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Output tracking with disturbance attenuation for cascade control systems subject to network constraint
Author(s) -
Ma Dan,
Li Zhuoyu,
Zhao Rubing
Publication year - 2020
Publication title -
asian journal of control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 53
eISSN - 1934-6093
pISSN - 1561-8625
DOI - 10.1002/asjc.2048
Subject(s) - cascade , control theory (sociology) , attenuation , constraint (computer aided design) , controller (irrigation) , disturbance (geology) , tracking (education) , computer science , control engineering , control system , control (management) , transmission (telecommunications) , engineering , telecommunications , artificial intelligence , paleontology , agronomy , pedagogy , physics , electrical engineering , optics , biology , mechanical engineering , psychology , chemical engineering
In this paper, we investigate the output tracking control and disturbance attenuation for a class of cascade control systems subject to network‐induced delays. In order to indicate the time‐varying characteristics and uncertainty of network‐induced delays, a switched system approach is applied to the cascade architecture. This leads to the simultaneous design of controllers and switching signals in terms of the network transmission. Unlike the traditional cascade control design approach, which needs to first tune the secondary controller and then the primary one, we can provide a simultaneous design method of the double‐loop controllers and switching signals to make the networked cascade control system achieve the output tracking performance with disturbance attenuation. Finally, two examples are proposed to demonstrate the feasibility and the effectiveness of the approach.