Concept Design of Superconducting Power System Applying Distributed Switching Stations for the Metropolitan Area

This paper proposes a future power system having superconducting power cables, transformers and fault current limiters (FCLs). The proposed system is a new concept of superconducting power system (SPS) applying distributed switching stations for metropolitan areas. The SPS utilizes the large-capacity and environment-friendly characteristics of superconducting power equipment. The switching stations supply power load of distribution local areas with electric power. If the SPS is realized, we can resolve some problems in expanding power facility in metropolitan areas where power load is concentrated. In addition, the proposed system can maximize economic, social and environmental benefits. We carried out basic studies on the structure design and technical/economic evaluation of the SPS.