Journal of Northeastern University ›› 2012, Vol. 33 ›› Issue (8): 1084-1087+1092.DOI: -

• OriginalPaper • Previous Articles     Next Articles

Controller design for networked control systems considering packet dropouts and non-uniformly distributed delays

Wang, Tian-Bao (1); Wu, Cheng-Dong (1); Zhang, Yun-Zhou (1); Ji, Peng (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Wang, T.-B.
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Abstract: Stabilizing controller design was discussed for discrete-time networked control systems (NCSs) considering packet dropouts and non-uniformly distributed delays. According to the influence of packet dropouts and network-induced delays separately on system performance and taking account of the non-uniform distribution of the delays, a new model for a discrete-time NCS was established. Then, a new Lyapunov functional was constructed, based on which a stabilizing controller was designed by combining with the linear matrix inequalities (LMIs). And the performance of the considered system was optimized. For dividing the non-uniformly distributed delays, a new algorithm was presented to choose a proper dividing point instead of a midpoint used as a demarcation point in the existing methods. A numerical example illustrates the effectiveness of the proposed stabilizing controller design.

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