Compensation-based control for lossy communication networks

In this paper, we are concerned with the stability analysis and the design of stabilising compensation-based control algorithms for networked control systems (NCSs) that exhibit packet dropouts. In order to increase the robustness against packet dropouts for such NCSs, we propose a new type of model...

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Bibliographic Details
Published in:International journal of control 2013-10, Vol.86 (10), p.1880-1897
Main Authors: Gommans, T.M.P., Heemels, W.P.M.H., Bauer, N.W., Wouw, N. van de
Format: Article
Language:English
Subjects:
Channels
Communication
Communication networks
Compensation
Compensators
Control algorithms
Design engineering
dropout compensation
Dropouts
lossy communication
Markov jump linear systems
Mathematical models
networked control systems
Robustness
Stochastic models
Strategy
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Summary:In this paper, we are concerned with the stability analysis and the design of stabilising compensation-based control algorithms for networked control systems (NCSs) that exhibit packet dropouts. In order to increase the robustness against packet dropouts for such NCSs, we propose a new type of model-based dropout compensator, which depends on the local dropout history. Moreover, we provide linear matrix inequality based synthesis conditions for such compensators guaranteeing robust stability. The analysis and design framework includes both worst-case-bound and stochastic models to describe the packet-dropout behaviour in both the sensor-to-controller and the controller-to-actuator channels. Numerical examples demonstrate the significantly improved robustness with respect to packet dropouts using the proposed dropout compensator, compared to using the existing zero strategy and the hold strategy.
ISSN:0020-7179
1366-5820
DOI:10.1080/00207179.2013.801081