
1051-8223
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=19016773
Rights:
Copyright 2007 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Electrical engineering. Electroenergetics

Electronics
Accession Number:
edscal.19016773
Database:
PASCAL Archive

Weitere Informationen

Numerical simulations were carried out on the transient stability of large-scale composite superconductors against a thermal disturbance, that is, a LHD conductor, which consists of a NbTi/Cu Rutherford cable, a pure aluminum stabilizer, and a copper sheath around the composite. The simulations were also performed on an Al-less test conductor, which is a LHD conductor without the Al stabilizer and a half of the copper sheath. The recovery and propagation characteristics of an initiated normal zone were simulated to know the effect of the Al stabilizer on the transient stability of the LHD conductor cooled by Liq.He II. The normal zone propagation initiating current at a certain magnetic flux density for the LHD conductor was compared with that for the Al-less test conductor. Asymmetrical propagation of the normal zone appears even in the LHD based conductor without the Al stabilizer. The range of the transport current, which lead to the one-side propagation, is narrower than those for the LHD conductor. It is confirmed that the Al stabilizer in LHD conductor plays main role in the asymmetrical normal zone propagation. The high performance of the He II cooling in the transient state for the Al-less test conductor makes the normal zone initiating current up to the same level of that for the super-stabilized LHD conductor. It is confirmed that only a slight area of the thick aluminum works as a stabilizer at the transient state because of its low magnetic diffusion factor.