Unified dwell time-based stability and stabilization criteria for switched linear stochastic systems and their application to intermittent control

被引:36
作者
Luo, Shixian [1 ]
Deng, Feiqi [1 ]
Chen, Wu-Hua [2 ]
机构
[1] South China Univ Technol, Sch Automat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China
[2] Guangxi Univ, Coll Math & Informat Sci, Nanning, Peoples R China
基金
中国国家自然科学基金;
关键词
intermittent control; mode-dependent dwell time; stability; switched stochastic systems; time-varying discretized Lyapunov function; H-INFINITY CONTROL; DELAY SYSTEMS; NONLINEAR-SYSTEMS; EXPONENTIAL STABILITY; NEURAL-NETWORKS; VARYING DELAY; MINIMUM;
D O I
10.1002/rnc.3997
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper considers the stability and stabilization problems for the switched linear stochastic systems under dwell time constraints, where the considered systems can be composed of an arbitrary combination of stable and unstable subsystems. First, a time-varying discretized Lyapunov function is constructed based on the projection of a linear Lagrange interpolant and a switching-time-dependent "weighted" function. The "weighted" function not only enforces the Lyapunov function to decrease at switching instants but also coordinates the dynamical behavior of the subsystems. As a result, some unified criteria for mean square stability and almost sure stability of the switched stochastic systems are established in terms of linear matrix inequalities. Based on the obtained stochastic stability criteria, 2 types of state feedback controllers for the systems are designed. Moreover, the novel results are applied to solve the intermittent control or the controller failure problems. Finally, conservatism analysis and numerical examples are provided to illustrate the effectiveness of the established theoretical results.
引用
收藏
页码:2014 / 2030
页数:17
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