Measurement and Numerical Evaluation of AC Losses in a ReBCO Roebel Cable at 4.5 K

EuCARD-2 aims to research ReBCO superconducting magnets for future accelerator applications. The properties of ReBCO conductors are very different from low-temperature superconductors. To investigate dynamic field quality, stability, and normal zone propagation, an electrical network model for coate...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2016-04, Vol.26 (3), p.1-7
Main Authors: van Nugteren, J., van Nugteren, B., Gao, P., Bottura, L., Dhalle, M., Goldacker, W., Kario, A., ten Kate, H., Kirby, G., Krooshoop, E., de Rijk, G., Rossi, L., Senatore, C., Wessel, S., Yagotintsev, K., Yang, Y.
Format: Article
Language:English
Subjects:
Conductors
High-temperature superconductors
HTS
Magnetic fields
Magnetic hysteresis
Magnetization
Mathematical model
Measurement
Modeling
ReBCO
Roebel cable
Superconducting cables
Superconducting magnets
Superconductors
Temperature measurement
Validation
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Summary:EuCARD-2 aims to research ReBCO superconducting magnets for future accelerator applications. The properties of ReBCO conductors are very different from low-temperature superconductors. To investigate dynamic field quality, stability, and normal zone propagation, an electrical network model for coated conductor cables was developed. To validate the model, two identical samples were prepared at CERN, after which measurements were taken at the University of Twente and Southampton University. The model predicts that for a Roebel cable, in a changing magnetic field applied in the perpendicular direction, hysteresis loss is much larger than coupling loss. In the case of a changing magnetic field applied parallel to the cable, coupling loss is dominant. In the first case, the experiment is in good agreement with the model. In the second case, the data can only be compared qualitatively because the calibration for the inductive measurement is not available.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2016.2525919