Bi-2223复合导体直流磁场下自场损耗热稳定性分析

Thermal stability analysis of Bi-2223 composite conductor with self-field loss subject to DC magnetic field

对于一种Bi-2223的复合导体,利用ANSYS软件,我们分析了在直流磁场下励磁过程中,自场损耗对复合导体热稳定性的影响;然后假定Bi-2223超导带内不同的损耗值,通过计算,确定了达到超导带分流温度的最小损耗值。

For one kind of Bi 2223 composite conductor, we analyzed the influence of self field loss subject to DC mag netic field on the thermal stability of this composite conductor during charging period with ANSYS software. Assuming different losses in Bi 2223 tapes, we found the minimum loss which caused superconducting tape to reach its current sharing temperature.