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. 2014 Jan;53(1):76-84.
doi: 10.1016/j.isatra.2013.08.004. Epub 2013 Sep 7.

Real Time Simulation of Nonlinear Generalized Predictive Control for Wind Energy Conversion System With Nonlinear Observer

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Real Time Simulation of Nonlinear Generalized Predictive Control for Wind Energy Conversion System With Nonlinear Observer

Kamel Ouari et al. ISA Trans. .

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.

Keywords: DFIG-based wind turbine; Doubly-fed induction generator (DFIG); Nonlinear generalized predictive control (NGPC); Real-time simulation.

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