作　　者： ; ; ;

机构地区： 西北工业大学自动化学院

出　　处： 《西北工业大学学报》 2005年第1期36-39,共4页

摘　　要： 针对由局部输入状态可镇定和输入状态稳定的两个子系统组成的前馈系统 ,设计饱和控制达到局部输入状态镇定的目的 ,即相应的闭环为输入受限的输入状态稳定。首先研究其中一个子系统的局部输入状态镇定问题 ,获得输入状态间的增益 ,然后基于一定的增益条件 ,运用小增益原理循序确定饱和控制的饱和度 ,得到前馈系统的简单鲁棒控制律。作为验证 ,设计一个低维前馈模型的饱和控制 。 For a feedforward system that consists of a local input-to-state stabilizable subsystem and an input-to-state stable subsystem, a saturated controller is designed as a local input-to-state stabilizer, that is, the corresponding closed loop is input-to-state stable with restrictions on inputs. Firstly, the local input-to-state stabilization problem of one subsystem is studied and the gain between inputs and states is obtained. Then, under certain gain hypotheses, the saturation degree of the saturated controller is set systematically under the guidance of small gain theory, and a simple saturated controller is obtained which can realize local input-to-state stabilization of the feedforward system. Our design is a kind of meaningful attempt in the sense that the robust stabilization problem of feedforward systems is hard to be tackled and has not been widely investigated yet. As a demonstration, a saturated controller is designed for a low-dimension feedforward model and simulation results are coincident with theoretical analyses.

关 键 词： 输入状态稳定 局部输入状态稳定 小增益原理 饱和控制

领　　域： [自动化与计算机技术] [自动化与计算机技术]