Model Based Approach for Online Monitoring of Aluminium Production Process

Model Based Approach for Online Monitoring of Aluminium Production Process: This article presents a novel approach for estimating on line alumina concentration and the anode-cathode distance (ACD) in a regular aluminium-reduction pot cell using a Linear Kalman Filter. This is done by using an appropriate dynamical model for the pot, which is obtained by combining the first principle modelling and experimental identification of alumina concentration behaviour from irregular sampled data. Moreover, a dynamical model for the pot resistance is identified as a function of the alumina concentration and ACD data. The proposed approach is validated on an industrial platform.