基于状态预估的大延时网络化控制系统H_∞控制  

H_∞ control of networked control systems based on state preestimation

作　　者：李清华[1] 郭小刚[1] 马闯[1] 王常虹[1] 伊国兴[1] 

机构地区：[1]哈尔滨工业大学空间控制与惯性技术研究中心,哈尔滨150001

出　　处：《吉林大学学报（工学版）》2008年第5期1197-1201,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：航天支撑技术基金项目

摘　　要：针对一类具有随机大延时(延时大于系统的采样周期)的网络化控制系统,提出一种基于状态预估和时钟驱动的H∞控制器的设计方法,通过状态预估获取当前控制周期的预估控制状态,并通过相应的控制律计算出控制量输出。利用锥补线性化算法和LMI(Linear Ma-trix Inequality)给出了系统稳定的H∞次优控制器。仿真算例验证了本文结论的有效性和可用性。An approach of H∞ controller design based on time driven and state preestimation technologies was presented for a class of networked contro systems with stochastic large time delay （this delay is larger than sample period）. The control state of current periond was preestimated by the last state and the time delay, and the output was calculated by relative control law. The H∞ suboptimal controller was given by the cone complementarity linearization algorithm and linear matrix inequalities （LMIs）. Numerical example shows the effectiveness and feasibility of the proposed condition and controllers design procedure.

关 键 词：自动控制技术 网络化控制系统 时钟驱动 状态预估 锥补线性化 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]