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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.