改进ADRC及其在飞行增稳控制中的应用  

Improved ADRC and its application in flight control augmentation

作　　者：刘基玉[1] 刘林[1] 樊战旗[1] 

机构地区：[1]飞行自动控制研究所控制一体化技术国家级重点实验室,陕西西安710065

出　　处：《飞行力学》2010年第3期35-38,共4页Flight Dynamics

摘　　要：非线性自抗扰控制器(ADRC)具有极强的鲁棒性和优异的控制性能,但控制器参数设计较为繁琐。引入了新的非线性函数,简化了控制器的参数设计,且非线性扩张状态观测器(ESO)在原点处具有渐进稳定性。设计了基于模型跟踪的一阶ADRC飞机纵向增稳控制器。仿真结果表明,在大飞行包线内飞机的动态特性发生了很大变化,不改变ADRC参数而只进行跟踪模型动压调参,飞行控制系统均满足一级品质要求,表现了极强的鲁棒性能。The nonlinear active disturbance rejection controller（ADRC） has a good robustness and control ability except the difficult to design a set of satisfying parameters of the controller.In this paper,a new nonlinear function is introduced.And the designed nonlinear extended state observer（ESO） is approximately stable beside zero.The simulations of the first order ADRC are designed for the longitudinal control of an aircraft with first level flighting qualities and shows good robustness in a large flight envelope in which the properties of the aircraft change a lot.

关 键 词：扩张状态观测器 非线性函数 模型跟踪 鲁棒性 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]