Brief Adaptive control of compressor surge instability

Authors:
Franco Blanchini;Pietro Giannattasio
Affiliations:
Dip. di Matematica ed Informatica, University of Udine, Via delle Scienze 206, I-33100 Udine, Italy;Dip. di Energetica e Macchine, University of Udine, Via delle Scienze 206, I-33100 Udine, Italy
Venue:
Automatica (Journal of IFAC)
Year:
2002

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Abstract

In this paper we propose a simple high-gain type adaptive control scheme for surge stabilization in a compression system. We consider a typical configuration in which the plenum throttle position is the control input, while the measured output is given by the total pressure at the compressor inlet. We prove convergence of the control scheme using a simplified, but widely accepted, second-order model. The system does not satisfy strict minimum-phase assumptions, usually introduced in the high-gain type adaptive control context, and therefore the proof has been tailored to the specific problem. We finally validate the proposed controller, by means of both numerical simulation and experiments on a real plant.