摘要
研究了一类存在时变时延和丢包的网络控制系统(networked control systems,NCS)的H∞优化控制问题。当网络时延和连续丢包有界时,NCS被建模为等效的具有时变时滞的系统,利用Lvapunov-Krasovskii泛函和线性矩阵不等式方法,在NCS渐近稳定的基础上给出NCS状态反馈次优和最优H∞控制律的设计方法,求解时不需要使用重复迭代,设计控制器时也无须知道调节参数。仿真表明了此方法的可行性和有效性。
The problem of H∞ optimal control is studied for a class of networked control systems with time-varying network-induced delay and data packet dropout.Given the bound of data packet losses and network-induced delay,the NCS is modeled as an equivalent system with time-varying delay.By using the Lyapunov-Krasovskii functional and linear matrix inequality,state-feedback suboptimum and optimum H∞ control laws of NCS are designed based on asymptotical stability.The design of the controller requires neither iterative operation nor the knowledge of tuning parameters.Simulation results verify the validity and feasibility of the method.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2010年第7期1501-1505,共5页
Systems Engineering and Electronics
关键词
网络控制系统
时变时延
丢包
时滞系统
H∞控制
networked control systems
time-varying delay
data packet dropout
time-delay system
H∞ control
