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Output‐feedback control for large‐scale uncertain systems with unknown delays and nonlinearly growing interconnections.

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Title: Output‐feedback control for large‐scale uncertain systems with unknown delays and nonlinearly growing interconnections.
Authors: Yu, Weiyong1 (AUTHOR), Tang, Lulu1 (AUTHOR), Zhou, Hongbing2 (AUTHOR) hbzhou@amss.ac.cn, Zhang, Liansheng3 (AUTHOR), Liu, Qiang1 (AUTHOR)
Source: Asian Journal of Control. Mar2026, Vol. 28 Issue 2, p1056-1071. 16p.
Subjects: Feedback control systems, Large scale systems, Mathematics, Lyapunov functions, Uncertain systems
Abstract: This paper investigates the global output‐feedback control problem for a family of large‐scale uncertain nonlinear systems with unknown delays and nonlinearly growing interconnections. Different from the existing literature, the system interconnections meet a nonlinear growth of the unmeasurable (delayed) states multiplied by an unknown constant and input‐output functions. The complicated interconnections, especially the nonlinear growth of unmeasurable (delayed) states, and the unknown input delays make the problem more challenging. By smartly applying the gain‐scaling technique and skillfully constructing Lyapunov–Krasovskii functionals, a suite of novel output‐feedback controllers with multiple correlated dynamic gains are proposed to guarantee the global convergence of the original system states and the global boundedness of the closed‐loop system states. Numerical examples are given to illustrate the effectiveness of the proposed control strategy. [ABSTRACT FROM AUTHOR]
Copyright of Asian Journal of Control is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Output‐feedback control for large‐scale uncertain systems with unknown delays and nonlinearly growing interconnections.
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  Data: <searchLink fieldCode="JN" term="%22Asian+Journal+of+Control%22">Asian Journal of Control</searchLink>. Mar2026, Vol. 28 Issue 2, p1056-1071. 16p.
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  Data: <searchLink fieldCode="DE" term="%22Feedback+control+systems%22">Feedback control systems</searchLink><br /><searchLink fieldCode="DE" term="%22Large+scale+systems%22">Large scale systems</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematics%22">Mathematics</searchLink><br /><searchLink fieldCode="DE" term="%22Lyapunov+functions%22">Lyapunov functions</searchLink><br /><searchLink fieldCode="DE" term="%22Uncertain+systems%22">Uncertain systems</searchLink>
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  Label: Abstract
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  Data: This paper investigates the global output‐feedback control problem for a family of large‐scale uncertain nonlinear systems with unknown delays and nonlinearly growing interconnections. Different from the existing literature, the system interconnections meet a nonlinear growth of the unmeasurable (delayed) states multiplied by an unknown constant and input‐output functions. The complicated interconnections, especially the nonlinear growth of unmeasurable (delayed) states, and the unknown input delays make the problem more challenging. By smartly applying the gain‐scaling technique and skillfully constructing Lyapunov–Krasovskii functionals, a suite of novel output‐feedback controllers with multiple correlated dynamic gains are proposed to guarantee the global convergence of the original system states and the global boundedness of the closed‐loop system states. Numerical examples are given to illustrate the effectiveness of the proposed control strategy. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Asian Journal of Control is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1002/asjc.3707
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 16
        StartPage: 1056
    Subjects:
      – SubjectFull: Feedback control systems
        Type: general
      – SubjectFull: Large scale systems
        Type: general
      – SubjectFull: Mathematics
        Type: general
      – SubjectFull: Lyapunov functions
        Type: general
      – SubjectFull: Uncertain systems
        Type: general
    Titles:
      – TitleFull: Output‐feedback control for large‐scale uncertain systems with unknown delays and nonlinearly growing interconnections.
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            NameFull: Yu, Weiyong
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            NameFull: Tang, Lulu
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            NameFull: Zhou, Hongbing
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            NameFull: Zhang, Liansheng
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            NameFull: Liu, Qiang
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          Dates:
            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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              Value: 28
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              Value: 2
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            – TitleFull: Asian Journal of Control
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