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.

[1]  Hiroyuki Ohsaki,et al.  Design study of wind turbine generators using superconducting coils and bulks , 2009 .

[2]  Yasuhiro Iijima,et al.  Evaluation of Rare-earth-based Coated Conductors , 2013 .

[3]  W. Musial,et al.  Large-Scale Offshore Wind Power in the United States: Executive Summary , 2010 .

[4]  C. Beduz,et al.  Coreless HTS Synchronous Generator Operating at Liquid Nitrogen Temperatures , 2007, IEEE Transactions on Applied Superconductivity.

[5]  M. Hsieh,et al.  Design and Analysis of High Temperature Superconducting Generator for Offshore Wind Turbines , 2013, IEEE Transactions on Magnetics.

[6]  M. Sekino,et al.  Comparison of Conventional and Superconducting Generator Concepts for Offshore Wind Turbines , 2013, IEEE Transactions on Applied Superconductivity.

[7]  K. Sivasubramaniam,et al.  High Power Density HTS Iron Core Machines for Marine Applications , 2007, 2007 IEEE Power Engineering Society General Meeting.

[8]  T Sato,et al.  Study of 10 MW-Class Wind Turbine Synchronous Generators With HTS Field Windings , 2011, IEEE Transactions on Applied Superconductivity.

[9]  Hiroyuki Ohsaki,et al.  Electromagnetic characteristics of 10 MW class superconducting wind turbine generators , 2010, 2010 International Conference on Electrical Machines and Systems.

[10]  B. Gamble,et al.  10 MW Class Superconductor Wind Turbine Generators , 2011, IEEE Transactions on Applied Superconductivity.

[11]  C. Lewis,et al.  A Direct Drive Wind Turbine HTS Generator , 2007, 2007 IEEE Power Engineering Society General Meeting.

[12]  K.W. Schmaeman,et al.  Compact, lightweight, superconducting power generators , 2004, 2004 12th Symposium on Electromagnetic Launch Technology.

[13]  Rouhollah Shafaie,et al.  Design of a 10-MW-Class Wind Turbine HTS Synchronous Generator With Optimized Field Winding , 2013, IEEE Transactions on Applied Superconductivity.