关键词: 自动控制技术, 网络控制系统, H2/H∞混合控制, 传输时延, 马尔可夫跳跃线性系统

Abstract: A new model of the NCSs with long timedelay was proposed using buffering method, the uncertain long time delay can be converted to switch in some certain time delays, thus decrease the delay increasement. According to the theory of discretetime Markov jump linear system, mixed H2/H∞ control problem for networked control systems (NCSs) with long timedelay was proposed and the robust mean square stable controller can be obtained based on LMI approach. The designed robust controller by using this proposed method proved to be simple and easy to realize. These results were applied to a threetank system and the simulations demonstrate the effectiveness and superiority of the method.

Key words: automatic control technology, networked control systems, mixed H2/H∞ control, transmission timedelay, Markov jump linear system