DCS Control System Research Of Penicillin Fermentation Process

Penicillin fermentation process is a highly nonlinear, time-varying and complex correlation of biological processes. For the fermentation process parameter measurement, operation monitoring, automatic control, becomes the key issue in the optimization of fermentation production management and automation. FM802 controller based on hollysys MACSV system for fermentation temperature, pressure, flow, pH value, dissolved oxygen, data acquisition, processing, operation and its parameters, such as exchange, through the PC to the controller algorithm to generate the configuration(Codesys) complete the programming of the controller, and made in PC and display large tank parameters can in general appearance, general appearance, the loading picture and operations such as history curve, alarm, picture, for the design of penicillin fermentation control system scheme. Penicillin fermentation is bacteria under certain conditions using a variety of nutrients through the effects of the enzyme itself synthesis. Filling capacity control is a key in the penicillin fermentation process, the current control can only to some external parameters(such as temperature, pressure tank, air flow, etc.) a simple control, and to play a key role in the process of production control filling capacity is more is to rely on human experience. Based on the analysis of a large number of domestic and foreign literature after partial filling material for penicillin fermentation process optimization control problem, puts forward the design of fuzzy controller design method of controlling the amount of carbohydrate supplement. Select deviation E and specific growth rate than the growth rate of deviation change rate EC as input, the sugar rate variation w as the output fuzzy controller is designed, with MATLAB simulation tools to control the amount of carbohydrate supplement simulation.