E3S Web Conf.
Volume 93, 20192018 International Conference on Green Energy and Environment Engineering (CGEEE 2018)
|Number of page(s)||5|
|Section||Energy Science and Engineering|
|Published online||17 April 2019|
Sliding mode control of biogas production by anaerobic digestion with addition of acetate
Institute of Robotics, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 2, P.O.Box 79, Sofia 1113, Bulgaria
Biogas production by anaerobic digestion with addition of acetate is considered. Sliding mode control for regulation of the biogas flow rate using the addition of acetate as a control action is proposed. The control design is carried out with direct use of nonlinear model and expert knowledge. Chattering phenomena are avoided by realizing the sliding mode with respect to the control input derivative. The state variables, external disturbance, process output and control input are varied in the known intervals. The performance of the designed sliding mode control is investigated by varying the process set point and the uncertain process parameter, which reflecting the influence of the external disturbance. The excellent performance of presented control is proved through simulation investigations in MATLAB using Simulink.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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