一类基于模型的时延网络控制系统的稳定性分析

针对连续、线性被控对象状态无法直接测量得到的情况，设计了状态观测器，在网络传输信号的时间间隔内，依据被控对象模型计算控制信号，以减少网络的使用率．在此基础上，给出了一类基于模型的时延网络控制系统全局指数稳定的充要条件，该条件受网络信号更新时间、被控对象模型误差及网络诱导时延等因素的影响．仿真结果表明了该稳定性条件的正确性．

Stability Analysis on a Class of Model-based Networked Control Systems with Delays

A state observer is designed for the case that the state of continuous linear plants can't be measured directly.Computing control signal based on plant model at intervals of signal transmission through network is addressed to reduce the usage of the network.Furthermore,necessary and sufficient conditions of global exponential stability are derived for a model-based NCS with delays.These conditions are affected by the network signal update time,the plant model error and network-induced delay.Simulation result illustrates the effectiveness of the stability conditions.