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Sporadic event-based control of first-order linear stochastic systems

Henningsson, Toivo LU ; Johannesson, Erik LU and Cervin, Anton LU (2008) In Automatica 44(11). p.2890-2895
Abstract
The standard approach in computer-controlled systems is to sample and control periodically. In certain applications, such as networked control systems orenergy-constrained systems, it could be advantageous to instead use event-based control schemes. Aperiodic event-based control of first-order stochastic systems has been investigated in previous work. In any real implementation, however, it is necessary to have a well-defined minimum inter-event time. In this paper, we explore two such sporadic control schemes for first-order linear stochastic systems and compare the achievable performance to both periodic and aperiodic control. The results show that sporadic control can give better performance than periodic control in terms of both... (More)
The standard approach in computer-controlled systems is to sample and control periodically. In certain applications, such as networked control systems orenergy-constrained systems, it could be advantageous to instead use event-based control schemes. Aperiodic event-based control of first-order stochastic systems has been investigated in previous work. In any real implementation, however, it is necessary to have a well-defined minimum inter-event time. In this paper, we explore two such sporadic control schemes for first-order linear stochastic systems and compare the achievable performance to both periodic and aperiodic control. The results show that sporadic control can give better performance than periodic control in terms of both reduced process state variance and reduced control action frequency. (C) 2008 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Networked control systems, Event-based control, Hybrid systems, Real-time systems, Stochastic optimal control
in
Automatica
volume
44
issue
11
pages
2890 - 2895
publisher
Pergamon
external identifiers
  • wos:000261350000022
ISSN
0005-1098
DOI
10.1016/j.automatica.2008.03.026
language
English
LU publication?
yes
id
e4a2135a-b09c-4fd2-8d54-a7aa7c0cf23b (old id 1305769)
date added to LUP
2009-03-23 10:24:21
date last changed
2016-04-16 01:33:46
@article{e4a2135a-b09c-4fd2-8d54-a7aa7c0cf23b,
  abstract     = {The standard approach in computer-controlled systems is to sample and control periodically. In certain applications, such as networked control systems orenergy-constrained systems, it could be advantageous to instead use event-based control schemes. Aperiodic event-based control of first-order stochastic systems has been investigated in previous work. In any real implementation, however, it is necessary to have a well-defined minimum inter-event time. In this paper, we explore two such sporadic control schemes for first-order linear stochastic systems and compare the achievable performance to both periodic and aperiodic control. The results show that sporadic control can give better performance than periodic control in terms of both reduced process state variance and reduced control action frequency. (C) 2008 Elsevier Ltd. All rights reserved.},
  author       = {Henningsson, Toivo and Johannesson, Erik and Cervin, Anton},
  issn         = {0005-1098},
  keyword      = {Networked control systems,Event-based control,Hybrid systems,Real-time systems,Stochastic optimal control},
  language     = {eng},
  number       = {11},
  pages        = {2890--2895},
  publisher    = {Pergamon},
  series       = {Automatica},
  title        = {Sporadic event-based control of first-order linear stochastic systems},
  url          = {http://dx.doi.org/10.1016/j.automatica.2008.03.026},
  volume       = {44},
  year         = {2008},
}