Sheikus A. Automatic control of optimal static modes of rectification processes with the use of mobile control actions

The thesis presents the solution of the actual scientific problem of development of method of automatic control of optimal static modes of rectification processes with the use of mobile control actions, as well as the improvement of mathematical model and algorithms required for its implementation. The mathematical model of the process of multicomponent rectification considering discrete and continuous mobile control actions on the process was developed. Modification of theta-method of calculation of static characteristics of the process was carried out; the technique of parametric identification of model was offered. The technological features were researched and the method of automatic control of optimal static modes of rectification processes with the use of mobile control actions was developed. The method provides for the calculation of optimal values of traditional and mobile control actions on the process according to normalized optimization criterion that enables to enhance the productivity and energy efficiency of rectification column. The mathematical model and algorithms required for implementation of method of automatic control of optimum static modes of rectification processes with the use of mobile control actions were developed. It has been proved that the use of method enables to increase the yield of target product up to 5%, and to reduce heat consumption in the evaporator of the cube up to 8% concurrently.