Robust Output Feedback Disturbance Rejection Control by Simultaneously Estimating State and Disturbance

This paper tackles the problem of simultaneous estimation of the state and the unknown disturbance of an MIMO disturbed system and designs the disturbance rejection controller according to the estimation information. Through a series of transformations, we can transform the original system into two...

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Main Author: Jeang-Lin Chang
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Journal of Control Science and Engineering
Online Access:http://dx.doi.org/10.1155/2011/568379
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author Jeang-Lin Chang
author_facet Jeang-Lin Chang
author_sort Jeang-Lin Chang
collection DOAJ
description This paper tackles the problem of simultaneous estimation of the state and the unknown disturbance of an MIMO disturbed system and designs the disturbance rejection controller according to the estimation information. Through a series of transformations, we can transform the original system into two subsystems and then propose a sliding mode observer and a descriptor system form observer, respectively. Our algorithm can simultaneously estimate the state and the unknown disturbance. The estimation error is shown to be bounded within a small region. Moreover, the controller algorithm developed in this paper can effectively avoid the peaking phenomenon. Finally, the feasibility and the performance using the proposed method are analyzed and demonstrated with two simulated examples.
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institution Kabale University
issn 1687-5249
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publishDate 2011-01-01
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series Journal of Control Science and Engineering
spelling doaj-art-76d352ba1b454b5cbfe86ccde670abcd2025-02-03T01:31:27ZengWileyJournal of Control Science and Engineering1687-52491687-52572011-01-01201110.1155/2011/568379568379Robust Output Feedback Disturbance Rejection Control by Simultaneously Estimating State and DisturbanceJeang-Lin Chang0Department of Electrical Engineering, Oriental Institute of Technology, Panchiao, New Taipei City 220, TaiwanThis paper tackles the problem of simultaneous estimation of the state and the unknown disturbance of an MIMO disturbed system and designs the disturbance rejection controller according to the estimation information. Through a series of transformations, we can transform the original system into two subsystems and then propose a sliding mode observer and a descriptor system form observer, respectively. Our algorithm can simultaneously estimate the state and the unknown disturbance. The estimation error is shown to be bounded within a small region. Moreover, the controller algorithm developed in this paper can effectively avoid the peaking phenomenon. Finally, the feasibility and the performance using the proposed method are analyzed and demonstrated with two simulated examples.http://dx.doi.org/10.1155/2011/568379
spellingShingle Jeang-Lin Chang
Robust Output Feedback Disturbance Rejection Control by Simultaneously Estimating State and Disturbance
Journal of Control Science and Engineering
title Robust Output Feedback Disturbance Rejection Control by Simultaneously Estimating State and Disturbance
title_full Robust Output Feedback Disturbance Rejection Control by Simultaneously Estimating State and Disturbance
title_fullStr Robust Output Feedback Disturbance Rejection Control by Simultaneously Estimating State and Disturbance
title_full_unstemmed Robust Output Feedback Disturbance Rejection Control by Simultaneously Estimating State and Disturbance
title_short Robust Output Feedback Disturbance Rejection Control by Simultaneously Estimating State and Disturbance
title_sort robust output feedback disturbance rejection control by simultaneously estimating state and disturbance
url http://dx.doi.org/10.1155/2011/568379
work_keys_str_mv AT jeanglinchang robustoutputfeedbackdisturbancerejectioncontrolbysimultaneouslyestimatingstateanddisturbance