Predictor-based networked control under uncertain transmission delays

A. Selivanov; E. Fridman

doi:10.1016/j.automatica.2016.03.032

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arXiv · 1511.05328

Predictor-based networked control under uncertain transmission delays

A. Selivanov·E. Fridman

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Abstract

We consider state-feedback predictor-based control of networked control systems with large time-varying communication delays. We show that even a small controller-to-actuators delay uncertainty may lead to a non-small residual error in a networked control system and reveal how to analyze such systems. Then we design an event-triggered predictor-based controller with sampled measurements and demonstrate that, depending on the delay uncertainty, one should choose various predictor models to reduce the error due to triggering. For the systems with a network only from a controller to actuators, we take advantage of the continuously available measurements by using a continuous-time predictor and employing a recently proposed switching approach to event-triggered control. By an example of an inverted pendulum on a cart we demonstrate that the proposed approach is extremely efficient when the uncertain time-varying network-induced delays are too large for the system to be stabilizable without a predictor.

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BibTeX RIS

A. Selivanov, E. Fridman. 2016-11-04. Predictor-based networked control under uncertain transmission delays. https://doi.org/10.1016/j.automatica.2016.03.032

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