Abstract
Introduction of advanced control has provided improvements in product quality and production efficiency in the petrochemical field. In batch processes, applying advanced control is difficult because of the complicated recipes and the generally limited production. This paper presents a design method for a temperature control system using Generic Model Control (GMC) for batch reactor temperature control. Although the conventional GMC algorithm has a position form, the present algorithm was given a velocity form for simpler implementation. Moreover, a new compensation term regarding the thermometer position was proposed. A correspondence formula between GMC tuning parameters and the conventional PID was derived. To verify its validity, an examination using actual liquids was carried out in a polymerization reaction plant. As a result, compared with an established PID control, GMC was found to be suitable for variation control of reaction temperature deviation, and to be robust to process characteristic changes in accordance with advances of batch recipes.
