Applications of fuzzy logic in continuous casting

Authors:
Gelu Ovidiu Tirian;Camelia Bretotean Pinca;Daniela Cristea;Marcel Topor
Affiliations:
Department of Electrotechnical Engineering and Industrial Informatics, "Politechnica" University of Timisoara, Hunedoara, Romania;Department of Engineering and Management, "Politechnica" University of Timisoara, Hunedoara, Romania;NWCON Technology Consulting GmbH, Germany;Department of Electrotechnical Engineering and Industrial Informatics, "Politechnica" University of Timisoara, Hunedoara, Romania
Venue:
WSEAS Transactions on Systems and Control
Year:
2010

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Abstract

In the process of continuous casting, the melted steel from the melting pot is passed, through the intermediary of the distributor, in the water-cooled crystallizer tank. In this way, a crust forms here which is solidified at the exterior, and one of the great problems is its cracking or even it's tearing, due to several factors. Our paper describes a new control method we should use during the continuous casting. This method is based on the fuzzy logic, in order to avoid any crack inside the crystallizing apparatus. This method contains two fuzzy controllers which, based on a set of rules established with the help of the mathematical model to the crust solidification process of the semi-product inside the crystallizing apparatus and uses the experience of human experts, requires changes of the casting speed value and the primary cooling water flow.