S. Taraft  , D. Rekioua  , D. Aouzellag  , 
    Performances Study of the DFIG Associated to the Variable Speed Wind Turbine Connected to the Grid,
    International Journal of Electrical and Power Engineering,
    Volume 2,Issue 5,
    2008,
    Pages 353-364,
    ISSN 1990-7958,
    ijepe.2008.353.364,
    (https://makhillpublications.co/view-article.php?doi=ijepe.2008.353.364)
    Abstract: The aim of this research is the study of the performances of the Doubly Fed Induction Generator (DFIG) in a wind turbine of high level powers at variable speed, connected to the electrical grid. The stator of the DFIG is directly connected to the grid, the rotor is connected to the grid fed by a direct frequency converter (called matrix converter). The control of the powers transit (active and reactive) between the aerogenerator and the grid is carried out by the adjustment of the rotor sizes of the DFIG. In a first part, the modeling of the various parts of the aerogenerator is presented. The Maximum Power Point Tracking (MPPT) algorithm to maximize the generated power is used. In a second part, the principle of powers control exchanged between the wind system and the grid is exposed. Finally, the simulation results of the dynamic behavior of the studied system are presented to justify the reliability of the model suggested and the order applied.
    Keywords: Wind turbine;DFIG;variable speed;matrix converter;power control;MPPT