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, dynamically, and electromagnetically until the arc disappears. Installation elements that can withstand fault currents or damage existing components require a high cost. Installing 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. In this study, a dynamic model was created in MATLAB/Simulink for 1G and 2G HTS used in R-SFCL, and their response to single phase-to-ground fault was observed. According to the simulation results, the most advantageous HTS type for R-SFCL was determined. The fault current level, limitation rate, resistance and temperature values, and response times were compared in terms of limiting performance.