LPV Robust Gain-Scheduling Control for Doubly Fed Induction Generator Wind Energy Conversion System

To deal with the uncertainty of the time varying and immeasurable system of the doubly fed induction generator WECS, a gain-scheduling controller based on LPV system is designed. In this controller, a partial linearized mathematical model is adopted and H infinity theory is used for harvesting the maximum power below the rated wind velocity. Simulation results show that the proposed LPV robust controller has good robustness, immunity and a better dynamic behavior.