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Use of a High-Temperature Superconducting Coil for Magnetic Energy Storage
Fagnard, Jean-François; Crate, David; Jamoye, Jean-François et al.
2006In Institute of Physics Conference Series, 43, p. 829-832
Peer reviewed
 

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Keywords :
SMES; Superconductivity; BSCCO tape; Energy storage
Abstract :
[en] A high temperature superconducting magnetic energy storage device (SMES) has been realised using a 350 m-long BSCCO tape wound as a ''pancake'' coil. The coil is mounted on a cryocooler allowing temperatures down to 17.2 K to be achieved. The temperature dependence of coil electrical resistance R(T) shows a superconducting transition at T = 102.5 K. Measurements of the V(I) characteristics were performed at several temperatures between 17.2 K and 101.5 K to obtain the temperature dependence of the critical current (using a 1 uV/cm criterion). Critical currents were found to exceed 100 A for T < 30 K. An electronic DC-DC converter was built in order to control the energy flow in and out of the superconducting coil. The converter consists of a MOS transistor bridge switching at a 80 kHz frequency and controlled with standard Pulse Width Modulation (PWM) techniques. The system was tested using a 30 V squared wave power supply as bridge input voltage. The coil current, the bridge input and output voltages were recorded simultaneously. Using a 10 A setpoint current in the superconducting coil, the whole system (coil + DC-DC converter) can provide a stable output voltage showing uninterruptible power supply (UPS) capabilities over 1 s.
Research center :
SUPRATECS - Services Universitaires pour la Recherche et les Applications Technologiques de Matériaux Électro-Céramiques, Composites, Supraconducteurs - ULiège
Disciplines :
Electrical & electronics engineering
Physics
Author, co-author :
Fagnard, Jean-François  
Crate, David
Jamoye, Jean-François
Laurent, Philippe
Mattivi, Brice
Cloots, Rudi ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale - Doyen de la Faculté des Sciences
Ausloos, Marcel ;  Université de Liège - ULiège > Département de physique > Physique statistique appliquée et des matériaux - S.U.P.R.A.S.
Genon, André ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Service général de l'Institut d'électricité Montefiore
Vanderbemden, Philippe  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Capteurs et systèmes de mesures électriques
Language :
English
Title :
Use of a High-Temperature Superconducting Coil for Magnetic Energy Storage
Publication date :
2006
Event name :
7th European Conference on Applied Superconductivity
Event place :
Vienna, Austria
Event date :
11-15 September 2005
Audience :
International
Journal title :
Institute of Physics Conference Series
ISSN :
0951-3248
Publisher :
Adam Hilger, Bristol, United Kingdom
Volume :
43
Pages :
829-832
Peer reviewed :
Peer reviewed
Name of the research project :
VESUVE - Valorisation de l'Etude des Supraconducteurs en Vue du stockage d’Energie
Funders :
DGTRE - Région wallonne. Direction générale des Technologies, de la Recherche et de l'Énergie [BE]
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
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