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On Output feedback Nonlinear Model
Predictive Control using high gain observers for a class of systems
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Author(s):
L. Imsland, R. Findeisen, E. Bullinger, F. Allgöwer, B.A. Foss
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Publication Info:
In proceedings of 6th IFAC Symposium on Dynamics and
Control of Process Systems , Dycops-6, 2001, pp 91-96, Jejudo, Korea
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Abstract:
In recent years, nonlinear model predictive control schemes have been derived
that guarantee stability of the closed loop under the assumption of full state
information. However, only limited advances have been made with respect to
output feedback in connection to nonlinear predictive control.
Most of the existing approaches for output feedback nonlinear model
predictive control do only guarantee local stability. Here we consider
the combination of stabilizing instantaneous NMPC schemes with high gain
observers. For a special MIMO system class we show that the closed loop
is asymptotically stable, and that the output feedback NMPC scheme
recovers the performance of the state feedback in the sense that the
region of attraction and the trajectories of the state feedback scheme
are recovered for a
high gain observer with large enough gain and thus leading to
semi-global/non-local results.
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Date:
April 2001
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Type of Publication:
Internal Report 2001-2
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Publisher/Supervisor:
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File Download:
ps,
pdf
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Universität Stuttgart