摘要
研究了具有时变采样周期的网络控制系统的H∞鲁棒控制器设计问题.提出了基于变采样周期的切换方法(采样周期在有限集合内切换),并利用该方法将存在时变采样周期、长时延以及丢包的网络控制系统建模为切换系统.在此基础上,通过把一个非凸的可行性问题转化为受线性矩阵不等式约束的多目标优化问题,研究了网络控制系统的H∞控制器设计方法.仿真结果验证了基于采样周期切换的H∞控制器设计方法的有效性.
The design problem of robust H∞ controller for networked control system （NCS） with time-varying sampling period is studied. Based on the varying sampling period, a switching method, of which the sampling period switches in a finite set, is proposed to model the NCS with time-varying sampling period, long-time delay and packet dropout as a switched system. With the proposed switching method, a non-convex feasibility problem is formulated into a multi-objective optimization problem subject .to LMI （linear matrix equality） constraints, and an H∞ controller design method for NCS is presented. The simulation results illustrate that the proposed H∞ controller design method for NCS with sampling period switching is effective.
出处
《信息与控制》
CSCD
北大核心
2007年第3期278-284,共7页
Information and Control
基金
国家自然科学基金资助项目(60521003
60674021)
教育部新世纪优秀人才支持计划资助项目(NCET-04-0283)
教育部创新团队计划资助项目(IRT0421)
教育部博士点基金资助项目(20060145019)
关键词
网络控制系统
H∞控制
切换
时变采样周期
networked control system （NCS）
H∞ control
switching
time-varying sampling period
