Design of a 10-MW-Class Wind Turbine HTS Synchronous Generator With Optimized Field Winding

In this paper, the electromagnetic design of a 10-MW-class high-temperature superconducting (HTS) wind turbine synchronous generator is discussed. The primary designed machine is modeled using a finite-element method, and the generator characteristics are obtained. As one of the most important characteristics of a generator is voltage harmonics contents, excitation field winding dimensions through sensitivity analysis are optimized in order to reduce voltage and magnetic field harmonics. Behavior of both the excitation field winding producing magnetic flux density and voltage harmonic components by varying HTS coil width and height is obtained. This paper shows that output voltage harmonics contents of the proposed generator are sensitive to the excitation field coil dimensions.

[1]  Xu Yang,et al.  Development and prospects of offshore wind power , 2010, 2010 World Non-Grid-Connected Wind Power and Energy Conference.

[2]  Henk Polinder,et al.  Review of Generator Systems for Direct-Drive Wind Turbines , 2008 .

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

[4]  N. Mijatovic,et al.  Design Study of 10 kW Superconducting Generator for Wind Turbine Applications , 2009, IEEE Transactions on Applied Superconductivity.

[5]  Prasad Enjeti,et al.  Multilevel Converters: a Survey , 1999 .

[6]  Pascal Tixador,et al.  Comparison of numerical methods for modeling of superconductors , 2002 .

[7]  M. Wilke,et al.  Design Challenges and Benefits of HTS Synchronous Machines , 2007, 2007 IEEE Power Engineering Society General Meeting.

[8]  Frede Blaabjerg,et al.  Multilevel inverter by cascading industrial VSI , 2002, IEEE Trans. Ind. Electron..

[9]  S. Iniyan,et al.  A review of wind energy technologies , 2007 .

[10]  Fang Zheng Peng,et al.  Multilevel converters-a new breed of power converters , 1995, IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting.

[11]  Liyi Li,et al.  Design of the Cryogenic System for a 400 kW Experimental HTS Synchronous Motor , 2010, IEEE Transactions on Applied Superconductivity.

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

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

[14]  Liye Xiao,et al.  Design and Model Test of the Racetrack Excitation Coil in a Novel High Temperature Superconducting Generator , 2010, IEEE Transactions on Applied Superconductivity.

[15]  Y. X. Chen,et al.  Jc–B characteristics for bulk single domain YBCO superconductors , 2003 .

[16]  Bertrand Dutoit,et al.  Finite element method simulation of AC loss in HTS tapes with B-dependent E-J power law , 2001 .

[17]  W. Nick,et al.  High-temperature-superconducting machines- a high-technology step for large rotating electric machines , 2006, International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006..

[18]  H. Ohsaki,et al.  Design study of wind turbine generators using superconducting coils and bulks , 2009, 2009 International Conference on Clean Electrical Power.

[19]  N. Maki,et al.  Study of practical applications of HTS synchronous Machines , 2005, IEEE Transactions on Applied Superconductivity.

[20]  T.J.E. Miller,et al.  Comparative design and performance analysis of air-cored and iron-cored synchronous machines , 1977 .

[21]  Fang Zheng Peng,et al.  Multilevel inverters: a survey of topologies, controls, and applications , 2002, IEEE Trans. Ind. Electron..

[22]  Guomin Zhang,et al.  Design of a High Temperature Superconducting Generator for Wind Power Applications , 2011, IEEE Transactions on Applied Superconductivity.

[23]  Jan K. Sykulski,et al.  Design of a 100 kVA high temperature superconducting demonstration synchronous generator , 2002 .

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

[25]  C. Træholt,et al.  Superconducting wind turbine generators , 2010 .

[26]  Swarn S. Kalsi,et al.  Development status of rotating machines employing superconducting field windings , 2004, Proceedings of the IEEE.

[27]  A. Rezzoug,et al.  Influence of Temperature and/or Field Dependences of the $E-J$ Power Law on Trapped Magnetic Field in Bulk YBaCuO , 2007, IEEE Transactions on Applied Superconductivity.

[28]  S Umashankar,et al.  Cost effective fully fed wind turbine HTS generator: An alternative to existing generators in offshore wind farms , 2011, India International Conference on Power Electronics 2010 (IICPE2010).

[29]  Leopoldo García Franquelo,et al.  Modeling Strategy for Back-to-Back Three-Level Converters Applied to High-Power Wind Turbines , 2006, IEEE Transactions on Industrial Electronics.