Limitation Analysis of 1st and 2nd Generation Superconductors used in Resistive Superconductor Fault Current Limiters

Abstract

Fault currents in power systems force valuable power system elements thermally, electro dynamically, and electromagnetically until the arc disappears. Installation elements that can withstand fault currents or damage to existing components require a high cost. Both the installation of components that withstand fault currents and the damage of fault currents to existing components are costly. Resistive Superconducting Fault Current Limiter (R-SFCL), one of the modern limiting methods, increases the safety and sustainability of the system by eliminating these risks. This study created a dynamic model in MATLAB/Simulink for 1G and 2G HTS used in R-SFCL designs, and their responses to single phase-to-ground fault were observed. With the simulation results, the most advantageous type for the use of R-SFCL has been determined, and the fault current level, limitation rate, resistance and temperature values, and finally response times have been compared in terms of limiting performance.