Experimental testing of flexible recipe control based on a hybrid model

• Published in: Control engineering practice Vol. 7; no. 10; pp. 1191 - 1208
• Main Authors: Šel, Davorka, Hvala, Nadja, Strmčnik, Stanko, Milanič, Srečko, Šuk-Lubej, Boža
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-10-1999
• Subjects: Batch control; Model-based control; Modelling; Optimisation; Process control; Modelling; Optimisation; Process control; Batch control; Model-based control
• ISSN: 0967-0661; 1873-6939
• DOI: 10.1016/S0967-0661(99)00095-7

Flexible recipe control is aimed at improving the performance of batch processes by changing the recipe parameters. Compensation is effected with the aid of the process model and optimisation. This strategy was used for the quality control of an industrial process in TiO
2 pigment production. The control algorithm was based on a hybrid model in order to use all the information about the process (knowledge, data, experience) and to design the model from a small number of real-plant experiments. When testing on the real process the algorithm was able to move the process output closer to the desired value.