Tri-axial Core Design of a Distribution System Class HTS Power Cable
نویسندگان
چکیده
A tri-axial HTS power cable has been proposed and developed to reduce the number of HTS wires because it has copper shield instead of HTS shield. However, it has a drawback which is an inherent imbalance problem due to an asymmetry configuration in the cable. The authors designed a 22.9 kV/50 MVA class tri-axial HTS cable. The inherent imbalance problem of the three-phase currents in the tri-axial HTS power cable has been minimized through the adjustment of pitches and radii of each layer. An FEM analysis program and a power system analysis program were used to analyze the characteristics of the designed triaxial HTS power cable. The AC loss and magnetic characteristics of the designed cable were analyzed according to magnitude of operating currents. The design results of the tri-axial HTS power cable are discussed in detail.
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