LIDAR-based robust wind-scheduled control of wind turbines

LIDAR is widely used to design feedforward controllers for wind turbines with a nominal model linearized at a specific wind speed operating point. However, turbine´s dynamics depend on wind speed. Additionally, turbine´s unmodeled dynamics and inaccuracy of LIDAR measurement can degrade the performance of the LIDAR-based feedforward controllers. In this paper, a wind-scheduled feedback control strategy is proposed to consider these challenges in design of LIDAR-based controllers. In simulation, the proposed idea is implemented for pitch control of wind turbines at above rated wind speed. The results show that the proposed controller outperforms CART3´s baseline controller for generator speed regulation.