Title :
PI loop status monitoring
Author :
Xia, Chunming ; Howell, John
Author_Institution :
Dept. of Mech. Eng., Glasgow Univ., UK
Abstract :
Loop status monitoring involves the declaration of deterministic trends, such as oscillations and drifting in process plant control loops. By analysing various time domain statistics associated with PI control loops, a trend can be associated as one of seven categories. The basis for doing this is given and the categorisation process is described.
Keywords :
closed loop systems; control system analysis; frequency response; process control; process monitoring; time-domain analysis; two-term control; PI loop status monitoring; categorisation process; closed loop assessment; deterministic trends; drifting; frequency response characteristics; oscillations; process plant control loops; time domain statistics; Cutoff frequency; Frequency response; Monitoring; Noise level; Pi control; Process control; Statistical analysis; Statistics; Time domain analysis; White noise;
Conference_Titel :
Control Applications, 2002. Proceedings of the 2002 International Conference on
Print_ISBN :
0-7803-7386-3
DOI :
10.1109/CCA.2002.1038710
