超导限流器对感应电动机负载的影响分析

Influence of Superconducting Current Limiter on Induction Motor

随着高温超导技术的发展,超导限流器成为研究热点之一。针对一种新型桥路高温超导限流器,分析了其对感应电动机启动及短路故障动态过程的影响,建立了含超导限流器的感应电动机的电磁暂态方程。基于Matlab的Simulink平台进行了仿真研究,并结合实验室超导限流器样机进行实验研究,仿真和试验结果表明超导故障限流器可以有效限制启动电流和故障电流,可以缓解大容量电动机启动困难及在短路故障时向短路点提供短路电流问题。

With the development of superconductor technology, superconducting current limiter （SCL） has been one of the interesting domains. This paper mainly researchs the start-up process of induction motor and dynamic transient process during the fault with a new bridge-type superconducting current limiter applied. Simulation is made by Matlab, and experiment is also done by the prototype SCL. Results show that superconducting current limiter can limit the start-up current and fault current of induction motor, and can decrease the difficulty in start-up of induction motor and feeding fault current to the fault point.