Title :
Stochastic wind turbine modeling for individual pitch control
Author :
Thomsen, Sven Creutz ; Niemann, Henrik ; Poulsen, Niels Kjolstad
Author_Institution :
Dept. of Inf. & Math. Modeling, Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
By pitching the blades of a wind turbine individually it is possible to attenuate the asymmetric loads caused by a non-uniform wind field - this is denoted individual pitch control. In this work we investigate how to set up a simplified stochastic and deterministic description of the wind and a simplified description of the aerodynamics with sufficient detail to design model-based individual pitch controllers. Combined with a simplified model of the wind turbine, we exemplify how to use the model elements to systematically design an individual pitch controller. The design is investigated in simulations.
Keywords :
aerodynamics; blades; pitch control (position); power generation control; wind; wind turbines; aerodynamics; asymmetric load attenuation; blades; model-based individual pitch controller design; nonuniform wind field; stochastic wind turbine modeling; Aerodynamics; Blades; Harmonic analysis; Mathematical model; Stochastic processes; Wind speed; Wind turbines;
Conference_Titel :
Control Conference (ECC), 2009 European
Conference_Location :
Budapest
Print_ISBN :
978-3-9524173-9-3