NDLI: MIMO system identification of a slab reheating furnace

Content Provider	IEEE Xplore Digital Library
Author	Kusters, A. van Ditzhuijzen, G.A.J.M.
Copyright Year	1994
Description	Author affiliation: Dept. of Rolling Mills & Autom., Hoogovens Tech. Services I&S B.V., Ijmuiden, Netherlands (Kusters, A.; van Ditzhuijzen, G.A.J.M.)
Abstract	This paper describes an application of a multivariable system identification procedure to estimate the parameters of a dynamic model for a walking beam type reheating furnace at the Hoogovens' hot strip mill. The new control philosophy based on actual slab temperatures requires a different controller design by developing a black box model using multivariable system identification (MIMO). Practical knowledge of the furnace process and a priori knowledge of physical properties of heating processes are combined to choose a simple model structure, identical per tracking zone-i.e. a combination of a top and bottom burner zone. During several sessions, data from the process were collected and analysed. Using a multivariable parameter estimation procedure, the ARX method, the parameters per zone were estimated. Due to the mainly horizontal heat flow through the furnace, the structure could be chosen in such a way that by connecting the input/output of the individual zone models, a complete furnace model was obtained. This rather simple dynamic model proved to give a good representation of the temperature characteristics in the furnace.<>
Starting Page	1557
Ending Page	1563
File Size	537481
Page Count	7
File Format	PDF
ISBN	0780318722
DOI	10.1109/CCA.1994.381484
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-08-24
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Metals industry Furnaces Multivariable systems Parameter estimation Temperature control
Content Type	Text
Resource Type	Article

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