Uso de informação a priori para identificação de um processo de neutralização de Ph em malha fechada

Abstract

A procedure that uses new techniques to model closed-loop nonlinear dynamical system is proposed. It consists of introducing a priori information in the estimation of the parameters of NARX (Nonlinear AutoRegressive models with eXogeneous inputs) models. The PH neutralization process is used as an example. The reason for proposing the methodology is the di_culty of performing open-loop tests in real systems. The results of the proposed methodology show that the performance of the identified model is improved when the static curve of PH process is used as indicated in this work.