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MODEL-BASED NETWORKED CONTROL SYSTEMS Luis A. Montestruque, Panos J. Antsaklis
 

Summary: MODEL-BASED NETWORKED CONTROL SYSTEMS
STABILITY
Luis A. Montestruque, Panos J. Antsaklis
University of Notre Dame, Notre Dame, IN 46556
Department of Electrical Engineering
1. ABSTRACT
In this report the control of continuous linear plants where the state sensor is connected to
a linear controller/actuator via a network is addressed. The work focuses on reducing the
network usage using knowledge of the plant dynamics. Specifically, the controller uses
an explicit model of the plant that approximates the plant dynamics and makes possible
stabilization of the plant even under slow network conditions. Necessary and sufficient
conditions for stability are derived for the presented setup in terms of the update time h
and the parameters of the plant and of its model. The deterioration of behavior when
either h or the modeling error increase is explicitly shown.
2. INTRODUCTION
2.1 BACKGROUND
The use of networks as a media to interconnect the different components in an industrial
control system is rapidly increasing. For example in large scale plants and in
geographically distributed systems, where the number and/or location of different
subsystems to control make the use of single wires to interconnect the control system

  

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

 

Collections: Engineering