多变量网络控制系统鲁棒容错控制研究

Research on Fault-tolerant Control Methodology for Multi-variable NCSs

文章研究了一类具有时延和丢包且执行器故障的多变量网络控制系统鲁棒容错控制器设计问题,基于系统中的不确定性,推导了该类网络控制系统的诱导时滞数学模型,并利用李雅普诺夫第二法和自由权矩阵方法,分析了系统的渐近稳定性,得到了系统稳定运行的最大允许时延的条件。最后,通过仿真分析证实了本文所提理论的有效性,以及稳定判据的可行性。

The issue of fault-tolerant control for uncertain continuous-time multi-variable networked control systems with actuators failure is researched,where its network transmission is connected with network-induced delay and packet dropout.The complete mathematical model is derived.And the sufficient condition for asymptotical stability is analyzed and the maximum allowable delay conditions for systems are derived by using Lyapunov stability theory combined with free-weighting matrices techniques.The efficacy and feasibility of the proposed methods is shown by presenting simulation results from multi-variable networked control example with uncertainty.