大型水平轴风力机叶片气弹稳定性研究及控制  

Research and Control of Blade Aeroelastic Stability of Large Horizontal Axis Wind Turbine

作　　者：常林 刘廷瑞[1] 徐玮 吴鸿才 CHANG Lin;LIU Tingrui;XU Wei;WU Hongcai(College of Mechanical ＆ Electronic Engineering, Shandong University of Science ＆ Technology, Qingdao 266590, Chin)

机构地区：[1]山东科技大学机械电子工程学院

出　　处：《机械设计与研究》2018年第2期199-204,共6页Machine Design And Research

基　　金：国家自然科学基金资助项目(51675315);山东科技大学研究生创新立项(SDKDYC180333)

摘　　要：阐述非线性气动弹性模型建立过程,修正后的非线性ONERA气弹模型基于拉格朗日方程和泰勒级数展开,经过小范围近似线性化,得到可直接分析的线性化气弹模型。模拟极端条件下叶片挥舞和摆振方向受迫振动情形,通过simulink模块搭建进行系统仿真。提出了最优PID控制方法和线性二次型的主动控制过程及控制结果对比分析。着重阐述了最优控制的控制思想和LQR控制的分析过程,得到易于实现的主动控制方法。所选取的LOR控制法适用广泛且成本较低、易于实现。The process of building nonlinear aeroelastic model is expounded,the modified nonlinear ONERA aeroelastic model base on Lagrange equation and Taylor series expansion,by small-scale approximate method,get the linearized aeroelastic model can be directly analyzed. Simulate the forced oscillation of blade flapping and lagging in extreme conditions,through the simulink module construction conduct system simulation. The active control of the optimal PID control method and the linear quadratic optimal control process are proposed. The control idea of optimal control and the analysis process of LQR control are emphasized,active control methods easy to implement are obtained.The selected LOR control method is widely applicable,it has low cost and is easy to implement.

关 键 词：非线性气弹 线性二次型控制 ONERA模型 小范围近似 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]