Computer simulation of control strategies for optimal anaerobic digestion.
(2013) In Water Science and Technology 67(3). p.594-603- Abstract
- Three previously published control strategies for anaerobic digestion were implemented in Simulink/Matlab using Anaerobic Digestion Model No. 1 (ADM1) to model the biological process. The controllers' performance were then simulated and evaluated based on their responses from five different types of process scenarios i.e. start-up and steady state performance as well as disturbances from concentration, pH and ammonia in the inflow. Of the three evaluated control strategies, the extremum-seeking variable gain controller gave the best overall performance. However, a proportional feedback controller based on the pH-level, used as a reference case in the evaluation, proved to give as good results as the extremum-seeking variable gain... (More)
- Three previously published control strategies for anaerobic digestion were implemented in Simulink/Matlab using Anaerobic Digestion Model No. 1 (ADM1) to model the biological process. The controllers' performance were then simulated and evaluated based on their responses from five different types of process scenarios i.e. start-up and steady state performance as well as disturbances from concentration, pH and ammonia in the inflow. Of the three evaluated control strategies, the extremum-seeking variable gain controller gave the best overall performance. However, a proportional feedback controller based on the pH-level, used as a reference case in the evaluation, proved to give as good results as the extremum-seeking variable gain controller but with a lower wear on the pump. It was therefore concluded that a fast proportional control of the reactor pH is a key element for optimally controlling a low-buffering anaerobic digestion process. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3347722
- author
- Strömberg, Sten LU ; Possfelt, M O and Liu, Jing LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Water Science and Technology
- volume
- 67
- issue
- 3
- pages
- 594 - 603
- publisher
- IWA Publishing
- external identifiers
-
- wos:000315194500018
- pmid:23202565
- scopus:84874043511
- pmid:23202565
- ISSN
- 0273-1223
- DOI
- 10.2166/wst.2012.603
- language
- English
- LU publication?
- yes
- id
- 22ea7d7c-7412-4d15-aaee-f122c38f5d37 (old id 3347722)
- date added to LUP
- 2016-04-01 13:14:21
- date last changed
- 2022-01-27 18:07:36
@article{22ea7d7c-7412-4d15-aaee-f122c38f5d37,
abstract = {{Three previously published control strategies for anaerobic digestion were implemented in Simulink/Matlab using Anaerobic Digestion Model No. 1 (ADM1) to model the biological process. The controllers' performance were then simulated and evaluated based on their responses from five different types of process scenarios i.e. start-up and steady state performance as well as disturbances from concentration, pH and ammonia in the inflow. Of the three evaluated control strategies, the extremum-seeking variable gain controller gave the best overall performance. However, a proportional feedback controller based on the pH-level, used as a reference case in the evaluation, proved to give as good results as the extremum-seeking variable gain controller but with a lower wear on the pump. It was therefore concluded that a fast proportional control of the reactor pH is a key element for optimally controlling a low-buffering anaerobic digestion process.}},
author = {{Strömberg, Sten and Possfelt, M O and Liu, Jing}},
issn = {{0273-1223}},
language = {{eng}},
number = {{3}},
pages = {{594--603}},
publisher = {{IWA Publishing}},
series = {{Water Science and Technology}},
title = {{Computer simulation of control strategies for optimal anaerobic digestion.}},
url = {{http://dx.doi.org/10.2166/wst.2012.603}},
doi = {{10.2166/wst.2012.603}},
volume = {{67}},
year = {{2013}},
}