Projeto de controle baseado em dados para a regulação de velocidade do rotor em turbinas eólicas

This article presents the application of the Virtual Reference Feedback Tuning (VRFT) method in rotor speed regulation of wind turbines through colective pitch control. From data collected on the simulated turbine, a Proportional Integral (PI) controller is designed such that the closed-loop system exhibts a behavior as close as possible to a given reference model. Fundamental aspects for the application of the VRFT method will be analyzed, such as the choices of reference model and operating point for data collection. Simulations in the FAST software considering a 5MW turbine illustrate the method when tracking rotor speed references and rejecting disturbances in the wind speed.