中文摘要：

为了解决闭环高温超导磁体的磁场稳定性问题，需要对超导磁体进行电流补偿。针对高温超导磁体励磁和磁场衰减，在对磁场感应式磁通泵原理分析的基础上，提出了高温超导磁通泵的双回路电流模型，建立了高温超导磁通泵模型方程，并对超导泵桥上的磁通运动过程进行了定量分析，获得了磁通泵运行参量对超导磁体负载电流的影响关系。

英文摘要：

It is necessary to compensate current decay for high temperature superconducting magnet operated in persistent current mode, due to the existence of joint resistance between wire pieces. Flux pump is a promising option to energize the mag- net and supplement the decayed current when stable magnetic field is required. Based on the principle analysis of high tempera- ture superconducting flux pump, a dual - loop circuit model was proposed to simulate the load current pumping process when a moving magnetic induction penetrated the superconducting bridge of a flux pump. The load current model was theoretically estab- lished to demonstrate the effects of operating parameters such as load inductance, applied magnetic induction and its reciprocating frequencies. Load current simulation results were presented in this paper.