DocumentCode
3268316
Title
A simple method for oscillation diagnosis in process control loops
Author
Horch, Alexander
Author_Institution
R. Inst. of Technol., Stockholm, Sweden
Volume
2
fYear
1999
fDate
1999
Firstpage
1284
Abstract
A simple method for the diagnosis of oscillations in process control loops is presented. The new method is based on the cross-correlation between control variable and loop output and it is shown to correctly diagnose the two most important reasons for oscillations in control loops in the process industry, namely external oscillating disturbances and static friction (stiction) in control valves
Keywords
control system analysis; correlation methods; oscillations; process control; control valves; control variable; cross-correlation; external oscillating disturbances; loop output; oscillation diagnosis; process control loops; static friction; stiction; Automatic control; Computerized monitoring; Distributed control; Friction; Industrial control; Inspection; Process control; Testing; Valves;
fLanguage
English
Publisher
ieee
Conference_Titel
Control Applications, 1999. Proceedings of the 1999 IEEE International Conference on
Conference_Location
Kohala Coast, HI
Print_ISBN
0-7803-5446-X
Type
conf
DOI
10.1109/CCA.1999.801157
Filename
801157
Link To Document