Predictor-based networked control under uncertain transmission delays

Anton Selivanov*, Emilia Fridman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)101-108
Number of pages8
JournalAutomatica
Volume70
DOIs
StatePublished - 1 Aug 2016

Keywords

  • Event-triggered control
  • Networked control systems
  • Predictor-based control

Fingerprint

Dive into the research topics of 'Predictor-based networked control under uncertain transmission delays'. Together they form a unique fingerprint.

Cite this