基于数据包丢失的NBFI系统稳定性分析  

Stability Analysis of NBFIs with Packet Dropout

作　　者：王小平[1] 孙洪飞[1] 

机构地区：[1]厦门大学自动化系,福建厦门361005

出　　处：《自动化技术与应用》2008年第5期67-72,共6页Techniques of Automation and Applications

基　　金：福建省自然科学基金(A0510002);厦门大学985二期信息创新平台项目资助

摘　　要：NBFI(networked-based feedback interconnection)是一种新型的基于网络反馈连接的控制系统模型。本文在考虑数据包丢失的基础上,研究了NBFI系统的指数稳定性问题。基于一定的数据包丢失率,将系统建模为结构事件率约束的异步动态系统。采用Lyapunov方法和线性矩阵不等式进行描述,推导出网络接通率约束的系统指数稳定的充分条件。最后,Matlab仿真验证了结论的有效性。NBFI is a new kind of network-based feedback model. On consideration of data packet dropout, the exponential stability of NBFI is studied. Based on a fixed rate of data packet dropout, the system is modeled as an asynchronous dynamical system constrained by rates of configuration events. By using the linear matrix inequality method and Lyapunov theory, sufficient conditions for exponential stability of the system are derived. Finally, Matlab simulation shows that the results are valid and feasible.

关 键 词：网络控制系统 NBFI 异步动态系统 线性矩阵不等式 结构事件率 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]