PERIODIC DISTURBANCES REDUCTION IN THE CONTINUOUS CASTING PROCESS BY MEANS OF A MODIFIED SMITH PREDICTOR

Karim Jabri, Alain Mouchette, Bertrand Bèle, Emmanual Godoy, Didier Dumur

2009

Abstract

In the continuous casting process, various control strategies are used to reduce the mold level fluctuations which cause surface defects in the final product. This paper proposes a control structure able to improve the reduction of the bulging effect on the mold level. It is based on the Aström’s modified Smith predictor scheme which presents the advantage that the setpoint response is decoupled from the disturbance rejection transfer function. control theory is utilized to develop the controller of this second loop. Both the disturbances rejection and the robust stabilization are considered in this design. Effective tuning rules are also given. Simulation results confirm that the proposed design is more effective than the one based on the PID control law currently implemented in several real plants.

Paper Citation

in Harvard Style

Jabri K., Mouchette A., Bèle B., Godoy E. and Dumur D. (2009). PERIODIC DISTURBANCES REDUCTION IN THE CONTINUOUS CASTING PROCESS BY MEANS OF A MODIFIED SMITH PREDICTOR . In Proceedings of the 6th International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO, ISBN 978-989-674-001-6, pages 110-115. DOI: 10.5220/0002206901100115

in Bibtex Style

@conference{icinco09,
author={Karim Jabri and Alain Mouchette and Bertrand Bèle and Emmanual Godoy and Didier Dumur},
title={PERIODIC DISTURBANCES REDUCTION IN THE CONTINUOUS CASTING PROCESS BY MEANS OF A MODIFIED SMITH PREDICTOR},
booktitle={Proceedings of the 6th International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO,},
year={2009},
pages={110-115},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002206901100115},
isbn={978-989-674-001-6},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 6th International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO,
TI - PERIODIC DISTURBANCES REDUCTION IN THE CONTINUOUS CASTING PROCESS BY MEANS OF A MODIFIED SMITH PREDICTOR
SN - 978-989-674-001-6
AU - Jabri K.
AU - Mouchette A.
AU - Bèle B.
AU - Godoy E.
AU - Dumur D.
PY - 2009
SP - 110
EP - 115
DO - 10.5220/0002206901100115