Acta mathematica scientia,Series A ›› 2023, Vol. 43 ›› Issue (2): 549-562.

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Sliding Mode Control for Time-Varying Delay Systems with Semi-Markov Jump

Fu Qinhong(),Xiong Lianglin(),Zhang Haiyang,Qin Ya,Quan Shenai   

  1. School of Mathematics and Computer Science, Yunnan Minzu University, Kunming 650500
  • Received:2022-01-29 Revised:2022-10-17 Online:2023-04-26 Published:2023-04-17
  • Supported by:
    NSFC(12061088)

Abstract:

This paper studies the sliding mode controller design problem for uncertain continuous time-varying delay systems with the semi-Markov jump. Firstly, by studying the dynamic characteristics of the system, combined with the sliding mode surface, a singular system is established to describe the holonomic dynamics of the sliding mode. Then, building an appropriate Lyapunov functional by taking into account more information about time delay, a sufficient condition that guarantees the existence of sliding mode surface and the stochastic stability of sliding mode dynamics is given. Based on this, a sliding mode controller is designed to make the closed-loop system finally converge to the sliding mode surface. Finally, a numerical example is given to show the effectiveness of the developed approach.

Key words: Semi-Markov jump, Sliding mode control, Singular system approach, Time-varying delay systems, Stochastic stability

CLC Number: 

  • O193
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