Advanced Control Strategy for Stock Preparation System

T. Kokko, P. Lautala, E. Ilmoniemi, and T. Huhtelin (Finland)


: Process control, simulation, modelling, stock preparation, feedforward control


: An advanced control strategy is proposed to minimise process volume of the stock preparation system. Two alternative process and control designs are presented and their performances in terms of disturbance attenuation are investigated by simulation. The objective of the simulations is to find out whether it is possible to compensate process disturbances actively by an advanced control strategy instead of using large process volumes for disturbance attenuation. A process model library for modelling processes of the pulp and paper industry is described and a simple equation for the buffer chest dimensioning is derived.

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