摘要
针对一类多输入多输出非匹配不确定离散系统,在状态不完全可测的情况下,设计了输出反馈滑模控制器.首先利用Lyapunov函数方法和线性矩阵不等式技术,给出了滑动模面函数方程,并进行了稳定性证明;其次,为了减弱离散指数趋近律的抖振现象,给出了基于幂次函数趋近律的控制律设计和理论分析过程,最后根据仿真结果验证了该设计方法的可行性和有效性.
For a class of multi-input multi-output （MIMO） uncertain discrete-time systems, of which the states are not fully measured, an improved output feedback sliding mode controller was designed. First, a sliding mode surface function was established by using Lyapunov function method and linear matrix inequality （LMI） technique, with the stability of the sliding mode system proved. Then, a reaching law based on power function was presented to weaken the chattering of the system. Simulation results show the feasibility and effectiveness of the algorithm proposed.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2012年第2期187-190,共4页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金青年基金资助项目(50901015)
秦皇岛市科技计划项目(201001A011)
关键词
多输入多输出
离散系统
输出反馈
滑模控制
线性矩阵不等式
multi-input multi-output
discrete-time system
output feedback
sliding modecontrol
linear matrix inequality
作者简介
于驰(1979-),男,辽宁铁岭人,东北大学博士研究生;Corresponding author:王宏伟,Email:wanghw0819@163.com
