Adaptive Robust Quadratic Stabilization Tracking Control for Robotic System with Uncertainties and External Disturbances

An adaptive robust quadratic stabilization tracking controller with hybrid scheme is proposed for robotic system with uncertainties and external disturbances. The hybrid scheme combines computed torque controller (CTC) with an adaptive robust compensator, in which variable structure control (VSC) an...

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Main Authors: Jinzhu Peng, Yan Liu
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Journal of Control Science and Engineering
Online Access:http://dx.doi.org/10.1155/2014/715250
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author Jinzhu Peng
Yan Liu
author_facet Jinzhu Peng
Yan Liu
author_sort Jinzhu Peng
collection DOAJ
description An adaptive robust quadratic stabilization tracking controller with hybrid scheme is proposed for robotic system with uncertainties and external disturbances. The hybrid scheme combines computed torque controller (CTC) with an adaptive robust compensator, in which variable structure control (VSC) and H∞ optimal control approaches are adopted. The uncertain robot manipulator is mainly controlled by CTC, the VSC is used to eliminate the effect of the uncertainties and ensure global stability, and H∞ approach is designed to achieve a certain tracking performance of closed-loop system. A quadratic stability approach, which allows separate treatment of parametric uncertainties, is used to reduce the conservatism of the conventional robust control approach. It can be also guaranteed that all signals in closed-loop system are bounded. The validity of the proposed control scheme is shown by computer simulation of a two-link robotic manipulator.
format Article
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institution Kabale University
issn 1687-5249
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publishDate 2014-01-01
publisher Wiley
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series Journal of Control Science and Engineering
spelling doaj-art-66a8c1f1c7224c55a1827089995cc47c2025-02-03T01:21:29ZengWileyJournal of Control Science and Engineering1687-52491687-52572014-01-01201410.1155/2014/715250715250Adaptive Robust Quadratic Stabilization Tracking Control for Robotic System with Uncertainties and External DisturbancesJinzhu Peng0Yan Liu1School of Electrical Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, ChinaLibrary of Zhengzhou University, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, ChinaAn adaptive robust quadratic stabilization tracking controller with hybrid scheme is proposed for robotic system with uncertainties and external disturbances. The hybrid scheme combines computed torque controller (CTC) with an adaptive robust compensator, in which variable structure control (VSC) and H∞ optimal control approaches are adopted. The uncertain robot manipulator is mainly controlled by CTC, the VSC is used to eliminate the effect of the uncertainties and ensure global stability, and H∞ approach is designed to achieve a certain tracking performance of closed-loop system. A quadratic stability approach, which allows separate treatment of parametric uncertainties, is used to reduce the conservatism of the conventional robust control approach. It can be also guaranteed that all signals in closed-loop system are bounded. The validity of the proposed control scheme is shown by computer simulation of a two-link robotic manipulator.http://dx.doi.org/10.1155/2014/715250
spellingShingle Jinzhu Peng
Yan Liu
Adaptive Robust Quadratic Stabilization Tracking Control for Robotic System with Uncertainties and External Disturbances
Journal of Control Science and Engineering
title Adaptive Robust Quadratic Stabilization Tracking Control for Robotic System with Uncertainties and External Disturbances
title_full Adaptive Robust Quadratic Stabilization Tracking Control for Robotic System with Uncertainties and External Disturbances
title_fullStr Adaptive Robust Quadratic Stabilization Tracking Control for Robotic System with Uncertainties and External Disturbances
title_full_unstemmed Adaptive Robust Quadratic Stabilization Tracking Control for Robotic System with Uncertainties and External Disturbances
title_short Adaptive Robust Quadratic Stabilization Tracking Control for Robotic System with Uncertainties and External Disturbances
title_sort adaptive robust quadratic stabilization tracking control for robotic system with uncertainties and external disturbances
url http://dx.doi.org/10.1155/2014/715250
work_keys_str_mv AT jinzhupeng adaptiverobustquadraticstabilizationtrackingcontrolforroboticsystemwithuncertaintiesandexternaldisturbances
AT yanliu adaptiverobustquadraticstabilizationtrackingcontrolforroboticsystemwithuncertaintiesandexternaldisturbances