• DocumentCode
    852346
  • Title

    Stability of multiloop LQ regulators with nonlinearities--Part II: Regions of ultimate boundedness

  • Author

    Joshi, S.M.

  • Author_Institution
    NASA Langley Research Center, Hampton, VA, USA
  • Volume
    31
  • Issue
    4
  • fYear
    1986
  • fDate
    4/1/1986 12:00:00 AM
  • Firstpage
    367
  • Lastpage
    370
  • Abstract
    This note investigates the closed-loop stability of linear time-invariant systems controlled by linear quadratic (LQ) regulators when there are nonlinearities in the loops which escape the ( 0.5, \\infty ) stability sector in a bounded region containing the origin. An estimate of the region of ultimate boundedness is obtained, which provides methods for selecting the performance function weights to get better regulator designs.
  • Keywords
    Nonlinearities; Stability, linear systems; Actuators; Control nonlinearities; Control systems; Hysteresis; Linear systems; Optimal control; Regulators; Riccati equations; Stability; Symmetric matrices;
  • fLanguage
    English
  • Journal_Title
    Automatic Control, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9286
  • Type

    jour

  • DOI
    10.1109/TAC.1986.1104273
  • Filename
    1104273
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=852346