Journal of Systems Engineering and Electronics ›› 2012, Vol. 34 ›› Issue (2): 342-347.doi: 10.3969/j.issn.1001-506X.2012.02.24

• 制导、导航与控制 • 上一篇    下一篇

考虑时延与丢包的网络控制系统分析与综合

陈刚1,2,阳春华1,朱红求1   

  1. 1. 中南大学信息科学与工程学院, 湖南 长沙 410083;
    2. 湖南工业大学电气与信息工程学院, 湖南 株洲 412008
  • 出版日期:2012-02-15 发布日期:2010-01-03

Analysis and synthesis for networked control systems with network-induced delay and data dropout problems

CHEN Gang 1, 2, YANG Chunhua 1, ZHU Hongqiu 1   

  1. 1. School of Information Science and Engineering, Central South University, Changsha 410083, China;
    2. School of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412008, China
  • Online:2012-02-15 Published:2010-01-03

摘要:

针对具有时变网络诱导时延和丢包问题的网络控制系统稳定性分析与控制器设计问题,通过考虑网络诱导时延是时变和有界的情形,并分析网络诱导时延与其上界之间的关系,应用Lyapunov-Krasovskii泛函结合积分不等式方法,提出了一种改进的、同时考虑了网络诱导时延和丢包问题的网络控制系统稳定条件,并基于改进的锥补线性化迭代算法(improved cone complementary linearization, ICCL)给出了一种具有更低保守性的控制器设计方法。数值实例表明上述方法的有效性。

Abstract:

This paper investigates the problems of the stability analysis and controller design for networked control systems (NCSs), in which the network-induced delays and data dropout problems are simultaneously considered. By considering that the network-induced delays are assumed to be time-varying and bounded, and analyzing the relationship between the delay and its upper bound, employing a LyapunovKrasovskii functional and an integral inequality approach, an improved stability criterion for NCSs is proposed. Furthermore, the resulting condition is extended to design a less conservative state feedback controller by employing an improved cone complementary linearization (ICCL) algorithm. Numerical examples are provided to show the effectiveness of the method.