Modelling and control of coiling entry temperature using interval type-2 fuzzy logic systems

Authors: G. M. Méndez, L. Leduc-Lezama, R. Colás, G. Murillo-Perez, J. Ramirez-Cuellar, J. J. López

Source: Ironmaking & Steelmaking

Publisher: Maney Publishing

Abstract:

The set-up of the cooling water applied to the strip as it traverses the runout table in order to achieve the coiler entry temperature was made by an intelligent model implemented using interval type-2 fuzzy logic systems. The model uses as inputs the targets for coiling entry temperature, strip thickness, finish mill exit temperature and finishing mill exit speed. The experiments of this application were carried out for three different types of coil in a real hot strip mill. The results proved the feasibility of the system developed for coiler entry temperature prediction. Comparison with the online type-1 fuzzy logic based model shows that the proposed interval type-2 fuzzy logic system improves performance in coiler entry temperature prediction under the tested condition.

Document Type:

DOI: 10.1179/174328109X445624

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