Study on Quench Protection Method With Regards to Normal Transition Behavior for HTS Coil

This paper presents the quench detection method with using normal transition behavior for HTS coil. If the HTS coil starts to propagate a normal zone by an initial quench, it will be recovered the superconducting state or runaway thermally. These behaviors were mainly determined by variety parameter...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2010-06, Vol.20 (3), p.2027-2030
Main Authors: Joo, J.-H, Sano, H, Kadota, T, Kim, S.-B, Murase, S, Kwon, Y.-K, Kim, H.-M, Jo, Y.-S
Format: Article
Language:English
Subjects:
Applied sciences
Behavior
Classification
Coiling
Coils (windings)
Cooling
COPPER OXIDE
Design. Technologies. Operation analysis. Testing
Educational technology
Electrical engineering. Electrical power engineering
Electromagnets
Electronics
Exact sciences and technology
Heating
High temperature superconductors
Integrated circuits
Materials
MATHEMATICAL ANALYSIS
Mathematical models
Protection
Quench behavior of HTS coils
quench detection
QUENCHING MECHANISMS
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
software detection circuits
Studies
Superconducting coils
Superconducting devices
SUPERCONDUCTIVITY
SUPERCONDUCTORS
Thermal quenching
Various equipment and components
VOLTAGE
WIRE
Wires
Wounds
YBCO superconductors
YTTRIUM OXIDE
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Summary:This paper presents the quench detection method with using normal transition behavior for HTS coil. If the HTS coil starts to propagate a normal zone by an initial quench, it will be recovered the superconducting state or runaway thermally. These behaviors were mainly determined by variety parameters like the magnitude of a disturbance, HTS coil size, the structure of winding wire and cooling condition. However, the first step of detection or protection for coils should be started from detecting the presence of a non-recovering normal zone. This paper classifies the initial quench behaviors of HTS wires or coils as a model of 3-type tendencies, and suggests suitable detection techniques for each tendency with using the end-to-end voltage of coil. In additional, this method is able to detect a quench without a decisive criterion used at other quench detection methods. In order to confirm the validity of the method, we used the HTS sample coil wound with YBCO tapes. This paper presents these results and the quench protection properties with fabricated detection method.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2010.2043238