| Abstract [eng] |
The final master's project analyzes the methane tank system, in which the anaerobic process of biological wastewater treatment is carried out. The efficiency of the biogas production process in the methane tank significantly depends on the temperature of the decomposed sludge, which needs to be maintained at an optimal level during the bioprocess. In this work, an adaptive control system of methane tank was proposed. This system evaluates the dependence of the dynamic properties of the controlled process on the external influences interfering with the process, and adapts the regulator debugging parameters to the changing process status. The gain scheduling method is used for the adaptation of the regulator parameters. Calculations in the project and research of the control systems operation were performed using MATLAB/SIMULINK software package. A mathematical model of the methane tank status is used to develop control system algorithms and to research the operation of the system. The research of the dynamic properties of the controlled process was performed by modeling and based on the results of the study, the regulator adaptation algorithms were developed. The results of the adaptive control system operation research are presented in the final project. These results were obtained by compensating the interfering effects over the wide ranges of volumetric flow of in-flowing sludge and temperature. The performance quality indicators of the adaptive system are compared to the indicators of the normal, constantly harmonized management system. |
