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Title: Finite-time disturbance rejection control for robotic manipulators based on sliding mode differentiator
Authors: Su, Jinya
Yang, Jun
Li, Shihua
Keywords: Continuous finite-time anti-disturbance control
Terminal sliding mode
Robotic manipulators
Issue Date: 2013
Publisher: © IEEE
Citation: SU, J. and YANG, J., 2013. Finite-time disturbance rejection control for robotic manipulators based on sliding mode differentiator. 25th Chinese Control and Decision Conference (CCDC), Guizhou, 25th - 27th May 2013
Abstract: The continuous finite-time high-precision anti-disturbance control problem for robotic manipulators (RM) under external disturbances and parameter uncertainties is investigated in this article. Firstly, a continuous terminal sliding mode control (CTSMC) is introduced to stabilize the nominal dynamics of the RM in finite time. Secondly, a sliding mode differentiator is employed to estimate the lumped disturbances to its nominal dynamics in finite time. By feedforward compensating the estimation of the lumped disturbances, a continuous composite controller is thus obtained for the RM system. The composite controller enjoys the following superior properties: 1) it is continuous and thus no chattering phenomenon appears; 2) the finite-time convergence property of the RM system under the proposed controller is guaranteed even in the presence of disturbances and uncertainties; 3) the nominal control performance of the proposed method is recovered to the baseline CTSMC method in the absence of disturbances and uncertainties. The excellent properties of the proposed algorithm is demonstrated by simulation studies.
Description: © 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Sponsor: The work was supported in part by National Natural Science Foundation of China under Grant 61203011, Program for New Century Excellent Talents in University under Grant NCET-10-0328, PhD Programs Foundation of Ministry of Education of China under Grant 20120092120031, and Natural Science Foundation of Jiangsu Province under Grant BK2012327.
Version: Accepted for publication
DOI: 10.1109/CCDC.2013.6561619
URI: https://dspace.lboro.ac.uk/2134/23111
Publisher Link: http://dx.doi.org/10.1109/CCDC.2013.6561619
ISBN: 9781467355346
Appears in Collections:Published Articles (Aeronautical and Automotive Engineering)

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