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The Comparison and Analysis of the DFIG Behavior Under PI, Fuzzy and Sliding Mode Controllers for Wind Energy Conversion System in the Grid Connected Mode

Hicham Lhachimi(1*), Yassine Sayouti(2), Youssef Elkouari(3)

(1) The Laboratory of Physics of Condensed Matter and Renewable Energy, Hassan II University, Morocco
(2) The Laboratory of Electronics, Energy, automation and information processing, Hassan II University, Morocco
(3) The Laboratory of Physics of Condensed Matter and Renewable Energy, Hassan II University, Morocco
(*) Corresponding author



In this paper, the vector control strategy along with a non linear control are applied to the doubly fed induction generator (DFIG) based wind energy. Three control strategies (PI, Fuzzy and sliding mode control) are explained, analysed and compared in terms of response time, harmonic filtering and robustness to the parametric variation. These control strategies are evaluated in the steady and transient state to control both the active and the reactive power in the grid connected mode. The analysis of the DFIG behaviour under the mentioned control strategies is verified in the simulations. Also, a representation of numerical results is displayed in a summary table. The three strategies control present some advantages and drawbacks in term of performances when they operate with power optimization and power limitation strategies. However, the sliding mode control is better under the parameters variation and speed change. Although, the fuzzy control delivers a fast response time and presents a good harmonic distortion value(THD) while the PI control ensures a perfect precision during constant wind speeds.
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Doubly Fed Induction Generator; Fuzzy Control; MPPT; PI Control; Pitch Control; Sliding Mode Control; THD; Vector Control; Wind Turbine

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