基于Matlab新型桥式固态限流器晶闸管故障的仿真

利用Matlab中的电力系统仿真模块建立了单相新型桥式固态限流器模型,并简单介绍了其工作原理,对采用线性耦合变压器或饱和耦合变压器以及是否带旁路限流电感几种不同情况下固态限流器中晶闸管发生故障时对系统的影响进行了仿真.在对仿真结果进行分析比较的基础上,可知新型桥式固态限流器在采用旁路限流电感之后,在晶闸管发生故障时对系统的影响很小.

Simulation of the failure of thyristors of the new bridge type solid state limiter based on Matlab

Using simpowersystems in Matlab the model of the new bridge type solid state fault current limiter was built, and the principle was also briefly introduced. The effects on power systems by the failure of thyristors under different cases, such as when applying coupling by linear transformer or saturated transformer, and when applying bypass inductance, etc. , were simulated, analyzed, and compared. Simulation result shows that, the effects on power systems by the failure of thyristors is very small using the new ordge type solid state fault current limiter.