Active disturbance rejection control for discrete systems with zero dynamics

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 uncertai...

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Bibliographic Details
Published in:International journal of robust and nonlinear control 2021-07, Vol.31 (11), p.5298-5311
Main Authors: Wang, Haiyan, Pan, Tianhong, Sira‐Ramirez, Hebertt, Gao, Zhiqiang
Format: Article
Language:English
Subjects:
Active control
active disturbance rejection control
Discrete systems
Mathematical models
nonminimum phase systems
Rejection
relative degree
Robustness (mathematics)
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Summary: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.
ISSN:1049-8923
1099-1239
DOI:10.1002/rnc.5544