高温超导线圈的交直流冲击安全性仿真

Simulation of the Safety Against Ac and Dc Current Shock Pulses in a High Temperature Superconductive Coil

超导磁体的稳定性和线圈产生的热量在线圈中积累有着很重要的关系,因此超导线圈在大电流冲击下的热稳定性问题的研究就有着典型意义.本文建立一个载流高温超导线圈的温度分布随时间的推移数值模型,并采用差分法模拟线圈在大电流冲击下的发热和传热情况.研究发现超导线圈的散热能力和热容是决定其能否工作在很高温度下的决定性因素.

In high temperature conducting（HTS）coil, the accumulation of heat in coil is key to the stability. So the stability of a HTS coil under pulse currents is an important problem. The model comes from a typical and superconductive coil, according to the cooling term of the coil. The result showed that spreading the thermal energy and thermal capacity were key to the coil working under very high temperature.