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We have investigated the properties of a superconducting direct drive generator suitable for demonstration in a small scale 11kW wind turbine. The engineering current density of the superconducting eld windings is based on properties of coated conductors wound into coils holding of the order 68 meters of tape. The active mass of the generators has been investigated as function of the number of poles and a 4 pole generator is suggested as a feasible starting point of an in-eld demonstration of the system reliability. An active mass of m = 421kg and a usage of 3.45km of tape will be needed to realize such a generator with a peak ux density in the airgap of B0 = 1.5 T

Design Study of Coated Conductor Direct Drive Wind Turbine Generator for Small Scale Demonstration