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Event-Triggered Output Feedback Control for Networked Control Systems using Passivity: Triggering Condition and Limitations
 

Summary: Event-Triggered Output Feedback Control for Networked Control
Systems using Passivity: Triggering Condition and Limitations
Han Yu and Panos J. Antsaklis
Abstract-- Most of the work on event-triggered control in
the literature is based on static state-feedback controllers. In
this paper, a dynamic output feedback based event-triggered
control scheme is introduced for stabilization of Input Feed-
forward Output Feedback Passive (IF-OFP) networked control
systems(NCSs), which is a more general case compared with
the passive and the OFP systems investigated in our previous
work [20]. The triggering condition is derived based on the
passivity theorem which allows us to characterize a large class
of output feedback stabilizing controllers. We show that under
the triggering condition derived in this paper, the control system
is finite-gain L2 stable in the presence of bounded external
disturbances. We provide some analysis on the inter-event time
which reveals the difficulties of obtaining a common lower
bound on the inter-event time when the full-state information
of the plant is not used. Some challenges of applying event-
triggered control to real time NCSs are also discussed.

  

Source: Antsaklis, Panos - Department of Electrical Engineering, University of Notre Dame

 

Collections: Engineering