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Extremum-seeking with variable gain control for intensifying biogas production in anaerobic fermentation

Liu, Jing LU ; Olsson, Gustaf LU and Mattiasson, Bo LU (2006) In Water Science and Technology 53(4-5). p.35-44
Abstract
A state-dependent variable-gain control system is implemented to follow the characteristics of a laboratory-scale up-flow anaerobic fixed-bed reactor dynamically. The transition from one state to another is determined on an hourly basis, depending on difference between the setpoint of the reactor pH and its true value. Considerable improvement of the process stability - reduction of oscillation in both the reactor pH and biogas production rate during high-rate operation, has been achieved, although the control structure is simple and intuitive.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
cascade control, anaerobic digestion, extremum-seeking, variable-gain, control
in
Water Science and Technology
volume
53
issue
4-5
pages
35 - 44
publisher
IWA Publishing
external identifiers
  • wos:000238056000005
  • pmid:16722053
  • scopus:33646727552
ISSN
0273-1223
DOI
10.2166/wst.2006.108
language
English
LU publication?
yes
id
c60656b0-a212-4e8f-b5b8-26afcdc6adc6 (old id 406934)
date added to LUP
2007-10-09 08:17:23
date last changed
2019-04-23 02:53:21
@article{c60656b0-a212-4e8f-b5b8-26afcdc6adc6,
  abstract     = {A state-dependent variable-gain control system is implemented to follow the characteristics of a laboratory-scale up-flow anaerobic fixed-bed reactor dynamically. The transition from one state to another is determined on an hourly basis, depending on difference between the setpoint of the reactor pH and its true value. Considerable improvement of the process stability - reduction of oscillation in both the reactor pH and biogas production rate during high-rate operation, has been achieved, although the control structure is simple and intuitive.},
  author       = {Liu, Jing and Olsson, Gustaf and Mattiasson, Bo},
  issn         = {0273-1223},
  keyword      = {cascade control,anaerobic digestion,extremum-seeking,variable-gain,control},
  language     = {eng},
  number       = {4-5},
  pages        = {35--44},
  publisher    = {IWA Publishing},
  series       = {Water Science and Technology},
  title        = {Extremum-seeking with variable gain control for intensifying biogas production in anaerobic fermentation},
  url          = {http://dx.doi.org/10.2166/wst.2006.108},
  volume       = {53},
  year         = {2006},
}