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Observer-based strict positive real (SPR) feedback control system design

In English

Författare

Summary, in English

This paper presents theory for stability analysis and design for a class of observer-based feedback control systems. Relaxation of the controllability and observability conditions imposed in the Yakubovich-Kalman-Popov (YKP) lemma can be made for a class of nonlinear systems described by a linear time-invariant system (LTI) with a feedback-connected cone-bounded nonlinear element. It is shown how a circle-criterion approach can be used to design an observer-based state feedback control which yields a closed-loop system with specified robustness characteristics. The approach is relevant for design with preservation of stability when a cone-bounded nonlinearity is introduced in the feedback loop. Important applications are to be found in robotics (force control) and nonlinear control in hybrid control. Copyright (C) 2001 IFAC.

Publiceringsår

2002

Språk

Engelska

Sidor

1517-1522

Publikation/Tidskrift/Serie

Non-Linear Control Systems 2001, vols 1-3

Dokumenttyp

Konferensbidrag

Förlag

Elsevier

Ämne

  • Control Engineering

Nyckelord

  • strict positive realness (SPR)
  • observers
  • stability
  • robustness

Conference name

5th IFAC Symposium on Nonlinear Control Systems

Conference date

2001-07-04 - 2001-07-06

Conference place

St Petersburg, Russian Federation

Status

Published

Projekt

  • LU Robotics Laboratory

ISBN/ISSN/Övrigt

  • ISSN: 0962-9505