Robust Adaptive Control of the Mold Level in the Continuous Casting Process Using Multiple Models

Abstract-In the continuous casting of steel, mold level control is fundamental for obtaining high productivity and high quality. Using conventional methods, it is difficult to achieve both stability and performance robustness because of different classes of disturbances and parameters uncertainties in the process. This paper presents a multi-model adaptive control architecture based on the so-called RMMAC methodology. With the help of precise definition of robust performance requirements, the number of models, estimators and controllers are merely derived. More importantly, the combination of robust non-adaptive mixed-µ synthesis and stochastic hypothesis testing concepts enables controller performances prediction as well as online monitoring process parameters which could be used by operators to take corrective actions. The generated signals are likewise useful for understanding the physical phenomena in the process

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Periodic disturbances reduction in the continuous casting process by means of a modified Smith predictor

International audienc

Particle Swarm Optimization Based Tuning of a Modified Smith Predictor for Mold Level Control in Continuous Casting

International audienc

Robust adaptive control of the mold level in the continuous casting process using multiple models

International audienc

Disturbances estimation for mold level control in the continuous casting process

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Suppression of periodic disturbances in the continuous casting process

International audienc