摘要
针对网络化控制系统中存在网络诱导时延和控制器参数摄动,研究网络化控制系统的非脆弱H_∞控制问题。首先采用Lyapunov稳定性理论和线性矩阵不等式方法,得到闭环控制系统H_∞渐近稳定的充分条件,然后通过求解线性矩阵不等式得到控制器增益的参数表达式。仿真结果表明,该非脆弱控制器不仅能使被控系统稳定且满足设定的H_∞性能指标。
The non-fragile H∞ control problem is studied for networked control systems with time delays and parameter uncertainties. By using the Lyapunov stability theory and linear matrix inequality techniques, a sufficient condition for the existence of the non-fragile controller is derived, and the controller gain can be obtained by solving the linear matrix inequality. The designed non-fragile H∞ controller can guarantee the stability and the predefined H∞ performance index in spite of the existence of the network-induced delays and the gain uncertainties. Finally, simulation results demonstrate the effectiveness of the proposed design method.
出处
《控制工程》
CSCD
北大核心
2017年第4期747-751,共5页
Control Engineering of China
基金
国家自然科学基金资助项目(61273131)
关键词
网络化控制系统
时延
非脆弱控制
线性矩阵不等式
Networked control system
time delay
non-fragile control
linear matrix inequality
