NDLI: A receding horizon strategy for the hierarchical control of manufacturing systems

Content Provider	IEEE Xplore Digital Library
Author	Sousa, J.B. Pereira, F.L.
Copyright Year	1994
Description	Author affiliation: Dept. de Engenharia Electrotecnica e de Computadores, Porto Univ., Portugal (Sousa, J.B.; Pereira, F.L.)
Abstract	This paper concerns the development of a hierarchical framework for the planning and scheduling of a class of manufacturing systems. In this framework, dynamic optimization plays an important role in order to define control strategies that, by taking into account the dynamic nature of these systems, minimize customized cost functionals subject to state and control constraints. The proposed architecture is composed of two hierarchical levels where a two way information flow, assuming the form of a state feedback control, is obtained through a receding horizon control scheme. At the higher level, an optimal control problem is solved by an iterative algorithm in order to define the control strategies in terms of aggregated production rates for the various subsystems. At the lower level, this control strategy is further refined in such a way that all sequences of operations are fully specified. Although this stage is strongly problem dependent an approach based on the notion of critical machine plays an important role in order to exploit the available flexibility.<>
Starting Page	443
Ending Page	450
File Size	750467
Page Count	8
File Format	PDF
ISBN	0818665106
DOI	10.1109/CIMAT.1994.389035
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-10-10
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Control systems Manufacturing systems Job shop scheduling Optimal control Dynamic scheduling Production systems Constraint optimization Cost function State feedback Iterative algorithms
Content Type	Text
Resource Type	Article

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