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Feedback passification of switched stochastic time‐delay systems with multiple disturbances via DOBC
Author(s) -
Ma Lianfang,
Sun Haibin,
Zong Guangdeng
Publication year - 2019
Publication title -
international journal of robust and nonlinear control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.361
H-Index - 106
eISSN - 1099-1239
pISSN - 1049-8923
DOI - 10.1002/rnc.4844
Subject(s) - control theory (sociology) , dwell time , passivity , observer (physics) , computer science , bounded function , state vector , controller (irrigation) , full state feedback , mathematics , control (management) , engineering , medicine , clinical psychology , mathematical analysis , agronomy , physics , classical mechanics , quantum mechanics , artificial intelligence , electrical engineering , biology
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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