Title :
Detection and diagnosis of oscillations in control loops
Author :
Taha, Othman ; Dumont, Guy A. ; Davies, Michael S.
Author_Institution :
Dept. of Electr. Eng., British Columbia Univ., Vancouver, BC, Canada
Abstract :
We present an automatic procedure for diagnosis of oscillations in control loops in a paper mill. This procedure is one of the features of a “control loop performance monitoring” (CLPM) system under development, and works online without disturbing normal plant operation. When an oscillating control loop is detected, the diagnosis tools allow the determination of the cause of the oscillating behavior. It could be high friction in the control valve, a poorly tuned controller or the presence of an external perturbation
Keywords :
friction; monitoring; oscillations; paper industry; process control; three-term control; valves; control loop performance monitoring system; control loops; control valve; diagnosis; external perturbation; high friction; oscillations; paper mill; poorly tuned controller; Automatic control; Control systems; Delay effects; Delay estimation; Energy consumption; Friction; Monitoring; Paper mills; Performance loss; Valves;
Conference_Titel :
Decision and Control, 1996., Proceedings of the 35th IEEE Conference on
Conference_Location :
Kobe
Print_ISBN :
0-7803-3590-2
DOI :
10.1109/CDC.1996.573454
