A modified SFCL model performance investigation for a three-phase transmission network

The demand for increased energy consumption has led to the integration of distributed renewable energy sources with the existing transmission and distribution systems. It has helped in reducing dependency on conventional power generating sources. However, the integration of such sources has led to a rise in fault current levels. This causes overriding the capacity of existing switch-gear and protection devices. Superconducting fault current limiters (SFCL) have come up as a solution to mitigate the effect of rising fault current levels causing mal-operation of the protection devices. In this paper, a modification in the model of an existing Hybrid-SFCL has been proposed to enhance its electrical characteristics. A three-phase power system is simulated to show its efficacy. The results of the existing and modified Hybrid-SFCL models are compared. The analysis has been done in MATLAB/Simulink to validate the proposed model and its performance has been investigated.