一类多包传输网络控制系统的H_∞鲁棒控制  

H-infinity control for a class of networked control systems with multiple packet transmission

作　　者：谢成祥[1,2] 胡维礼[2] 

机构地区：[1]江苏科技大学电子与信息学院,江苏镇江212003 [2]南京理工大学自动化学院,江苏南京210094

出　　处：《控制理论与应用》2010年第2期216-220,共5页Control Theory & Applications

基　　金：国家自然科学基金资助项目(60575051)

摘　　要：研究了一类不确定时延多包传输网络控制系统的最优H∞控制问题.针对传感器时钟驱动、控制器和执行器事件驱动的多包传输网络控制系统,考虑不大于一个采样周期的不确定时延和有限能量的外部扰动,提出一种基于模型的反馈控制策略,利用Lyapunov理论推导了H∞控制律存在的充分条件,通过求解矩阵不等式约束的优化问题得到最优H∞控制律.数值仿真表明了所用方法的有效性.The optimal H-infinity control problem for a class of networked control systems （NCS） with multiple packet transmission is studied. For networked control systems with clock-driven sensors and event-driven controllers and actuators, when the time-delay is uncertain and less than one sampling period and the external disturbance is limited, the model- based control scheme is proposed, and the sufficient condition of the existence of H-infinity control law is derived by using Lyapunov theory. The optimal H-infinity controller law is obtained through solving a convex optimization problem constrained by matrix inequalities. A numerical simulation example shows the validity of the proposed method.

关 键 词：网络控制系统 多包传输 最优H∞控制 矩阵不等式 H∞扰动抑制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]