Due to nonlinear loads integration in the grid, wind turbines type DFIG based on the doubly fed induction generator must contribute with their ancillary services to the improvement of energy quality, especially in the mitigation of harmonic currents imposed by these nonlinear loads. In this paper, the strategy control of the DFIG is not only limited in the optimal powers control, but also ameliorating of harmonic currents mitigation existing in the grid. To achieve this objective, a new nonlinear control strategy based on the integral Backstepping strategy has been proposed to be flexible rotor currents dynamics, and thanks to the contribution of rotor side converter RSC control. This choice presents more advantages compared with the control of the gride side converter GSC as an active filter. The used method in this paper and which serves to identify the harmonic currents is based on synchronous reference frame SRF. The simulation results show the effectiveness of the proposed control strategy which is manifested by a net reduction in the total harmonic distortion THD.<
Alan : Eğitim Bilimleri; Fen Bilimleri ve Matematik; Sağlık Bilimleri; Sosyal, Beşeri ve İdari Bilimler
Dergi Türü : Uluslararası
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