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长时延网络控制系统的鲁棒预测控制

发表时间:2010-04-30  浏览量:1351  下载量:617
全部作者: 刘安东,俞立,张文安
作者单位: 浙江工业大学信息工程学院,浙江省嵌入式系统联合重点实验室
摘 要: 针对具有输入约束和不确定长时延的网络控制系统(networked control systems,NCSs),研究使闭环系统渐近稳定且滚动时域性能指标在线最小化的鲁棒预测状态反馈控制律的设计问题。基于模型预测控制的滚动优化原理,给出了闭环NCS渐近稳定且具有鲁棒性能指标上界的充分条件。进而,通过求解一个具有线性矩阵不等式(linear matrix inequalities,LMIs)约束的凸优化问题,提出了状态反馈控制律的设计方法。最后,通过仿真研究验证了所提出方法的有效性。
关 键 词: 控制理论;网络控制系统;长时延;鲁棒预测控制;线性矩阵不等式
Title: Robust predictive control for networked control systems with long time delays
Author: LIU Andong, YU Li, ZHANG Wenan
Organization: College of Information Engineering, Zhejiang University of Technology, Zhejiang Provincial United Key Laboratory of Embedded System
Abstract: The robust predictive state feedback controllers design problem is investigated in this paper for a class of networked control systems (NCSs) with uncertain long delays and input constraints. The designed controllers guarantee that the closed-loop NCS is asymptotically stable and that the on-line receding horizon performance index is minimized. Sufficient conditions for the closed-loop NCS to be asymptotically stable and the robust performance index to be upper bounded is derived by using the receding optimization principle. Furthermore, the state feedback control law is obtained by solving a convex optimization problem with linear matrix inequalities (LMIs) constraints. Finally, an example is given to demonstrate the effectiveness of the proposed method.
Key words: control theory; networked control systems; long time delays; robust predictive control; linear matrix inequalities
发表期数: 2010年4月第8期
引用格式: 刘安东,俞立,张文安. 长时延网络控制系统的鲁棒预测控制[J]. 中国科技论文在线精品论文,2010,3(8):762-768.
 
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