Gerasymenko T. Automated control of malt drying apparatus in the class of non-stationary systems

The thesis is dedication to increasing the efficiency of the drying process of malt in the class of non-stationary systems and providing a range of quality dried malt and reduce energy costs. There was conducted the analysis of the control object, methods and models, that are used in the control of process of drying malt. The was developed the mathematical model that describes the process of drying malt. There was done a statistical analysis of technological variables on the basis of experimental data. Carried the identification of process of malt drying based on neuro-fuzzy technology of modeling and assessment of non-stationary mathematical models with variable coefficients (the value of the coefficients meet certain intervals quasistationarity -1.5-2 hours), which enables to use of spreadsheet control. There was done a parametric identification of malt drying apparatus on the basis of metod of the theory of sensitivity which allows to evaluate variation of parameters dictated by non- stationarity. For the carring out of the diagnosis of passage process is suggested to use control cards Hotelling and Shuharta that allow early on to detect the deviations from the passage of the technologic process and the introduction of corrective actions: change the parameters of the regulator, change the regulator of the task or change the law regulation, in order to eliminate them. Developed the structure of automated control of shaft type of malt drying apparatus in which algorithms of adaptive control are implemented on the basis on fuzzy logic.