NDLI: Looper H-infinity control for hot strip mills

Content Provider	IEEE Xplore Digital Library
Author	Imanari, H. Morimatsu, Y. Sekiguchi, K. Ezure, H. Matuoka, R. Tokuda, A. Otobe, H.
Copyright Year	1995
Description	Author affiliation: Toshiba Corp., Tokyo, Japan (Imanari, H.; Morimatsu, Y.; Sekiguchi, K.; Ezure, H.)
Abstract	The H-infinity control theory has been applied to some engineering fields including the steel making process. The H-infinity control theory makes it possible to apply multivariable control with frequency domain design method and to get robust stable control systems. The author developed a looper H-infinity multivariable control system for hot strip finishing mills, and have obtained better results than conventional control methods. The looper control is one of the most important control methods in hot strip mills. The loopers are placed between each rolling stand, and control the interstand strip tension. It is very important to control stably both looper and strip tension at each of their target values. Especially, the authors intended to reduce strip tension fluctuation than looper angle fluctuation, because strip tension severely affects thickness and width gage. This paper presents the design method of the looper H-infinity control system. Also showing some actual control data, they compare the performance of conventional PI control, noninteractive control, and H-infinity control.
Starting Page	2133
Ending Page	2139
File Size	516022
Page Count	7
File Format	PDF
ISBN	0780330080
ISSN	01972618
DOI	10.1109/IAS.1995.530574
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-10-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robust control Strips Fluctuations Design methodology H infinity control Control systems Control theory Steel Frequency domain analysis Milling machines
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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