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Conductor and vessel losses in bath cooled SMES systems

Conference · · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)
OSTI ID:5746779
 [1]
  1. Wisconsin Univ., Madison, WI (United States). Applied Superconductivity Center

This paper presents several ac and dc loss sources for superconductive magnetic energy storage solenoids cooled in a bath of 1.8 K helium. The ac losses (eddy current losses) include conductor stabilizer and helium vessel as calculated for different charge or discharge sequences. The losses in helium vessel include vessels with and without an electric break. The dc loss for conductor joints consider the several NbTi/Cu strands twisted around a high purity aluminum stabilizer conductor. The resistance of the conductor joint depends on the electrical resistance of the bond between the strand and the aluminum and the distribution of joints staggered in position on aluminum stabilizer.

OSTI ID:
5746779
Report Number(s):
CONF-900944--
Journal Information:
IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Vol. 27:2; ISSN IEMGA; ISSN 0018-9464
Country of Publication:
United States
Language:
English