Disturbance Accommodation Control of Wind Turbines Based on Sliding Mode Approach

摘要

This paper presents a novel robust sliding mode controller design for wind turbines based on output feedback and disturbance rejection schemes. Considered horizontal axis wind turbine has 5MW capacity with variable speed. For this purpose, first, using rotor speed, system states are estimated while wind is considered as an exogenous state. Then, robust disturbance accommodation controller (DAC) based on sliding mode (SM) is developed. Finally, the efficiency of the proposed DAC-SM approach is compared with existing DAC method. As the results verify, DAC-SM scheme provides satisfactory performance against uncertainties.