✦ LIBER ✦

Pertubation in the I/O Map of a Non-linear Feedback System Caused by Large Plant Perturbation

✍ Scribed by C.A. Desoer

Publisher: Elsevier Science
Year: 1978
Tongue: English
Weight: 659 KB
Volume: 306
Category: Article
ISSN: 0016-0032
DOI: 10.1016/0016-0032(78)90032-7

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✦ Synopsis

This paper studies the perturbation in the input-output (I/O) map of a multi-input multi-output non-linear feedback system caused by large plant perturbations. It compares the effect of these perturbations on the given feedback system and on the nominally equivalent open-loop system. First the unity feedback system is considered, then a more general configuration-which includes the usual summing node as a special case-is analyzed. In both cases it is shown that the degree of desensitization provided by feedback is controlled by the linearized return difference operator.