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Response Time Driven Design of Control Systems

Xu, Yang LU ; Årzén, Karl-Erik LU ; Bini, Enrico LU and Cervin, Anton LU (2014) 19th IFAC World Congress, 2014
Abstract
A correct design of controllers must necessarily account for the schedule of the controller task over the processor. Existing design techniques are based on the assumption that there is no delay, or the delay is constant over time. However, in practice, almost all controllers have time-varying delay, hence invalidating this assumption. In this paper, we introduce a period design policy, in which the controller delay is modelled by the distribution of the task response time. We show, via simulation, that our method can reduce the control cost compared to the state-of-art methods.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to conference
publication status
published
subject
keywords
Real-time systems, scheduling algorithms, control systems, LQG control, time delay
conference name
19th IFAC World Congress, 2014
external identifiers
  • Scopus:84929833588
project
ELLIIT-sched
language
English
LU publication?
yes
id
b1791f61-4b3b-42ea-b61d-5eeb51107134 (old id 4623361)
date added to LUP
2014-09-05 11:13:29
date last changed
2016-11-27 04:35:54
@misc{b1791f61-4b3b-42ea-b61d-5eeb51107134,
  abstract     = {A correct design of controllers must necessarily account for the schedule of the controller task over the processor. Existing design techniques are based on the assumption that there is no delay, or the delay is constant over time. However, in practice, almost all controllers have time-varying delay, hence invalidating this assumption. In this paper, we introduce a period design policy, in which the controller delay is modelled by the distribution of the task response time. We show, via simulation, that our method can reduce the control cost compared to the state-of-art methods.},
  author       = {Xu, Yang and Årzén, Karl-Erik and Bini, Enrico and Cervin, Anton},
  keyword      = {Real-time systems,scheduling algorithms,control systems,LQG control,time delay},
  language     = {eng},
  title        = {Response Time Driven Design of Control Systems},
  year         = {2014},
}