在研究磁屏蔽感应型超导故障限流器原理的基础上,提出了一种新型磁屏蔽感应型高温超导故障限流器,它主要由一次超导绕组、二次超导圆柱形屏蔽筒、铁芯和液氮冷冻箱组成,其工作原理是利用超导绕组和超导筒从超导态转变到正常态时其阻抗的快速上升而限流,对应用于三相系统的新型磁屏蔽感应型超导故障限流器进行了仿真研究,它能显著地减少暂态及稳态的故障电流,有效地提高电力系统的稳定性.
Base on studying of the working principle of magnetic shielding type high temperature superconducting fault current limiter, a novel magnetic shielding type high temperature superconductiong fault current limiter is proposed for three-phase power system. The model of an inductive current-limiting device consists of a primary superconducting coil , a high-Tc superconducting cylinder ring as the secondary winding , an iron core and a sub-cooled nitrogen cryostat with a cryocooler, the principle of the device's operation is based on a rapid rise of the device's impedance at the transition of the winding and the ring from the superconducting to the normal state ,The simulation results demonstrate that the device can reduce both the transient and the steady-state fault current significantly, The new device has shown to be quite effective for stabilization of the power system.