Extremum-seeking with variable gain control for intensifying biogas production in anaerobic fermentation
Author
Summary, in English
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.
Publishing year
2006
Language
English
Pages
35-44
Publication/Series
Water Science and Technology
Volume
53
Issue
4-5
Document type
Journal article
Publisher
IWA Publishing
Topic
- Other Electrical Engineering, Electronic Engineering, Information Engineering
- Industrial Biotechnology
Keywords
- cascade control
- anaerobic digestion
- extremum-seeking
- variable-gain
- control
Status
Published
ISBN/ISSN/Other
- ISSN: 0273-1223