Electrical Design Study of 10-MW Salient-Pole Wind Turbine HTS Synchronous Generators

A conceptual structure of a 10-MW salient-pole wind turbine generator with race-track-shaped high-temperature superconductor (HTS) field coils is proposed, and a novel electrical design method for the salient-pole wind turbine HTS synchronous generators (WTHGs) is developed. In addition, the novel electrical design method derivation is introduced in detail according to the design process. In addition, the influence of some main machine parameters, e.g., pole pitch, stator outer diameter, magnetic flux density in the stator teeth, and electric loading, on HTS generator performance is clarified, and the optimal parameters are obtained thereby. Moreover, the optimized performance parameters of a 10-MW WTHG are compared with the conventional wind turbine generators with copper field windings. Finally, it is indicated that large-scale WTHGs have a higher power density, lighter weight, and higher efficiency than the conventional counterparts.