摘要
为使电网日益增长的短路电流得到有效限制,提出一种基于快速开关的新型故障限流器(fast switch fault current limiter,FSFCL)。分析介绍了FSFCL的拓扑结构、原理及关键技术,深入研究了FSFCL在电网中的限流原理,利用MATLAB/Simulink仿真软件验证了其限流效果,并采用PSASP仿真验证了FSFCL接入电网后的暂态稳定性。仿真结果表明:FSFCL对短路故障产生的大电流和电压降落问题限制效果显著,且FSFCL安装后系统的暂态稳定性有所提升。
A new type of fast switch fault current limiter(FSFCL)based on fast switching is proposed which can effectively limit the increasing short-circuit current of the power grid.The topology,current limiting principle and key technologies of FSFCL are introduced.The current limiting principle of FSFCL in the power grid is studied in depth,and its current limiting effect is verified by using MATLAB/Simulink simulation software.The transient stability of FSFCL connected to power grid is verified by PSASP simulation.The simulation results show that FSFCL can effectively solve the problem of large current and voltage drop caused by short circuit fault,and also improve the transient stability of the system.
作者
马莉
黄欣
钱勇
吴玫蓉
MA Li;HUANG Xin;QIAN Yong;WU Meirong(Power Research Institute of State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan Ningxia 750011,China;North China Electric Power University,Baoding Hebei 071003,China;Maintenance Company of State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan Ningxia 750011,China)
出处
《宁夏电力》
2020年第1期1-7,共7页
Ningxia Electric Power
基金
国家电网公司总部科技项目(S229DK 160005)。
关键词
快速开关型故障限流器
短路电流
限流效果
暂态稳定性
fast switching fault current limiter
short circuit current
current limiting effect
transient stability
