✦ LIBER ✦

APPROXIMATE OUTPUT FEEDBACK OPTIMAL CONTROL OF HIGHER-ORDER DYNAMICAL SYSTEMS

✍ Scribed by C. J. GOH; N. J. EDWARDS

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 616 KB
Volume: 18
Category: Article
ISSN: 0143-2087
DOI: 10.1002/(sici)1099-1514(199703/04)18:2<123::aid-oca595>3.0.co;2-8

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✦ Synopsis

We present a design methodology for the synthesis of a dynamic controller which minimizes an arbitrary performance index for a non-linear discrete-time system. We assume that only the output of the dynamical system is available for feedback. Consequently, the system input-output relation needs to be represented as a higher-order non-linear difference equation. We show how the optimal control of a higher-order system can be transformed into that of the conventional first-order system and propose a method for constructing the optimal output feedback dynamic controller using modern function approximation techniques. Illustrative examples are presented to demonstrate the effectiveness of the method. 1997

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