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Output feedback control of discrete‐time systems with self‐triggered controllers
Author(s) -
Zhang Jinhui,
Zhao Danyang,
Zheng Wei Xing
Publication year - 2015
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.3288
Subject(s) - control theory (sociology) , observer (physics) , computer science , discrete time and continuous time , instant , controller (irrigation) , state (computer science) , control (management) , output feedback , mathematics , algorithm , statistics , physics , quantum mechanics , artificial intelligence , agronomy , biology
Summary This paper is concerned with the self‐triggered output feedback control for discrete‐time systems, where an updating instants scheduler is implemented to determine when the controller is updated. For both the full‐order and reduced‐order observer cases, the updating instants are determined, respectively, where only the information of the estimated state at the current updating instant is required to obtain the next updating instant. It is shown that, with the proposed self‐triggered control schemes, not only the updating frequency is significantly reduced, but also the uniform ultimate boundedness of the closed‐loop system is guaranteed. Finally, a numerical example is used to verify the effectiveness and the merits of the proposed approaches. Copyright © 2014 John Wiley & Sons, Ltd.