Combining Fault Current Limiting Technology with DC Breaking Topology to Minimize Fault Current, Interruption Time and Dissipated Energy Stress

HVDC system is one of the feasible solutions to minimize transmission losses and cost required for long distance and large scale power system. For the wide use and reliability of HVDC transmission system effective protection technique is required. Super-conducting fault current limiter (SFCL) is the best solution to minimize heavy fault current in HVDC System. Therefore SFCL is used with the HVDC circuit breaker to minimize fault current, interruption time and dissipated energy stress on HVDC circuit Breaker. For the simulation work, three different types of SFCL’s are modeled including R-Type, RL-Type, RLC-Type SFCL’s which are used with hybrid HVDC circuit breaker. In order to estimate the performance of combined application of superconducting fault current limiter on HVDC circuit breaker, simulation studies are performed using MATLAB software. From the simulation results it is found that among these three types of SFCL’s, RLC-Type SFCL with hybrid HVDC circuit breaker exhibits the best observable enhancement.