Liye Zhu, Tihua Wu, and Yuan Fang, Measurement and AFPS control of molten steel level in strip casting, J. Univ. Sci. Technol. Beijing, 12(2005), No. 1, pp. 16-22.
Cite this article as:
Liye Zhu, Tihua Wu, and Yuan Fang, Measurement and AFPS control of molten steel level in strip casting, J. Univ. Sci. Technol. Beijing, 12(2005), No. 1, pp. 16-22.
Liye Zhu, Tihua Wu, and Yuan Fang, Measurement and AFPS control of molten steel level in strip casting, J. Univ. Sci. Technol. Beijing, 12(2005), No. 1, pp. 16-22.
Citation:
Liye Zhu, Tihua Wu, and Yuan Fang, Measurement and AFPS control of molten steel level in strip casting, J. Univ. Sci. Technol. Beijing, 12(2005), No. 1, pp. 16-22.
The measurement and control of the molten steel level are studied, which affect the quality of strip surface in strip casting.A system of molten steel measurement with a CCD (Charge Coupled Devices) sensor is designed, real-time measured data are given and its precision is analyzed. The level fluctuation model is derived, and an adaptive fuzzy-PID controller with supervisory control (AFPS) is proposed. The stability of the system is proved using Lyapunov theorem, and the simulation results are given when the model, the casting speed and the roll gap change. It is suggested that this kind of coupled nonlinear and time varying system is stable and robust using the designed AFPS controller.
The measurement and control of the molten steel level are studied, which affect the quality of strip surface in strip casting.A system of molten steel measurement with a CCD (Charge Coupled Devices) sensor is designed, real-time measured data are given and its precision is analyzed. The level fluctuation model is derived, and an adaptive fuzzy-PID controller with supervisory control (AFPS) is proposed. The stability of the system is proved using Lyapunov theorem, and the simulation results are given when the model, the casting speed and the roll gap change. It is suggested that this kind of coupled nonlinear and time varying system is stable and robust using the designed AFPS controller.
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