Real time simulation of nonlinear generalized predictive control for wind energy conversion system with nonlinear observer |
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Authors: | Kamel Ouari Toufik Rekioua Mohand Ouhrouche |
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Affiliation: | 1. Laboratory LTII, University of Bejaia, Algeria;2. Laboratory LICOME, University of Quebec at Chicoutimi, Canada |
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Abstract: | In order to make a wind power generation truly cost-effective and reliable, an advanced control techniques must be used. In this paper, we develop a new control strategy, using nonlinear generalized predictive control (NGPC) approach, for DFIG-based wind turbine. The proposed control law is based on two points: NGPC-based torque-current control loop generating the rotor reference voltage and NGPC-based speed control loop that provides the torque reference. In order to enhance the robustness of the controller, a disturbance observer is designed to estimate the aerodynamic torque which is considered as an unknown perturbation. Finally, a real-time simulation is carried out to illustrate the performance of the proposed controller. |
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Keywords: | Nonlinear generalized predictive control (NGPC) Doubly-fed induction generator (DFIG) DFIG-based wind turbine Real-time simulation |
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