Vibration and aeroelastic control of wind turbine blade based on B-L aerodynamic model and LQR controller

Journal of Vibroengineering

卷:19

Tingrui Liu¹ 

[1] College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, China;

关键词: flap bending-lag bending-twist coupling;    Beddoes-Leishman model;    linear quadratic controller;    Galerkin method;    aeroelastic control;   

DOI  :  10.21595/jve.2016.17230

来源: DOAJ

【 摘 要 】

Vibration and aeroelastic control of anisotropic composite wind turbine blade modeled as symmetric layup beam analysis have been investigated based on Beddoes-Leishman (B-L) dynamic stall aerodynamic model and linear quadratic controller. The blade is modeled as single-cell thin-walled beam structure, exhibiting flap bending-lag bending-twist coupling deformation, with constant pitch angle set. The stall flutter and aeroelastic control of composite blade are investigated based on some structural and dynamic parameters, with structural damping computed. The aeroelastic partial differential equations are reduced by Galerkin method, with the nonlinear aerodynamic forces computed by the method of fitting static elastic coefficients. Linear quadratic controller is applied to enhance the vibrational behavior in stall situation under divergent conditions and stabilize displacements that might be unstable in the absence of control.

【 授权许可】

Unknown