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Reducing Conductor Usage in Superconducting Machines by Multiple Power Supplies

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3 Author(s)
Jensen, B.B. ; Dept. of Electr. Eng., Tech. Univ. of Denmark, Lyngby, Denmark ; Mijatovic, N. ; Abrahamsen, A.B.

This paper presents and applies a method of reducing the needed amount of superconductor in a superconducting machine by supplying the superconductor from multiple power supplies. The method is presented and validated experimentally in a constructed prototype. Thereafter, a superconducting tape is tested experimentally for allowable current density in a flux density spanning from 0 to 16 T and a temperature range from 5 K to 85 K. Using the experimental data from the superconductor, the proposed method is applied to minimize the usage of superconductor in a 10-MW superconducting direct drive wind turbine generator.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:23 ,  Issue: 5 )