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.
作者
吕蓉蓉
徐亮
薛辰
陆宇平
LV Rong-rong;XU Liang;XUE Chen;LU Yu-ping(School of Automation,Nanjing University of Aeronautics and Astronautics,Nanjing 211100,China)
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)
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
very flexible aircraft
model reference adaptive controller
gust disturbance
attitude control