SPEED AND SURGE CONTROL FOR A LOW-ORDER CENTRIFUGAL-COMPRESSOR MODEL (REPRINTED FROM PROCEEDINGS OF THE SIXTH IEEE CONFERENCE ON CONTROL APPLICATIONS, PG 344-349, 1997)

Authors
GRAVDAHL JT EGELAND O
Citation
Jt. Gravdahl et O. Egeland, SPEED AND SURGE CONTROL FOR A LOW-ORDER CENTRIFUGAL-COMPRESSOR MODEL (REPRINTED FROM PROCEEDINGS OF THE SIXTH IEEE CONFERENCE ON CONTROL APPLICATIONS, PG 344-349, 1997), Modeling, identification and control, 19(1), 1998, pp. 13-29
Citations number
23
Categorie Soggetti
Robotics & Automatic Control","Computer Science Cybernetics","Robotics & Automatic Control","Computer Science Cybernetics
Journal title
Modeling, identification and control → ACNP
ISSN journal
03327353
Volume
19
Issue
1
Year of publication
1998
Pages
13 - 29
Database
ISI
SICI code
0332-7353(1998)19:1<13:SASCFA>2.0.ZU;2-R
Abstract
A model of a variable speed centrifugal compression system is presente d. The model is based on the work of Greizer (1976), but the compresso r characteristic is developed by modelling the losses in the compresso r. For surge control, a close coupled valve is employed. This valve is placed immediately downstream of the compressor, and the pressure dro p over the valve is used as the control variable. This makes it possib le to manipulate the shape of the equivalent compressor, consisting of compressor and valve. The speed of the compressor is controlled with a PI-controller. Semi-global exponential stability of the model with t he proposed controllers is proven by the use of Lyapunovs theorem.