故障限流器对系统暂态稳定性影响的仿真分析

根据故障限流器（FCL）按其旁路阻抗性质可分为电抗型、电阻型和阻抗型三种类型. 针对单机无穷大系统，推导出了在输电线路发生短路故障时，投入故障限流器后的总转移阻抗和发电机的输出功率表达式. 并仿真研究了含故障限流器的单机无穷大系统的功角特性. 结果表明，故障限流器可以减小系统在暂态时域内的发电机转子的加速面积，提高系统的暂态稳定性.

Simulation Analysis of the Influence of Fault CurrentLimiter on Power System Transient Stability

According to the characteristics of fault current limiter（FCL），the FCL can be divided into three types:inductor type，resistor type and R-L type. The total transfer impedance and the generator power-output expressions are deduced after introducing FCL when short circuit faults occur on a transmission line in a single machine to infinite-busbar system，and simulation is made on the power-angle characteristics of a single unit infinite system with a fault current limiter. The results show that the fault current limiter can reduce the acceleration area of generator rotor when the system is in transient time domain as to improve the transient stability of the system.