Abstract

One of the main parameters affecting the surface quality of the final flat products (sheets and plates) in a steel factory is the mould-level control in the continuous casting machine. Variations in the mould-level should be reduced to only some mm for improved steel quality, a specification which is often hard to fulfill with current standard PID-control strategies. This paper introduces new approaches, based on autotuning and predictive control, to improve the mould-level regulation.

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