A Method to Design Saturated-Core Fault Current Limiters (SCFCL)

mohamadreza arab baferani, navid fahimi, Amirabbas Shayegani Akmal
2019 IET Generation, Transmission & Distribution  
Fault current limiter (FCL) is a kind of device with current-dependent impedance that has low impedance in normal state of power system, and high impedance during fault condition. Among all classes of FCLs, the saturated iron-core FCL (SICFCL) is practically the most favourable one nowadays. In this study, a numerical method for design and cost optimisation of SICFCLs is presented. It uses a set of constraints to ensure the desirable operation of the SICFCL based on its electrical and magnetic
more » ... haracteristics. For numerical calculations and optimisations, GAMS software has been used. Suitability of the method is approved by design, simulation and test of a 3500 VA prototype. Magnetic field distributions are simulated using COMSOL Multiphysics and performance of the designed SICFCL is evaluated in a power system hardware model. Simulation and experimental results show the satisfying agreement with predicted results by the proposed numerical method.
doi:10.1049/iet-gtd.2019.0546 fatcat:74ia42r6ofcklbed6mwv4lxkjm