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Stochastic predictive tracking controller for maximum power point tracking in wind energy conversion system

This paper discusses the rotor speed tracking loop performance in maximum power point tracking (MPPT) in wind energy conversion system (WECS). A nontraditional loop configuration approach is used in which the aerodynamics torque is considered as loop disturbance. A generalized predictive control is used to achieve disturbance rejection and exact reference tracking. Penalty on control action change is applied to compromise between tracking performance and extracted power quality. Simulation results are provided to clarify the performance improvement of the proposed controller configuration over traditional controller (PI) with different wind profiles and different reference speed trajectory.