Analytical and Multiphysics Approach to the Optimal Design of a 10-MW DFIG for Direct-Drive Wind Turbines

作者：Colli Vincenzo Delli^*; Marignetti Fabrizio; Attaianese Ciro

来源：IEEE Transactions on Industrial Electronics, 2012, 59(7): 2791-2799.

DOI：10.1109/TIE.2011.2168790

• AC generators
• induction machines
• wind power

This work deals with a 10-MW doubly fed induction generator (DFIG) for direct-drive operation of wind turbines with a reduced-size converter. The work includes a lumped parameter design, an optimization procedure, a finite-element analysis (FEA), and an electrical performance assessment. A monetary cost was assumed as a cost function, and an approximation of the construction cost as a function of the axial length was obtained. The found solutions were checked by FEA in order to assure the mechanical feasibility. Further verifications were developed to allow a conclusive performance evaluation. The optimization improved the cost of the proposed DFIG, including materials, losses, and converter, making it slightly cheaper than an available permanent-magnet synchronous generator.

• 出版日期2012-7