The Effect of Observer Position on Networked Control Systems with Random Transmission Delays and Packet Dropouts


Mohammadi-Asl E., Hashemzadeh F., Baradarannia M., Bagheri P.

8th International Conference on Control, Instrumentation and Automation, ICCIA 2022, Virtual, Online, Iran, 2 - 03 March 2022 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/iccia54998.2022.9737196
  • City: Virtual, Online
  • Country: Iran
  • Keywords: networked control systems, observer-based control, random packet dropouts, random transmission delays
  • Istanbul Technical University Affiliated: No

Abstract

Our work concerns an observer-based controller design for networked systems with random transmission delays and packet dropouts. It compares the performance of closed-loop networked control systems (NCSs) in two different models. In the first model, the observer is considered at the system side and in the second model, it is considered at the controller side. The random delays and packet dropouts are modelled as an independent Bernoulli distributed white sequence in both models. The mentioned observer-based controller renders the closed-loop NCS exponentially mean-square stable (EMSS) by applying the Lyapunov stability method and achieving sufficient conditions in terms of linear matrix inequalities (LMIs). A numerical example is given to show the effectiveness of the theoretical outcomes in both mentioned models.