摘要
针对存在固定时滞和外部扰动的网络控制系统,建立了其传感器部分失效的控制输入数学模型。为了降低对于网络传输的要求,采用状态增广以克服时滞对网络控制系统分析的影响。通过构造适当的Lyapunov函数,并运用H∞控制理论和线性矩阵不等式方法(LMI),导出了网络控制系统H∞容错控制器存在的条件及具体方法。最后通过一个仿真算例证明了方法的可行性和有效性。
To a class of Networked Control System（NCS） with fixed network-induced delays and control input constraints,a control input model under partial sensor failure was established.In order to reduce the communication burden of the network,the system was augmented to eliminate the effect caused by network-induced delays.By establishing a proper Lyapunov function and applying H∞ control theory and linear matrix inequality（LMI） techniques,the sufficient condition for NCS with robust H∞ fault-tolerant controller and the design approach of the controller were obtained.Finally,a simulation example was used to illustrate the effectiveness and the feasibility of proposed approach.
出处
《电光与控制》
北大核心
2012年第11期58-61,共4页
Electronics Optics & Control
基金
湖南省高等学校科学研究项目(10C0035)
湖南省科技计划课题(2011GK3178)
关键词
网络控制系统
传感器
部分失效
H∞容错控制
networked control system
sensor
partial failure
robust H∞ fault-tolerant control
