Imsland, L. and Findeisen, R. and Bullinger, E. and Allgöwer, F. and Foss, B.A. (2003) A note on stability, robustness and performance of output feedback nonlinear model predictive control. Journal of Process Control, 13 (7). pp. 633-644. ISSN 0959-1524Full text not available in this repository. (Request a copy from the Strathclyde author)
In recent years, nonlinear model predictive control (NMPC) 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 the framework of nonlinear predictive control. This paper combines stabilizing instantaneous state feedback NMPC schemes with high-gain observers to achieve output feedback stabilization. For a uniformly observable MIMO system class it is shown that the resulting closed loop is asymptotically stable. Furthermore, 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 can be recovered to any degree of accuracy for large enough observer gains, thus leading to semi-regional results. Additionally, it is shown that the output feedback controller is robust with respect to static sector bounded nonlinear input uncertainties.
|Keywords:||nonlinear model predictive control, output feedback stabilization, high gain observers, nonlinear separation principle, Electrical engineering. Electronics Nuclear engineering, Modelling and Simulation, Industrial and Manufacturing Engineering, Control and Systems Engineering, Computer Science Applications|
|Subjects:||Technology > Electrical engineering. Electronics Nuclear engineering|
|Department:||Faculty of Engineering > Electronic and Electrical Engineering|
|Depositing user:||Strathprints Administrator|
|Date Deposited:||16 Jan 2008|
|Last modified:||29 Apr 2016 08:09|