On Smith predictor based controllers for plants with time delay and multiple unstable modes

This work proposes an extension of the Smith predictor to design stabilizing controllers for linear time-invariant (LTI) time-delay single-input single-output (SISO) systems with multiple unstable modes. The main contribution of this method is that it simplifies earlier predictor-based control desig...

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Bibliographic Details
Published inSystems & control letters Vol. 172; p. 105453
Main Authors Yeg̃in, M.O., Özbay, H.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.02.2023
Subjects
Robust controller
Single-input single-output systems
Smith predictor
Time-delay
Unstable systems
Robust controller
Time-delay
Single-input single-output systems
Smith predictor
Unstable systems
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ISSN0167-6911
1872-7956
DOI10.1016/j.sysconle.2022.105453

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Summary:This work proposes an extension of the Smith predictor to design stabilizing controllers for linear time-invariant (LTI) time-delay single-input single-output (SISO) systems with multiple unstable modes. The main contribution of this method is that it simplifies earlier predictor-based control designs for unstable plants. The predictor filters are designed by solving a Nevanlinna–Pick interpolation problem for optimal robust stability.
ISSN:0167-6911
1872-7956
DOI:10.1016/j.sysconle.2022.105453