Dynamic Simulation of the Overvoltage for Fault Current Limiter

Fault current limiter can quickly limit the short circuit current and ensure the safety and operation stability of the system. This is a potential short-circuit current limited technique. There are various classes of Fault Current Limiter(FCL), this paper presents the research mainly based on high-voltage current-limiting fuses and Fault current limiter for rapid isolating. Because the simulation model of the fuse is not provided in the current mainstream power system simulation software, a new fuse modeling method based on the software of PSCAD-EMTDC and ANSYS is proposed after much documents having been referenced, then fault current limiter model is established according to this method. This model is applied to the nonlinear circuit simulation system which is used for the simulation analysis of on-off overvoltage about FCL. The simulation results are similar with the actual experimental results, it sufficiently shows the accuracy of this method for on-off process by simulated fault current limiter.