Networked predictive control of systems with random delay in signal transmission channels

Authors:
G. P. Liu;S. C. Chai;J. X. Mu;D. Rees
Affiliations:
Faculty of Advanced Technology, University of Glamorgan, Pontypridd, UK,NCS Lab, Central South University and CSIS Lab, Chinese Academy of Sciences, China;Faculty of Advanced Technology, University of Glamorgan, Pontypridd, UK;Bechtel Corporation Ltd, London, UK;Faculty of Advanced Technology, University of Glamorgan, Pontypridd, UK
Venue:
International Journal of Systems Science - Networked Control Systems and Wireless Sensor Networks - Theories and Applications
Year:
2008

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Abstract

This article considers the design and stability of networked control systems with random delay in signal transmission channels. To deal with the random delay, a networked predictive control strategy is proposed for discrete networked systems. The key parts of the control strategy are the control prediction generator that provides a set of future control predictions and the network delay compensator that compensates for the network transmission delay. The analytical stability criteria of the closed-loop networked predictive control systems are derived for both fixed and random network delays. The proposed networked predictive control method is illustrated using simulations and practical Intranet-/Internet-based control experiments.