一种推广的组合非线性输出反馈控制  

Extended composite nonlinear output feedback control

作　　者：彭文东[1] 苏剑波[1] 

机构地区：[1]上海交通大学自动化系,上海200240

出　　处：《控制理论与应用》2009年第11期1185-1191,共7页Control Theory & Applications

基　　金：国家自然科学基金资助项目(60675041);教育部新世纪优秀人才支持计划资助项目(NCET–06–0398)

摘　　要：针对多变量饱和线性系统的时变参考输入跟踪问题,研究了一种组合非线性输出反馈控制器的设计方法.基于原始的组合非线性反馈理论,构造了全阶和降阶输出反馈控制器.控制器由线性输出反馈项和非线性反馈项组成,使得闭环系统在包含于吸引域的不变集内渐近稳定.除了能够跟踪时变参考输入外,系统还具有良好的动态性能.仿真结果说明了所开发控制器的有效性.A new composite nonlinear output feedback controller is proposed to track the time-varying reference inputs for multivariable linear systems with input saturation. Based on the original composite nonlinear feedback theory, we respectively developed the full-order and the reduced-order output feedback controllers. Both controllers consist of linear output feedback and nonlinear feedback, resulting in a closed-loop system with asymptotic stability in the invariant set inside the domain of attraction. Besides the guaranteed ability of tracking time-varying reference inputs, the systems have an excellent transient performance. Simulation results demonstrate the feasibility of the proposed controller.

关 键 词：执行器饱和 组合非线性输出反馈 稳定性 时变参考输入 动态性能 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]