Observer-based H∞ Control for Industrial Ethernet Control Systems with Time Delay and Packet Dropout
Ethernet is finding increasing application in industrial environments as a replacement for conventional fieldbus systems. The key technical obstacle of Ethernet for industrial application is that its non-deterministic behavior makes it inadequate for real-time application. In order to solve these problems, this paper investigates the observer-based Hoo control problem of networked control systems with time delay and packet dropout The random packet loss is modeled as a Bernoulli distributed white sequence with a known conditional probability distribution. In the presence of random packet dropout, sufficient conditions for the existence of an observer-based feedback controller are derived for the NCSs asymptotic stability based on robust stability techniques, under which the system is exponential stability with a desired Hinfinity disturbance attenuation level. The designed observer-based H°o controller is obtained by solving a set of linear matrix inequalities. The result illustrate that the effectiveness of the proposed control design and the satisfactory performance of the system.
Networked Control Systems (NCSs) Observer-based feedback control Packet dropout H∞ Control
Lizhen Wu Xiaohong Hao Qiaoling Yang
College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050 College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050
国际会议
南昌
英文
130-133
2012-08-26（万方平台首次上网日期，不代表论文的发表时间）