Flexible Methane Production Using a Proportional Integral Controller with Simulation‐Based Soft Sensor

Autor: Niloofar Raeyatdoost, Robin Eccleston, Christian Wolf
Rok vydání: 2019
Předmět:
Zdroj: Chemical Engineering & Technology. 43:75-83
ISSN: 1521-4125
0930-7516
DOI: 10.1002/ceat.201900401
Popis: Anaerobic digestion plants have the potential to produce biogas on demand to help balance renewable energy production and energy demand by consumers. A proportional integral (PI) controller is constructed and tuned with a novel tuning method to control biogas production in an optimal manner. In this approach, the proportional part of the controller is a function of the feeding rate and system's degree of stability. To estimate the degree of stability, a simulation-based soft sensor is developed. By means of the PI controller, the requirement for gas storage capacity of the digester is reduced by approximately 30 % compared to a constant, continuous feeding regime of the digester.
Databáze: OpenAIRE