EE Seminar: Decentralized Networked Control of Large-Scale Systems

~~Speaker: Dror Freirich
M.Sc. student under the supervision of Prof. Emilia Fridman

Wednesday, January 27th, 2016 at 15:30
Room 011, Kitot Bldg., Faculty of Engineering

Decentralized Networked Control of Large-Scale Systems

Abstract

Networked control systems, where the plant is controlled via communication network, became a hot topic. Compared with traditional feedback control systems, where the components are usually connected via point-to-point cables, the introduction of communication network media brings great advantages. It is also common place in industry that the total plant to be controlled consists of a large number of interacting subsystems. Usually the control of the plant is designed in a decentralized manner with local control stations allocated to individual subsystems.
     
A time-delay approach to both, continuous and discrete-time, large-scale networked control systems is presented. The local networks operate asynchronously and independently of each other in the presence of variable sampling intervals, transmission delays and scheduling protocols (from sensors to controllers). A Lyapunov-Krasovskii method is presented in order to formulate efficient LMI conditions for the exponential stability of the closed-loop large-scale system. The presented method essentially improves the existing results, and allows, for the first time, large communication delays.