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Robust ℋ︁ ∞ PID control for multivariable networked control systems with disturbance/noise attenuation
Author(s) -
Zhang Hui,
Shi Yang,
Mehr Aryan Saadat
Publication year - 2011
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.1688
Subject(s) - pid controller , control theory (sociology) , multivariable calculus , control engineering , noise (video) , robust control , computer science , control system , robustness (evolution) , control (management) , attenuation , engineering , temperature control , artificial intelligence , biochemistry , chemistry , physics , electrical engineering , optics , image (mathematics) , gene
In this paper, we study the design problem of PID controllers for networked control systems (NCSs) with polyhedral uncertainties. The load disturbance and measurement noise are both taken into account in the modeling to better reflect the practical scenario. By using a novel technique, the design problem of PID controllers is converted into a design problem of output feedback controllers. Our goal of this paper is two‐fold: (1) To design the robust PID tracking controllers for practical models; (2) To develop the robust ℋ ∞ PID control such that load and reference disturbances can be attenuated with a prescribed level. Sufficient conditions are derived by employing advanced techniques for achieving delay dependence. The proposed controller can be readily designed based on iterative suboptimal algorithms. Finally, four examples are presented to show the effectiveness of the proposed methods. Copyright © 2011 John Wiley & Sons, Ltd.