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Detection and Diagnosis of Oscillation in Control Loops

In English

Författare

Summary, in English

Previous work presented a real-time algorithm for detection of oscillations in PI and PID feedback control loops. This paper examines further opportunities for oscillation detection in the off-line analysis of ensembles of data from control loops. Its use with measurements from routine operations is emphasised.

The paper presents operational signatures that indicate the cause of an oscillation. Typically, a full diagnosis requires a special test for which the loop is taken out of routine operation. The signatures lead to recommendations about which special test is most appropriate. They therefore reduce the time spent in trouble-shooting by guiding the choice of thest.

Publiceringsår

1997

Språk

Engelska

Sidor

1343-1354

Publikation/Tidskrift/Serie

Control Engineering Practice

Volym

5

Issue

10

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Control Engineering

Nyckelord

  • Control loop
  • fault diagnosis
  • performance analysis
  • power spectra
  • valve friction

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0967-0661