改进的时延丢包网络控制系统的分析和控制  

Improved analysis and control for networked control systems with net-work-induced delay and data dropout

作　　者：屈百达 陈龙 徐保国 

机构地区：[1]江南大学轻工过程先进控制教育部重点实验室,江苏无锡214122

出　　处：《计算机工程与应用》2014年第22期130-135,共6页Computer Engineering and Applications

基　　金：国家自然科学基金(No.30971689);高等学校学科创新引智计划资助(No.B12018);江苏省产学研联合创新资金项目(No.120767)

摘　　要：将网络控制系统建模为时变时滞系统模型,考虑有界、时变时延和丢包的网络控制系统的稳定性分析和控制器设计问题。首先构造一个新的分段Lyapunov-Krasovskii泛函,充分利用时延上下界信息,然后结合更紧的有限和不等式处理时滞区间,得到具有较小保守性的稳定性准则,基于一种改进的锥补线性化迭代算法给出状态反馈器设计方法,证明中没有引进模型变换和自由矩阵,减少了计算上的复杂性。通过实例表明上述方法的有效性。This paper is concerned with the problem of the stability analysis and controller design for networked control systems（NCSs）with bounded, time-varying network delays and data dropout by modeling the time-varying delay systems. Construct a new Lyapunov-Krasovskii functional and make full use of the information on the upper and lower bounds of the delay. A tighter finite sum inequality is presented to deal with delay interval. A less conservative stability criteria is derived. The state feedback controller design is obtained with an improved cone complementarity linearization algorithm. Since neither model transformation nor free-weighting matrices is employed in the derivation of these results, the proposed approach will reduce calculation. Numerical examples are given to illustract the effectiveness of the proposed method.

关 键 词：网络控制系统 有限和不等式 线性矩阵不等式 锥补线性化迭代算法 NETWORKED Control Systems(NCSs) Linear MATRIX Inequality(LMI) 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]