Title :
The effect of wind shear and pitch control delaying on wind turbine blade loading
Author :
Fu Jie ; Zhang Hui-ling ; He Bin ; Fan Qin-shan
Author_Institution :
Div. of Mech., Nanjing Univ. of Technol., Nanjing, China
Abstract :
The loading analysis model of wind turbine blade is established according to strip theory of rotor aerodynamics. For a 1.5 MW wind turbine, the force distribution on blade at rated wind speed and the moments of the blade root in various work case are dealt with by this model. The Effect of pitch control delaying on the loads of wind turbine blade is specially analyzed, too. The results show that the moment of the blade root under wind shear and weight of the blade changes periodically, which has a large effect on the fatigue life of the blade. Furthermore, as a result of the pitch control delaying, aerodynamic loads of the blade will increase rapidly with the increase of wind speed. Hence, the loads analysis of this paper may be applicable to the design analysis of the blade.
Keywords :
aerodynamics; blades; power station control; power station load; rotors; wind power plants; wind turbines; blade root; force distribution; loading analysis model; pitch control; power 1.5 MW; rotor aerodynamics; wind shear; wind turbine blade loading; Aerodynamics; Blades; Delay; Fatigue; Force; Wind speed; Wind turbines; aerodynamics performance; fatigue load; pitch control delay; wind shear; wind turbine blade;
Conference_Titel :
Electric Information and Control Engineering (ICEICE), 2011 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-8036-4
DOI :
10.1109/ICEICE.2011.5776941
