Decentralized variable structure control for mismatched uncertain large-scale systems: a new approach

In this paper, a decentralized variable structure controller for a class of large-scale systems with mismatched uncertainties is proposed. In every subsystem, two sets of switching surfaces is introduced. New invariance conditions are derived such that the system in the new sliding mode is completel...

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Bibliographic Details
Published inSystems & control letters Vol. 43; no. 2; pp. 117 - 125
Main Authors Tsai, Yao-Wen, Shyu, Kuo-Kai, Chang, Kuang-Chiung
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 2001
Elsevier
Subjects
Applied sciences
Computer science; control theory; systems
Control system synthesis
Control theory. Systems
Exact sciences and technology
Invariance condition
Mismatched uncertainty
Sliding mode
System theory
Variable structure systems
Variable structure systems
Sliding mode
Mismatched uncertainty
Invariance condition
Invariant
Uncertainty
Stability
Variable structure control
Variable structure system
Large scale structure
Substructure
Mismatching
Uncertain system
Decentralized control
Subsystem
System analysis
Turbulence structure
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Summary:In this paper, a decentralized variable structure controller for a class of large-scale systems with mismatched uncertainties is proposed. In every subsystem, two sets of switching surfaces is introduced. New invariance conditions are derived such that the system in the new sliding mode is completely invariant to both matched and mismatched uncertainties. To demonstrate the effectiveness of the proposed scheme, a decentralized variable structure controller is synthesized to perform the new sliding mode. Moreover, the stability analysis of the overall system is also provided.
ISSN:0167-6911
1872-7956
DOI:10.1016/S0167-6911(01)00081-0