Gain scheduled and robust H∞ control above rated wind speed for wind turbines

Sandquist, Fredrik and Muskulus, Michael and Anaya-Lara, Olimpo (2012) Gain scheduled and robust H∞ control above rated wind speed for wind turbines. Energy Procedia, 24. pp. 186-193. ISSN 1876-6102

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    Abstract

    This paper investigates two different approaches for individual pitch control for wind turbines. The first one is a gain scheduled decentralised control design and the second one is a robust H∞ loop shaping control design. Both controllers work well in the region above rated wind speed, exhibiting a response that is mostly independent of wind speed. The investigation is conducted based on the NREL 5MW benchmark wind turbine. Turbine modeling and control is conducted in FAST and Simulink.