New Results on Finite-time Stabilization for Stochastic Systems with Time-varying Delay

作者:Zhang, Lihua; Qi, Wenhai*; Kao, Yonggui; Gao, Xianwen; Zhao, Longjiang
来源:International Journal of Control Automation and Systems, 2018, 16(2): 649-658.
DOI:10.1007/s12555-017-0020-7

摘要

The paper deals with the problem of finite-time stabilization for stochastic systems with time-varying delay by defining a new criterion for finite-time stability. Firstly, by use of more appropriate Lyapunov-Krasovskii functional (LKF), the difficulties of finite-time stability confronted in system analysis and synthesis can be overcome. Then, a state feedback controller is constructed to guarantee the closed-loop system finite-time stable. New conditions for finite-time stability analysis as well as controller synthesis are established in terms of linear matrix inequality (LMI). Finally, two practical examples demonstrate the validity of the main results.