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Event-Triggered Adaptive Control of Saturated Nonlinear Systems with Time-Varying Partial State Constraints
Wang,Lijie1; Chen,C. L.Philip1,2,3; Li,Hongyi4,5
Source PublicationIEEE Transactions on Cybernetics
ABS Journal Level3

This paper investigates the problem of event-triggered adaptive control for a class of nonlinear systems subject to asymmetric input saturation and time-varying partial state constraints. To facilitate analyzing the influence of asymmetric input saturation, the saturation function is converted into a linear form with respect to control input. To achieve the objective that partial states do not exceed the constraints, a more general form of Lyapunov function is offered. Different from some existing results about output/full state constraints, the proposed scheme only requires that the partial states satisfy the time-varying constraints. Moreover, an event-triggered scheme with a varying threshold is designed to reduce the communication burden. With the time-varying asymmetric barrier Lyapunov functions, a novel event-triggered control scheme is developed, which ensures that partial states are without violation of required constraints and the tracking error converges to a small neighborhood of the origin despite appearing as saturated phenomenon. Eventually, the theoretic results are confirmed by two examples.

KeywordAsymmetric Event-triggered Adaptive Control Input Saturation Partial State Constraints
URLView the original
Indexed BySCIE
WOS Research AreaAutomation & Control Systems ; Computer Science
WOS SubjectAutomation & Control Systems ; Computer Science, Artificial Intelligence ; Computer Science, Cybernetics
WOS IDWOS:000519727800012
Scopus ID2-s2.0-85054256387
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Cited Times [WOS]:107   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorChen,C. L.Philip
Affiliation1.Department of Computer and Information Science,Faculty of Science and Technology,University of Macau,999078,Macao
2.College of Navigation,Dalian Maritime University,Dalian,116026,China
3.State Key Laboratory of Management and Control for Complex Systems,Institute of Automation,Chinese Academy of Sciences,Beijing,100080,China
4.School of Automation,Guangdong University of Technology,Guangzhou,510006,China
5.College of Engineering,Bohai University,Jinzhou,121013,China
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Wang,Lijie,Chen,C. L.Philip,Li,Hongyi. Event-Triggered Adaptive Control of Saturated Nonlinear Systems with Time-Varying Partial State Constraints[J]. IEEE Transactions on Cybernetics,2020,50(4):1485-1497.
APA Wang,Lijie,Chen,C. L.Philip,&Li,Hongyi.(2020).Event-Triggered Adaptive Control of Saturated Nonlinear Systems with Time-Varying Partial State Constraints.IEEE Transactions on Cybernetics,50(4),1485-1497.
MLA Wang,Lijie,et al."Event-Triggered Adaptive Control of Saturated Nonlinear Systems with Time-Varying Partial State Constraints".IEEE Transactions on Cybernetics 50.4(2020):1485-1497.
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