东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2008, Vol. 29 ›› Issue (10): 1393-1397.DOI: -

• 论著 • 上一篇    下一篇

具有丢包的长时延NCS的稳定性分析

邢伟;王加房;王国良;   

  1. 东北大学理学院;
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2008-10-15 发布日期:2013-06-22
  • 通讯作者: Xing, W.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(60574011)

Stability analysis of networked control system with long-time delay and data packet dropout

Xing, Wei (1); Wang, Jia-Fang (1); Wang, Guo-Liang (1)   

  1. (1) School of Sciences, Northeastern University, Shenyang 110004, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2008-10-15 Published:2013-06-22
  • Contact: Xing, W.
  • About author:-
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摘要： 研究了同时具有大于采样周期和小于采样周期的随机传输时延及数据包丢失的网络控制系统的稳定性问题.对网络控制系统进行了详细的分析,建立了网络控制系统的模型.当网络中存在数据包丢失时,对于给定的数据包丢失率,网络控制系统被建模为异步动态系统.利用异步动态系统理论给出了网络控制系统指数稳定的充分条件,动态反馈控制器可通过解一组矩阵不等式得出.仿真示例验证了所提出方法的有效性.

关键词: 长时延, 丢包, 线性矩阵不等式, 网络控制系统, 稳定性

Abstract: The stability of an NCS (networked control system) is studied, to which the stochastic transmission delay longer or shorter than a sampling period and the data packet dropout both come to pass simultaneously. The system is analyzed in detail so as to develop a model where the rate of data packet dropout is given and therefore the system modeled is regarded as an asynchronous dynamical system. Then, the sufficient condition for the exponential stability of the NCS is given on the basis of the theory of asynchronous dynamical system, with the dynamical feedback controller also given by solving a set of linear matrix inequalities. The numerical simulation results revealed the effectiveness of the proposed method.

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