Superconducting MV cables to replace HV cables in urban area distribution grids

This paper presents results of a study investigating a permanent grid deployment of medium voltage superconductor cables in combination with superconducting fault current limiters within a typical urban area power system in Germany. A completely new grid concept, which only becomes feasible through the use of superconductor cable systems, is shown. Further, several different cable options, including superconducting and conventional cables, are compared. As a result of the study it turns out that superconducting 10 kV cables are technically as well as economically feasible means to replace conventional 110 kV cables leading to simplified 110/10 kV substations in urban areas.