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The Center for Control, Dynamical Systems, and Computation University of California at Santa Barbara
 

Summary: The Center for Control, Dynamical Systems, and Computation
University of California at Santa Barbara
Winter 2008 Seminar Series
Presents
Stability and Stabilization of Networked Control Systems: A
Discrete-Time Modeling Approach
Maurice Heemels
Eindhoven University of Technology
Friday, March 14, 2008 3:00-4:00pm Harold Frank Hall 1104
Abstract:
Networked Control Systems (NCSs) are control systems in which (part of) the control loop is closed
over a realtime communication network. The advantages of the use of an NCS are its flexible archi-
tecture and a reduction of installation and maintenance costs. The main disadvantages of NCSs are
the network effects that influence the control loop, such as delays, variable sampling intervals and
packet dropouts. In this presentation the focus will be on the effects of these uncertain and time-vary-
ing delays, time-varying sampling times and packet loss on the stability and the stabilization of the
control loop. Via an example, we will show what the (negative) effects of these phenomena can be on
closed-loop stability and performance. To analyze these effects in more detail, we present a discrete-
time model, describing an NCS including the above network phenomena. This model can describe
both the small delay case (delays smaller than the sampling time) and the large delay case. Moreover,

  

Source: Akhmedov, Azer - Department of Mathematics, University of California at Santa Barbara

 

Collections: Mathematics