Full Stand Modeling and Tension Control for the Hot Strip Finishing Mill
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- AHN Byoung Joon
- Department of Mechanical and Intelligent Systems Engineering, Pusan National University
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- CHOI Ju Yong
- Department of Mechanical and Intelligent Systems Engineering, Pusan National University
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- CHANG Yu Shin
- Department of Mechanical and Intelligent Systems Engineering, ERC/NSDM Pusan National University
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- LEE Man Hyung
- School of Mechanical Engineering, Pusan National University
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We describe a looper controller design for a hot strip finishing mill in steel plants. The main function of the looper system is to balance the mass flow of the strip by accumulating material in the middle of the stands. Another function is to control the strip tension which influences the width of the strip. To ensure strip quality, it is very important to control the tension of the hot strip finishing mill. However, because there is a mutual interaction between the looper angle and the strip tension, it is difficult to control the looper system. Previous researches examined only the operation of a single stand. But it is not sufficient to examine the operation and effect of whole stands because the operation is wholly interdependent. In this paper, we present a full model of the hot strip finishing mill in order to more effectively control strip tension. We propose several control methods for the full-stand hot strip finishing mill, denoted as conventional PI, PI with cross gain, and coefficient diagram method (CDM) PID control. In the real plants, there are some problems by using higher order controllers such as LQ, LQG and H∞. By comparison, the PID controller is very simple and easy to apply to all real plants. To that end, we present our findings on PID controls and their potential use in the hot strip finishing mill.
収録刊行物
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- JSME International Journal Series C Mechanical Systems, Machine Elements and Manufacturing
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JSME International Journal Series C Mechanical Systems, Machine Elements and Manufacturing 48 (4), 794-801, 2005
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390001204680123520
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- NII論文ID
- 110004826706
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- NII書誌ID
- AA11179487
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- ISSN
- 1347538X
- 13447653
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- NDL書誌ID
- 7742475
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 使用不可