• DocumentCode
    1549321
  • Title

    Comments on "An exponentially stable adaptive friction compensator"

  • Author

    Zhang, T. ; Guay, M.

  • Author_Institution
    Dept. of Chem. Eng., Queen´´s Univ., Kingston, Ont., Canada
  • Volume
    46
  • Issue
    11
  • fYear
    2001
  • Firstpage
    1844
  • Lastpage
    1845
  • Abstract
    This note points out a technique error in the above paper (Liao and Chien, IEEE Trans. Automat. Contr., Vol. 45, p. 977-80, 2000). It is shown that without persistence of excitation (PE) of the system signals, the estimated Coulomb friction parameter cannot be guaranteed to converge to its true value. An analysis is provided for the PE condition of parameter asymptotic convergence.
  • Keywords
    asymptotic stability; compensation; convergence; friction; invariance; parameter estimation; Coulomb friction parameter; control action; exponentially stable adaptive friction compensator; parameter asymptotic convergence; Adaptive systems; Chemical engineering; Control systems; Convergence; Equations; Error correction; Friction; Parameter estimation;
  • fLanguage
    English
  • Journal_Title
    Automatic Control, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9286
  • Type

    jour

  • DOI
    10.1109/9.964705
  • Filename
    964705
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1549321