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On the design of approximate non-linear parametric controllers

✍ Scribed by Sergio M. Savaresi; Hendrik Nijmeijer; Guido O. Guardabassi

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 231 KB
Volume: 10
Category: Article
ISSN: 1049-8923
DOI: 10.1002/(sici)1099-1239(200003)10:3<137::aid-rnc466>3.0.co;2-i

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✦ Synopsis

This paper focuses on the design of non-linear parametric controllers, around a nominal input/output trajectory of a discrete-time non-linear system. The main result provided herein is a relationship between the tracking performance of the closed-loop control system in the neighbourhood of a nominal trajectory, and some local features (the "rst-order linear approximations about the nominal trajectory) of the non-linear mappings which characterize the plant and the feedback controller. Such a result can be used to predict the dynamic behaviour of the control system, and to reduce the computational complexity of the optimization task associated with the tuning of the parametric feedback controller.

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