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

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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

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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.

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