Stability criterion for a single decision-making node in decentralized material handling systems
Publication date
2012-01-01
Document type
Conference paper
Author
Organisational unit
Scopus ID
ISBN
ISSN
Conference
IFAC CTS 2012, the 13th IFAC Symposium on Control in Transportation Systems, Sofia, Bulgaria, 12.-14. September 2012
Series or journal
IFAC Proceedings Volumes (IFAC-PapersOnline)
Periodical volume
45
Periodical issue
24
Book title
13th IFAC Symposium on Control in Transportation Systems
First page
320
Last page
327
Peer-reviewed
✅
Part of the university bibliography
✅
Keyword
Decentralized system
Feedback system
Modeling
Simulation
Stability analysis
Time delay
Abstract
Decentralized control concepts are today's answer to deal with growing decision networks and their increasing decision-making complexity. However, influencing the networks dynamics with a decentralized, and hence rather local view of the network, can cause undesirable effects such as: oscillatory network conditions, ruptures of network constraints and finally network breakdowns. In the first section of this paper an oscillation problem in decentralized material handling systems is presented, then a decision-making node with such an oscillatory problem is modeled and simulated. The decentralized control approach applied here is based on delayed feedback information with time-varying delays. Finally an analytical approach for determining the stability of such single network nodes, which was developed by Mehdi and Boukas (2003), is evaluated by comparing the result obtained from it with the results of the simulations. © 2012 IFAC.
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