Application of bus-tie HTS-FCL on 154kV buses in the Korean Power System

This paper proposes the bus-tie application scheme of HTS-FCL (high temperature superconducting fault current limiter). The reduced amount of fault current by HTS-FCL is different by where the HTS-FCL is located. Therefore the inflow ratio of fault current (IRFC) is suggested to consider the effect of HTS-FCL´s location. The proposed scheme was applied to the Korean power system of 2010, and fault currents were calculated and analyzed with this coefficient. Simulations show that the location with high IRFC is adequate to install HTS-FCL but more considerations of other things are required to determine the location and capacity of HTS-FCL.