PROCESS MODEL PREDICTIVE CONTROL SYSTEM AND METHOD FOR PROMOTING PRODUCTION OF ANAEROBIC DIGESTION GAS

摘要

The present invention relates to a process model predictive control system and a method for promoting the production of an anaerobic digestion gas. The process model predictive control system for promoting the production of an anaerobic digestion gas, according to the present invention, employs the ADM1 model proposed by the International Water Association (IWA) as an anaerobic digestion model for predicting an amount of a generated digestion gas. The process model predictive control system for promoting the production of an anaerobic digestion gas comprises an optimization module having a function of compensating an error between an actual value and a predicted value in order to improve prediction reliability of the digestion model and having a scenario analysis function of autonomously diagnosing an increase or decrease in the amount of generated anaerobic digestion gas and deriving an inflow rate at a satisfactory anaerobic digestion gas generation level and a quantitative operating condition for application of a microbial promoter. The present invention can derive operating conditions that are necessary to reliably operate an anaerobic digestion facility and maintain a reference value of a generated digestion gas amount set by an operator or a generated digestion gas amount that satisfies history information on a gas generation amount of a past period, and provide the operating conditions to a unskilled operator or an operator who needs objective information for decision making in real time. Therefore, the present invention is very useful for the operation of an anaerobic digestion facility using organic waste resources.