Fixed-time anti-disturbance control for systems with multiple disturbances

The anti-disturbance control problem is investigated for systems with multiple disturbances. For the disturbance with partially known information, an observer was designed to give the online estimation. Based on which, a fixed-time anti-disturbance control scheme was proposed by combing regional pol...

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Bibliographic Details
Published inInternational journal of control Vol. 96; no. 9; pp. 2260 - 2270
Main Authors Wei, Xinjiang, Zhang, Huifeng, Zhao, Hanxu, Hu, Xin
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 02.09.2023
Taylor & Francis Ltd
Subjects
anti-disturbance control
Closed loops
Control methods
Control systems
Convergence
disturbance observer
Disturbances
Feedback control
fixed-time stable
Induction generators
Initial conditions
Multiple disturbances
Pole placement
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Summary:The anti-disturbance control problem is investigated for systems with multiple disturbances. For the disturbance with partially known information, an observer was designed to give the online estimation. Based on which, a fixed-time anti-disturbance control scheme was proposed by combing regional pole placement, the control method and fixed-time stability theory. The proposed controller can make the closed-loop system globally stable in fixed time, which has the advantages of high control accuracy, fast convergence speed, and the convergence time is independent of the initial conditions. Finally, two simulation examples including a numerical example and a doubly fed induction generators system are provided to show the effectiveness of the proposed method.
ISSN:0020-7179
1366-5820
DOI:10.1080/00207179.2022.2089598