节能型故障限流器的应用研究

Application research of an energy saving fault current limiter

故障限流器是一种有效限制短路故障产生的过大短路电流的继电保护装置。本文简要介绍了故障限流器的分类和存在的问题,提出一种基于快速开关技术的节能型故障限流器。文中对这种故障限流器的关键技术进行阐述,并用Matlab/Simulink仿真分析了不同短路故障下的限流效果。最后对比传统故障限流器和节能型故障限流器的经济性能,进行成本分析,用计算实例对节能型故障限流器的节能效果予以论证。

Fault Current Limiter is an overload protection device which can effectively limit the short circuit current. In this paper, the classification and existing problems of the fault current limiter are briefly introduced, and an energy-saving fault current limiter based on fast switching technology is proposed. The key technology of this kind of fault current limiter is expounded in this paper, and the Matlab/Simulink simulation is used to analyze the current limiting effect under different short circuit faults. Finally, This paper compares the economic performance of traditional fault current limiter and energy saving fault current limiter, carries out cost analysis, and demonstrates the energy saving effect of energy saving fault current limiter by using calculation examples.