Case study on quench evolution and passive protection of high Tc superconducting pancake coil

摘要

2-D numerical simulation was used to study thequench evolutions of high Tc superconducting pancake coils madeof BSCCO/Ag tape. The self-protection inductance, under which apancake coil of persistent mode is able to be self-protective, wasobtained for protection design. In a persistent LTS/HTS hybridmagnet with passive protection, quench evolution was studied forthe HTS pancake coil with different shunt resistors, and thefeasibility of passive protection for the HTS coil was alsodiscussed. The results show that passive protection is also feasiblefor the HTS pancake coil if subdivisions and shunt resistors arereasonably designed.