Analysis and modeling of networked control systems: MIMO case withmultiple time delays
Feng-Li Lian
Moyne, J.
Tilbury, D.
Dept. of Mech. Eng., Michigan Univ., Ann Arbor, MI ;
This paper appears in: American Control Conference, 2001. Proceedings of the 2001
Publication Date: 2001
Volume: 6,
On page(s): 4306-4312 vol.6
Meeting Date: 06/25/2001 - 06/27/2001
Location: Arlington, VA, USA
ISBN: 0-7803-6495-3
References Cited: 12
INSPEC Accession Number: 7120825
Digital Object Identifier: 10.1109/ACC.2001.945654
Posted online: 2002-08-07 00:30:21.0
Abstract
This paper discusses the modeling and analysis of networked
control systems (NCS) where sensors, actuators, and controllers are
distributed and interconnected by a common communication medium.
Therefore, multiple distributed communication delays as well as multiple
inputs and multiple outputs are considered in the modeling algorithm. In
addition, the asynchronous sampling mechanisms of distributed sensors
axe characterized to obtain the actual time delays between sensors and
the controller. Due to the characteristics of a network architecture,
piecewise constant plant inputs are assumed and discrete-time models of
plant and controller dynamics are adopted to analyze the stability and
performance of a closed-loop NCS. The analysis result is used to verify
the stability and performance of an NCS if the controller is designed
without considering the impact of multiple time delays. Also, the NCS
model provided can be used as a foundation for further controller design
to compensate for the distributed communication delays
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