Simulation of a Power Electronic Based Fault Current Limiter (FCL) in Case of Different Faults

The effects of a fault current limiter (FCL) on different types of faults in a three-phase network are presented in this paper. The FCL is based on a six-pulse thyristor rectifier with a freewheeling diode. Parallel to the three branches of the rectifier a further thyristor branch is added to handle faults with connection to earth. The FCL is directly connected to a transformer's neutral terminal. For the simulations in Matlab/Simulink a simple network is used