Andreas Kugi, Kurt Schlacher, Rainer Novak,
"Non-linear Control in Rolling Mills: A new Perspective"
, in IEEE Transactions on Industry Applications, Vol. 37, Nummer 5, Seite(n) 1394-1402, 10-2001, ISSN: 0093-9994
Original Titel:
Non-linear Control in Rolling Mills: A new Perspective
Sprache des Titels:
Englisch
Original Kurzfassung:
This paper is concerned with the application of modern nonlinear control techniques to the thickness control in rolling mills. It turns out that the performance of the closed loop can be significantly improved by takinng into account the essential nonlinearities of the plant to be controlled already in the controller design. These nonlinear control strategies totally differ from the common approach of linearizing the nonlinear system around a nominal operating point because, they are not limited to a more or less small neighborhood of the operating point, but are valid all over the operating range. Practically, these nonlinear control concepts are a possible answer to the trend of modern rolling mills toward tighter thickness tolerances, thinner final strip thicknesses, faster production rates and shorter off-gauge lengths. However, a straightforward application of the well established nonlinear control theory does not always lead to a control concept that is practically feasible.It is rather unavoidable to consider all the special features and properties of the plant. By means of the gap control of a mill stand with a hydraulic positioning system we will show in detail the advantages of a nonlinear control approach. Finally, simulation and measurement results will deomnstrate the feasibility and the excellent performance of the proposed design.
Sprache der Kurzfassung:
Englisch
Journal:
IEEE Transactions on Industry Applications
Volume:
37
Number:
5
Seitenreferenz:
1394-1402
Erscheinungsmonat:
10
Erscheinungsjahr:
2001
ISSN:
0093-9994
Anzahl der Seiten:
9
Notiz zur Publikation:
Kugi A., Schlacher K., Novak R.: Nonlinear Control in Rolling Mills: A new Perspective, (Meritorious Paper), In: IEEE Transactions on Industry Applications, Vol. 37, Nr. 5, pp. 1394–1402, 2001. ISSN 0093-9994
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