Saint Petersburg National Research University of Information Technologies, Mechanics and Optics

Frequency and time-domain analysis on performance of a production line operated by observer-based distributed control

Authors: Andrievsky B, Starkov K., Pogromsky A.

Year: 2013

Publisher: International Journal of Systems Science

Number: №10

Pages: 1885-1896

Pages total: 12

This article deals with the problem of controlling a tandem line of manufacturing machines such that an unknown production demand is tracked with a desired accuracy. To study this problem, a manufacturing machine is approximated by an integrator which is subject to input saturation as a result of the finite capacity of the machine. To solve the problem in the case of unknown demand rate, a combination of feedforward–feedback controller with a reduced-order observer is proposed. The decentralised feedback control strategy for a line of machines is proposed and studied both in continuous time-domain and in frequency-domain representation. The presented illustrating example for a line of four machines underlines the efficiency of the proposed frequency domain-based performance analysis tool.

DOI: 10.1080/00207721.2012.670300

ISSN: 0020-7721

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