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Journal of Microwaves, Optoelectronics and Electromagnetic Applications
On-line version ISSN 2179-1074
SALLES, Maurício B. C.; CARDOSO, José R. and HAMEYER, Kay. Dynamic modeling of transverse flux permanent magnet generator for wind turbines. J. Microw. Optoelectron. Electromagn. Appl. [online]. 2011, vol.10, n.1, pp.95-105. ISSN 2179-1074. http://dx.doi.org/10.1590/S2179-10742011000100010.
The transverse flux permanent magnet machines have become an interesting possibility for offshore wind turbines. These machines have the highest relation between electrical torque and weight of active materials. The pole pair modular construction could eliminate or lower the gear ratio used in conventional wind turbines. This paper presents a dynamic model of a wind turbine equipped with a transverse flux permanent magnet generator connected to a direct-current power system using a combination of 3D finite element generator model and an aerodynamic model. The results indicate that the model can give accurate response for steady-state operation and for wind speed variations.
Keywords : electrical machines; finite element analysis; permanent magnet; transverse flux generator; wind turbines.