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Output-feedback semiglobal stabilization of stall dynamics for eliminating hysteresis and surge in axial-flow compressors

DSpace at IIT Bombay

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Title Output-feedback semiglobal stabilization of stall dynamics for eliminating hysteresis and surge in axial-flow compressors
 
Creator CHATURVEDI, NA
BHAT, SP
 
Subject rotating stall
systems
 
Description This paper deals with the use of feedback control to eliminate the problems of hysteresis and surge associated with axial-flow compressors. We present a dynamic feedback controller that semiglobally stabilizes every rotating stall equilibrium, and a range of axisymmetric equilibria of the Moore-Greitzer model for axial-flow compressors. The dynamic controller combines a two-state-feedback back-stepping controller from the literature with a nonlinear high-gain observer that estimates the mass flow through the compressor from measurements of the pressure rise across it. Given an equilibrium and a compact inner bound on the domain of attraction, we use Lyapunov techniques to compute an explicit lower bound on the observer gain such that the specified equilibrium is asymptotically stable for the closed-loop system with a domain of attraction that contains the specified inner bound. Simulation results are used to demonstrate that the closed-loop compressor does not exhibit hysteresis and surge oscillations even in response to large and sudden changes in the throttle setting.
 
Publisher IEEE
 
Date 2011-10-25T10:25:18Z
2011-12-15T09:11:47Z
2011-10-25T10:25:18Z
2011-12-15T09:11:47Z
2003
 
Type Proceedings Paper
 
Identifier PROCEEDINGS OF THE 2003 AMERICAN CONTROL CONFERENCE, VOLS 1-6,1727-1732
0-7803-7896-2
0743-1619
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15689
http://hdl.handle.net/100/2289
 
Source Annual American Control Conference (ACC 2003),DENVER, CO,JUN 04, 2003-JUN 06, 2006
 
Language English