关键词: 自动控制技术 , 网络控制系统 , 时变时延 , 渐近稳定

Abstract: To deal with the problems of dropout and disorder of data packets in the transform process, the networked control system with long delay, wmch contains the event-driven controller and time- driven sensor and actuator, is modeled as a discrete linear system with time-varying control delay. Based on this model, the effect of time delay on the performance of closed loop system is analyzed. By using Lyapunov method, the delay dependent stability condition is given, subject to the asymptotic stability. And the solution to obtain the maximum delay, with which the closed loop system remains stability, is achieved by the aid oi linear matrix inequality( LMI) . t mally, an example is given to vali-date the effectiveness of the methods presented in this paper.

Key words: automatic controlling technique , networked control system , time-vary delay system , asymptotic stability