Development and HIL Testing of a Protection System for the Application of 154-kV SFCL in South Korea

Abstract

In South Korea, a 154-kV single-phase superconducting fault current limiter (SFCL) system was developed and installed at the Gochang power test center of Korea Electric Power Corporation in 2016. Korea Electrotechnology Research Institute proposed a novel protection algorithm for the application of 154-kV SFCLs to a real power system and designed a protection scheme of the Gochang power test center. This paper verified the protection scheme using the hardware in the loop testing that a commercial protective relay system with the novel algorithm is tested by real time digital simulator.