引用本文:郑毓蕃,谢立华, 张慈深.用Lyapunov 函数集分析非线性系统的稳定性*[J].控制理论与应用,1999,16(S1):87~92.[点击复制]
Zheng Yufan,Xie Lihua, Zhang Cishen.Stability Analysis of Nonlinear Systems by Lyapunov Function Set[J].Control Theory and Technology,1999,16(S1):87~92.[点击复制]
用Lyapunov 函数集分析非线性系统的稳定性*
Stability Analysis of Nonlinear Systems by Lyapunov Function Set
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DOI编号  
  1999,16(S1):87-92
中文关键词  非线性控制系统  Lyapunov函数  状态反馈系统  渐近稳定
英文关键词  nonlinear control system  Lyapunov function  state feedback control, Asymptotically stability
基金项目  
作者单位
郑毓蕃,谢立华, 张慈深 华东师范大学系统科学研究所 
中文摘要
      本文将Lyapunov函数的概念推广到Lyapunov 函数集.对一点非线性系统,一类二次型正定函数集{Vi(x)i {1,2,… }}称为Lyapunov 函数集,若对系统的任一状态x,都存在该状态的一个领域Ux以及该正定函数集中一个正定函数Vj(x),满足Vj(x)<O x Ux.本文证明以下命题:对一个自治系统,如存在该类Lyapunov函数集,这个自治系统是渐近稳定的.
英文摘要
      The notion of Lyapunov function is generalized into Lyapunov function set.For a nonlinear system a set of quadratic positive definite functions{Vi(x)i {1,2,… }}is called Lyapunov function set if for each state x there exist a neighborhood Ux of x and a function Vj(x)of the set such that Vj(x)<O x Ux.It is shown that for a nonlinear system if there exists a Lyapunov function set,then the system is asymptotically stable.