摘要
针对气动弹性的发散不稳定振动,阐述基于弦向刚性尾缘襟翼的2D翼型的等效滑模控制算法在风力机叶片颤振抑制中的应用。结构模型基于弹性挥舞/扭转位移的分析,纳入刚性尾缘襟翼的角度控制。气动力基于准稳态模型,附加旋转尾缘襟翼对气动力的影响效果。滑模控制算法分别基于辅助反馈控制和二次型反馈控制,实现位移响应分析、速度分析及襟翼角度输入控制信号和滑模函数的展示。控制算法硬件实施的可行性,通过一种基于过程控制的对象链接和嵌入(OPC)技术的半实物仿真实验平台得到验证。
In order to deal with the divergent unstable vibration of aeroelasticity,an equivalent sliding mode control(SMC)algorithms based on 2D airfoil profile with chordwise rigid trailing-edge flap structure is proposed in this work,which can be applied in flutter suppression of wind turbine blade.Based on analysis of the elastic flap-wise/twist displacements,the structure model is incorporated into the angle control of trailing-edge flap.Aerodynamic expressions are based on the quasi-steady model which is attached to the influences of rotating trailing-edge flap.The SMC algorithms are investigated based on auxiliary feedback control and quadratic feedback control respectively,so as to realize displacement response analysis,velocity analysis,and display of angle input control of trailing-edge flap and sliding mode function.The feasibility of the hardware implementation of the control algorithm is verified by hardware-in-theloop simulation platform via OLE for process control(OPC).
作者
刘廷瑞
Liu Tingrui(College of Mechanical&Electronic Engineering,Shandong University of Science&Technology,Qingdao 266590,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2021年第2期83-89,共7页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51675315)。
关键词
滑模控制
气动弹性
半实物仿真
刚性尾缘襟翼
二次型反馈控制
sliding mode control
aeroelasticity
hardware-in-the-loop simulation
rigid trailing-edge flap
quadratic feedback control
