V-I curves of 100-kVA class high-Tc resonator coil

Oleg A. Shevchenko, Jan Jaap Rabbers, Arno Godeke, Bennie ten Haken, Herman H.J. ten Kate

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Abstract

Potentially, coils made with BSCCO-2223/Ag tape and operating in liquid nitrogen at 50-60 Hz are interesting for power related applications. The electrical characteristics of such a coil depend on the radial magnetic field in the windings. One way to suppress the radial field is by placing small iron pieces around coil edges. V-I curves of the 100 kVA coil are calculated and measured for two cases: coil edges without and with iron pieces. The coil is a solenoid with inner and outer diameters and a height of 470, 474 and 614 mm respectively. A numerical model adapted to the coil geometry is used to calculate the conductor losses. The loss voltage is also evaluated by measuring the coil temperature. The total loss of the coil is measured electromagnetically. Calculated and measured losses are in agreement. Finally, the loss V-I curves of the coil are simulated in the frequency range of 0 to 400 Hz. The results are applied to the design of a 1 MVA resonator coil
Original languageEnglish
Pages (from-to)2204-2207
Number of pages4
JournalIEEE transactions on applied superconductivity
Volume11
Issue number1
DOIs
Publication statusPublished - 2001
Event2000 Applied Superconductivity Conference, ASC 2000 - Viriginia Beach, United States
Duration: 17 Sep 200022 Sep 2000

Keywords

  • High temperature superconductors
  • AC losses
  • Voltage- current curves
  • BSCCO-2223 tapes and coils

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