Active Vibration and Flatness Control of a Strip in a Continuous Galvanizing Line using Positive Position Feedback Control
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概要
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In this paper, we propose active vibration control of a strip in a continuous galvanizing line (CGL) using positive position feedback (PPF) control. The control system includes five pairs of electromagnetic actuators and controllers. First, the overall system was modeled using the three-dimensional finite element modeling (FEM) package ANSYS. The Krylov subspace technique was then used to reduce the order of the model. Finally, PPF control was applied to control the vibration. The stability condition was derived from the stiffness matrix concept, which shows the relationship between the DC gain of the controller and that of the system. Root locus analysis was performed to validate the stability condition derived. The results of the software simulations and the experiments demonstrate the effectiveness of the proposed controller under various tension conditions.
著者
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Won Sangchul
Department Of Electrical Engineering Pohang University Of Science And Technology
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JANG Yu
Department of Information & Communication Engineering, Dongguk University
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WON Sangchul
Department of Electronic & Electrical Engineering, Pohang University of Science and Technology
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Lim Seungho
Engineering Research Center, POSCO
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Jung Wonchul
Control and Automation Laboratory, Graduate Institute of Ferrous Technology, Pohang University of Science and Technology
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