NDLI: Pointwise linear quadratic optimal control of a tandem cold rolling mill

Content Provider	IEEE Xplore Digital Library
Author	Pittner, J. Simaan, M.A.
Copyright Year	2004
Description	Author affiliation: Dept. of Electr. Eng., Pittsburgh Univ., PA, USA (Pittner, J.; Simaan, M.A.)
Abstract	The tandem cold rolling of metal strip is a complex nonlinear multivariable process whose optimization presents significant challenges to the control design. Existing systems using the present technology are limited in their capability for improvement in performance and robustness and therefore the need arises for a better approach. It is considered that a pointwise linear quadratic optimal control might fulfill this need. This paper presents the results of work performed to investigate the theoretical and applied aspects of this technique for control of a tandem cold rolling mill. In this paper nonlinear state space equations are derived from a mathematical model of the mill, and a pointwise linear quadratic optimal controller is developed. The controller when coupled to the model is shown by simulation of typical operating conditions to be effective in reducing the effects of disturbances in entry strip thickness and hardness.
Starting Page	903
Ending Page	910
File Size	427178
Page Count	8
File Format	PDF
ISBN	0780384865
ISSN	01972618
DOI	10.1109/IAS.2004.1348520
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-10-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Strips Nonlinear equations Control design Optimal control Robustness State-space methods Mathematical model Milling machines Design optimization Thickness control
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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