Active suppression of centrifugal compressor surge has been demonstrated on a centrifugal compressor equipped with a servo-actuated plenum exit throttle controller. The control scheme is fundamentally different from conventional surge control techniques in that it addresses directly the dynamic behavior of the compression system to displace the surge line to lower mass flows. The method used is to feed back perturbations in plenum pressure rise, in real time, to a fast acting control valve. The increased aerodynamic damping of incipient oscillations due to the resulting valve motion allows stable operation past the normal surge line. For the compressor used, a 25% reduction in the surge point mass flow was achieved, over a range of speeds and pressure ratios. Time-resolved measurements during controlled operation revealed that the throttle required relatively little power to suppress the surge oscillations, because the disturbances are attacked in their initial stages. Although designed for operation with small disturbances, the controller was also able to eliminate existing, large amplitude, surge oscillations. Comparison of experimental results with theoretical predictions showed that a lumped parameter model appeared adequate to represent the behavior of the compression system with the throttle controller and, perhaps more importantly, to be used in the design of more sophisticated control strategies.
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ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition
June 11–14, 1990
Brussels, Belgium
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7904-7
PROCEEDINGS PAPER
Active Stabilization of Centrifugal Compressor Surge
J. E. Pinsley,
J. E. Pinsley
Massachusetts Institute of Technology, Cambridge, MA
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G. R. Guenette,
G. R. Guenette
Massachusetts Institute of Technology, Cambridge, MA
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A. H. Epstein,
A. H. Epstein
Massachusetts Institute of Technology, Cambridge, MA
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E. M. Greitzer
E. M. Greitzer
Massachusetts Institute of Technology, Cambridge, MA
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J. E. Pinsley
Massachusetts Institute of Technology, Cambridge, MA
G. R. Guenette
Massachusetts Institute of Technology, Cambridge, MA
A. H. Epstein
Massachusetts Institute of Technology, Cambridge, MA
E. M. Greitzer
Massachusetts Institute of Technology, Cambridge, MA
Paper No:
90-GT-123, V001T01A032; 11 pages
Published Online:
March 18, 2015
Citation
Pinsley, JE, Guenette, GR, Epstein, AH, & Greitzer, EM. "Active Stabilization of Centrifugal Compressor Surge." Proceedings of the ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition. Volume 1: Turbomachinery. Brussels, Belgium. June 11–14, 1990. V001T01A032. ASME. https://doi.org/10.1115/90-GT-123
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