Volume 30, Issue 4 pp. 1696-1718
RESEARCH ARTICLE

Feedback passification of switched stochastic time-delay systems with multiple disturbances via DOBC

Lianfang Ma

Lianfang Ma

School of Engineering, Qufu Normal University, Rizhao, China

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Haibin Sun

Corresponding Author

Haibin Sun

School of Engineering, Qufu Normal University, Rizhao, China

Haibin Sun, School of Engineering, Qufu Normal University, Rizhao 276826, China.

Email: [email protected]

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Guangdeng Zong

Guangdeng Zong

School of Engineering, Qufu Normal University, Rizhao, China

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First published: 19 December 2019
Citations: 8

Summary

This paper is concerned with the problem of feedback passification for switched stochastic time-delay systems with multiple disturbances subject to mode-dependent average dwell-time switching. The multiple disturbances are composed of two parts: one is given through an exogenous system and the other is described in the form of norm-bounded vector. A disturbance observer is constructed to estimate an exogenous disturbance. Then, a state feedback controller that includes the estimation value is designed to guarantee the passivity of the closed-loop system. The observer and controller gains are developed via linear matrix inequalities. The effectiveness of the proposed method is verified through a numerical example and an application example to PWM-driven boost converter.

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