Abstract:

Due to the complexity and high non-linearity of microbial fermentation process, it is difficult to model the process of fermentation precisely.Although there is a predictive error between traditional mechanistic model and testing result, it reflects the process of mechanism.Neural network modeling method is classified as “black box” method: the process of modeling uses no priori knowledge, and gets a good result, so single soft sensor modeling method can not have the advantages of the others.This paper uses RBF neural network and mechanistic model to model and constitutes a “cinder box” hybrid model, which is a good modeling method.