Output feedback control of networked systems with a stochastic communication protocol
Output feedback control of networked systems with a stochastic communication protocol
复制标题
具有随机通信协议的网络系统的输出反馈控制
DOI：
10.1016/j.jfranklin.2016.02.009
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Tian Yu-Chu
中科院分区：
文献类型：
--
作者：
Zhang Jin;Peng Chen;Fei Min-Rui;Tian Yu-Chu
研究了一类具有随机通信协议的网络控制系统的输出反馈控制问题。在每个传输时刻只允许一个传感器获得通信接入的情况下，首先定义了一个随机通信协议，其中通信接入由具有部分未知转移概率的离散时间马尔可夫链建模.其次，采用基于网络的输出反馈控制策略和时滞分割方法，将闭环系统建模为具有多个时变时滞的随机系统，充分考虑了网络时滞的固有特性，提高了控制性能。然后，基于上述构造的随机模型，推导出两个充分条件，确保所考虑的系统的均方稳定性和镇定。最后通过两个算例验证了该方法的有效性。
This paper addresses an output feedback control problem for a class of networked control systems (NCSs) with a stochastic communication protocol. Under the scenario that only one sensor is allowed to obtain the communication access at each transmission instant, a stochastic communication protocol is first defined, where the communication access is modeled by a discrete-time Markov chain with partly unknown transition probabilities. Secondly, by use of a network-based output feedback control strategy and a time-delay division method, the closed-loop system is modeled as a stochastic system with multi-time-varying delays, where the inherent characteristic of the network delay is well considered to improve the control performance. Then, based on the above constructed stochastic model, two sufficient conditions are derived for ensuring the mean-square stability and stabilization of the system under consideration. Finally, two examples are given to show the effectiveness of the proposed method.