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Event‐driven disturbance rejection control for discrete time‐varying systems
Author(s) -
Zhang Jinhui,
Yin Jianfang,
Xu Hao,
Sun Zhongqi
Publication year - 2021
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.5558
Subject(s) - control theory (sociology) , disturbance (geology) , computer science , discrete time and continuous time , control (management) , scheme (mathematics) , observer (physics) , function (biology) , state observer , intermittent control , event (particle physics) , upper and lower bounds , state (computer science) , control engineering , mathematics , engineering , algorithm , nonlinear system , artificial intelligence , paleontology , mathematical analysis , statistics , physics , quantum mechanics , evolutionary biology , biology
In this article, the problem of event‐driven output feedback control is addressed for discrete time‐varying systems with external disturbances. To estimate the unmeasured system states and external disturbances, a novel time‐varying extended state functional observer is designed. Then, an event‐driven control scheme is proposed to reduce the utilization of the communication resources, and the optimal feedback gain is designed by minimizing the upper bound of the cost function. Moreover, the disturbance rejection analyses are performed. Finally, the effectiveness of the proposed control approaches is illustrated through the numerical simulations.