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On the stochastic finite-time stability for switched stochastic nonlinear systems
Authors:Wei Hu  Quanxin Zhu
Affiliation:1. School of Mathematics and Physics, Jiangsu University of Technology, Changzhou, Jiangsu, China

MOE-LCSM, School of Mathematics and Statistics, Hunan Normal University, Changsha, Hunan, China;2. MOE-LCSM, School of Mathematics and Statistics, Hunan Normal University, Changsha, Hunan, China

Abstract:In this paper, the stochastic finite-time stability (SFTS) criteria for switched stochastic nonlinear systems (SSNS) with nonlocal Lipschitz coefficients are established. The main tools that we used here are mode-dependent limiting average dwell time (MD-LADT), stopping time technology and the stochastic analysis theory. The established criteria show that the diffusion coefficient, the drift coefficient and the switching law play crucial roles in obtaining the SFTS for the SSNS. Besides, our criteria provide some approaches on how to design the switching law to achieve the SFTS if a switched stochastic system contains SFTS subsystems and stochastic finite-time instable (SFTI) subsystems simultaneously. Finally, an example is given to illustrate the importance and usefulness of the theoretical results.
Keywords:mode-dependent limiting average dwell time  stochastic finite-time stability  stochastic nonlinear system  stopping time  switching
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