DocumentCode :
1354065
Title :
A Delay-Dependent Dual-Rate PID Controller Over an Ethernet Network
Author :
Cuenca, Ángel ; Salt, Julián ; Sala, Antonio ; Pizá, Ricardo
Author_Institution :
Dept. de Ing. de Sist. y Autom., Univ. Politec. de Valencia, Valencia, Spain
Volume :
7
Issue :
1
fYear :
2011
Firstpage :
18
Lastpage :
29
Abstract :
In this paper, a methodology to design controllers able to cope with different load conditions on an Ethernet network is introduced. Load conditions induce time-varying delays between measurements and control. To face these variations an interpolated, delay-dependent gain scheduling law is used. The lack of synchronization is solved by adopting an event-based control approach. The dual-rate control action computation is carried out at a remote controller, whereas control actions and measurements are taken out locally at the controlled process site. Stability is proved in terms of probabilistic linear matrix inequalities. TrueTime simulations in an Ethernet case show the benefit of the proposal, which is later validated on an experimental test-bed Ethernet environment.
Keywords :
delays; duality (mathematics); linear matrix inequalities; local area networks; networked control systems; stability; synchronisation; three-term control; time-varying systems; Ethernet network; TrueTime simulation; delay dependent dual rate PID controller; event based control; gain scheduling; load condition; probabilistic linear matrix inequality; remote controller; stability analysis; time varying delay; Actuators; Delay; Ethernet networks; Load modeling; Stability analysis; Synchronization; Multirate control systems; PID controller; network delay; networked control system; stability analysis;
fLanguage :
English
Journal_Title :
Industrial Informatics, IEEE Transactions on
Publisher :
ieee
ISSN :
1551-3203
Type :
jour
DOI :
10.1109/TII.2010.2085007
Filename :
5604696
Link To Document :
بازگشت