大型客机自动着陆中的组合非线性反馈控制  

Composite Nonlinear Feedback Control of Huge Airplane Automatic Landing

作　　者：齐素英[1] 张宁[2] 

机构地区：[1]忻州师范学院数学系,山西忻州034000 [2]中航工业西安飞行自动控制研究所,西安710065

出　　处：《工程数学学报》2014年第6期816-828,共13页Chinese Journal of Engineering Mathematics

基　　金：复杂环境下的无人机自主感知与控制技术研究(20115818017)~~

摘　　要：Lyapunov稳定性理论广泛应用于现代控制系统的分析与设计中.本文针对具有非线性特性和输入饱和约束的大型客机着陆模型,引入了组合非线性反馈控制算法.首先介绍了基于该算法的控制律设计原理与工程实用性;然后基于Lyapunov稳定性理论给出了该算法在吸引域内的稳定性条件;接着详细设计了Boeing747飞机自动着陆纵向控制律,设计中秉承"线性系统设计,非线性系统验证"的工程实践常用思路;最后,通过Matlab数值仿真以及Flight Gear视景仿真,验证了控制系统具有很好的鲁棒稳定性和精确跟踪能力.Lyapunov stability theory is widely used in modern control system. We present in this paper a newly developed nonlinear control technique, i.e., the composite nonlinear feed-back （CNF） control, this algorithm’s stability has been proven through the Lyapunov stability theory. Both nonlinear and linear landing models of the Boeing747 huge airplane are proposed and a flight control law is designed using the method of CNF, during the designing process, the “linear system designing and nonlinear system validating” engineering practice has been adopted. Numerical simulations through Matlab and visual simulation through Flight Gear both show the design is successful.

关 键 词：LYAPUNOV稳定性 饱和约束 大型客机 组合非线性反馈 

分 类 号：O231.2[理学—运筹学与控制论]