阵风扰动下大柔性飞行器姿态跟踪控制设计  

Attitude control of a very flexible aircraft with gust disturbance

作　　者：吕蓉蓉[1] 徐亮[1] 薛辰 陆宇平[1] LV Rong-rong;XU Liang;XUE Chen;LU Yu-ping(School of Automation,Nanjing University of Aeronautics and Astronautics,Nanjing 211100,China)

机构地区：[1]南京航空航天大学自动化学院,江苏南京211100

出　　处：《电子设计工程》2018年第18期6-10,共5页Electronic Design Engineering

基　　金：国家自然科学基金(11572149)

摘　　要：大柔性飞行器是一类高空长航时飞行器,机翼展弦比大、柔性程度大。文中首先对非线性的大柔性飞行器模型进行线性化与降阶,之后对得到的模型进行模型参考自适应控制器的设计。在设计模型参考自适应控制律之前,首先设计线性二次型调节器(LQR)控制器,接着考虑不确定性,在LQR控制器的基础上,构造参考模型,设计模型参考自适应控制律。仿真结果显示,在阵风扰动下,模型参考自适应控制器能良好地跟踪俯仰角。Very Flexible Aircraft is a class of High Altitude Long Endurance aircraft,with large aspect ratio and great flexibility. In this paper,the nonlinear model of a Very Flexi-ble Aircraft is linearized and reduced. Then the model reference adaptive controller is des-igned for the obtained model. Before designing the model reference adaptive control law,a linear quadratic regulator（LQR）is designed firstly.Then,considering uncertainties,a r-eference model is constructed based on the LQR,and a model reference adaptive control l-aw is designed. The simulation results show that the model reference adaptive controller can track the pitch angle well with gust disturbance.

关 键 词：大柔性飞行器 模型参考自适应控制器 阵风扰动 姿态跟踪 

分 类 号：V249[航空宇航科学与技术—飞行器设计]