Closed-Loop Monitoring Systems for Detecting Incipient Instability

Abstract

Monitoring systems are proposed for the detection of incipient instability in uncertain nonlinear systems. The work employs generic features associated with the response to noise inputs of systems bordering on instability. These features, called "noisy precursors" in the work of Wiesenfeld, also yield information on the type of bifurcation that would be associated with the predicted instability. The closed-loop monitoring systems proposed in the paper have several advantages over simple open-loop monitoring. The advantages include the ability to influence the frequencies at which the noisy precursors are observed, and the ability to simultaneously monitor and control the system.

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Document Details

Document Type
Technical Report
Publication Date
Sep 09, 1998
Accession Number
ADA453764

Entities

People

  • Eyad H. Abed
  • Taihyun Kim

Organizations

  • University of Maryland

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Control Systems
  • Eigenvalues
  • Eigenvectors
  • Electrical Engineering
  • Engineering
  • Equations
  • Frequency
  • Gaussian Noise
  • Instability
  • Monitoring
  • Noise
  • Nonlinear Systems
  • Power Spectra
  • Quadratic Equations
  • Spectra
  • Spectrum Analyzers
  • Steady State

Readers

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