Journal
INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE
Volume 48, Issue 10, Pages 2079-2090Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00207721.2017.1310950
Keywords
Singular networked cascade control systems; L-2-L-infinity performance; sampled-data approach; fault-tolerant controller
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Funding
- Samsung Research Fund, Sungkyunkwan University
- National Research Foundation of Korea [21A20131600002, 21A20131400002] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This paper investigates the reliable sampled-dataL2 -L8 control problem for a class of singular networked cascade control systems with randomly occurring actuator failures, time-varying delay and disturbances. In particular, the randomly occurring actuator failures describes the phenomenon of the actuator failure appearing in a random way and is modelled by a Bernoulli distributed white noise sequences with a known conditional probability. The main purpose of this work is to design a reliable sampled-data controller such that an optimised upper bound of the predefined performance index is well guaranteed for the systems under consideration even in the presence of both the randomly occurring actuator failures and disturbances. The resulting controllers are reliable in the sense that they will provide guaranteed stochastically admissible and L2 -L8 performance index when all actuators are operational as well as when some actuators experiences failure. Finally, two numerical examples are given to exhibit the effectiveness of the proposed control scheme.
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