Study on the coil for quick response superconducting generator

摘要

Low AC loss and high current density NbTi/Cu/CuNi double stage cabling superconductor for quick response superconducting generator (SCG) has been developed. Its characteristics were measured by short sample and several coil models. The critical current of 14 kA at 6 T and the AC loss of 10 kw/m/sup 3/ were achieved, and coil models were excited under high current change rate operation without the quench. The developed superconductor will be able to be applied to a 70 MW class quick response SCG.