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Active disturbance rejection control for discrete systems with zero dynamics
Author(s) -
Wang Haiyan,
Pan Tianhong,
SiraRamirez Hebertt,
Gao Zhiqiang
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.5544
Subject(s) - control theory (sociology) , robustness (evolution) , disturbance (geology) , zero (linguistics) , active disturbance rejection control , internal model , scheme (mathematics) , computer science , system dynamics , mathematics , control (management) , nonlinear system , physics , artificial intelligence , state observer , mathematical analysis , paleontology , biochemistry , chemistry , linguistics , philosophy , quantum mechanics , biology , gene
In this paper, a discrete active disturbance rejection control (DADRC) scheme is proposed to manipulate linear input–output systems with zero dynamics. The DADRC is formulated according to the relative degree of the system output and is designed to track a reference and cancel both internal uncertainties and external disturbances. A parameter tuning method is also presented based on a part of the model information. The robustness and effectiveness of the designed scheme are demonstrated via numerical simulations.