Interpolated Control of Looper Hight for Hot Strip Mills
نویسندگان
چکیده
منابع مشابه
Nonlinear Control of the Interstand Looper in Hot Strip Mills: a Backstepping Approach
A hot strip mill for the production of steel is a complex process where nonlinear dynamic phenomena occur and many control loops need to be tuned taking into account their interference. The control problem of the interstand tension and looper arm position is addressed in this paper. With respect to the conventional PID control approach, our investigation aims at exploiting nonlinear control tec...
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The development of an innovative controller for looper and tension control in hot strip finishing mills is traced based on the combination of H∞ and ISMC (integral sliding mode control) approaches. First, an H∞ controller is designed to robustly attenuate the unmatched disturbances in the angle and tension loops. Then, ISMC is used to overcome the matched disturbances in the actuators which gua...
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TThis paper gives a design method for a model predictive control (MPC) approach based on a unified performance index throughout the start-up phase tension and looper control which consists of the non-contact and contact modes in order to suppress the deviation of the strip tension while the looper contacts with the strip as quickly as possible. We will formulate the control problem by using a M...
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This paper presents a design procedure of the ARHC(Adaptive Receding Horizon Control) of the looper-tension controller in hot strip finishing mill. The controller is applied to satisfy the constraints of the control input and attenuate the disturbance of the actuator. The system matrices of the looper model are periodically updated during online simulation. Moreover the closed loop stability of...
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A key determinant of the quality of hot-rolled strip is mechanical properties lying within the tolerance range. Traditionally, this is done by testing samples which is costly, time-consuming and ties up stock awaiting test results. An alternative is given by MicroStructureMonitor, a computer model-based system which calculates the required quality parameters rather than measuring them and addit...
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ژورنال
عنوان ژورنال: Transactions of the Institute of Systems, Control and Information Engineers
سال: 1996
ISSN: 1342-5668,2185-811X
DOI: 10.5687/iscie.9.548