A Control-Loop Performance Monitor

Research output: Contribution to journalArticle

Abstract

A procedure for automatic monitoring of control-loop performance is presented. The control loop performance monitor (CLPM) detects oscillations in the control loop. These oscillations are normally caused by too-high friction in the control valve, but there are other reasons as well. The CLPM is primarily intended to be connected to PID controllers, but it can also be connected to other controllers. The procedure is automatic in the sense that no additional parameters except the normal controller parameters have to be specified. The paper contains both a derivation of the CLPM and results from industrial experiments.

Details

Authors
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Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Control Engineering

Keywords

  • Valve, oscillation, friction, stick-slip motion, fault detection.
Original languageEnglish
Pages (from-to)1543-1551
JournalControl Engineering Practice
Volume3
Issue number11
Publication statusPublished - 1995
Publication categoryResearch
Peer-reviewedYes