Advanced

Detection and Diagnosis of Oscillation in Control Loops

Thornhill, N. F. and Hägglund, Tore LU (1997) In Control Engineering Practice 5(10). p.1343-1354
Abstract
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.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Control loop, fault diagnosis, performance analysis, power spectra, valve friction
in
Control Engineering Practice
volume
5
issue
10
pages
1343 - 1354
publisher
Elsevier
external identifiers
  • Scopus:0342617639
ISSN
0967-0661
language
English
LU publication?
yes
id
cbc37e30-d83d-474a-8e53-1dd9b2bea230 (old id 8497599)
date added to LUP
2015-12-26 15:54:18
date last changed
2016-04-16 12:02:30
@misc{cbc37e30-d83d-474a-8e53-1dd9b2bea230,
  abstract     = {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.<br/><br>
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.},
  author       = {Thornhill, N. F. and Hägglund, Tore},
  issn         = {0967-0661},
  keyword      = {Control loop,fault diagnosis,performance analysis,power spectra,valve friction},
  language     = {eng},
  number       = {10},
  pages        = {1343--1354},
  publisher    = {ARRAY(0x854b240)},
  series       = {Control Engineering Practice},
  title        = {Detection and Diagnosis of Oscillation in Control Loops},
  volume       = {5},
  year         = {1997},
}