Seminar Details
2010-10-05 (15.00) : Networked Control Systems: a Discrete-time Approach
At Euler building
Organized by Mathematical Engineering
Speaker :
Nathan VAN DE WOUW (Eindhoven University of Technology)
Abstract :
Networked Control Systems (NCSs) are control systems in which the
controller communicates with the sensors and actuators of the plant over
a communication network (e.g. a wireless network).
The advantages of the exploitation of such communication networks in the
context of control are flexible architectures
and a reduction of installation and maintenance costs. Important
disadvantages of NCSs are network-induced effects such as delays,
variable sampling intervals, packet dropouts and communication
constraints. These network-induced effects may have a detrimental effect
on the stability and performance of the control system. In this
presentation, we therefore present results on the robust stability and
stabilisation of NCSs in the face of such network-induced effects. Here
we will focus on a discrete-time modelling approach for the description
of linear NCSs with these network phenomena. This discrete-time NCS
model is used to formulate sufficient conditions in terms of Linear
Matrix Inequalities for both the robust stability analysis and the
synthesis of stabilising controllers for linear NCS. Besides the
stabilisation problem, also results on the tracking of time-varying
reference trajectories in a networked setting are presented.