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

fYear

2011

fDate

15-17 April 2011

Firstpage

5485

Lastpage

5489

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Information and Control Engineering (ICEICE), 2011 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-8036-4

Type

conf

DOI

10.1109/ICEICE.2011.5776941

Filename

5776941