Detailed Review of a Novel Model SFCL for Grid

Abstract

Our paper shows an RL-Indirect SFCL model (RL-I-SFCL). The applied superconducting tape is SF 12100 (Furukawa Electric Group). In the case of the operational current of a grid, the superconducting wire is in a serial connection with the grid as in a resistive SFCL. If we have a short circuit current on the grid, the RL-I-SFCL protection includes an extra inductance. This inductance is in a serial connection with the short circuit current. The change of the resistance of the superconducting wire creates an extra impedance in the main circuit without delay. It is an advantage. We have measured our SFCL and developed a simulation program by using MATLAB program. Hence, we could test our real measured results using a simulation program. We examined only the steady state in fault. Our checking was successful. We can protect the grid, switchgears and the superconducting wire effectively with this solution. We would like to contribute with this novel model solution to the development of an SFCL in industry because this technology is very simple and it can work safely.