Title:
MULTIVARIABLE CONTROLLER FOR LOOPER
Document Type and Number:
Japanese Patent JP3041134
Kind Code:
B2
Abstract:
PURPOSE: To control a looper height and the tension of a rolled stock to be under the optimum condition by calculating command values for rotary speeds of a rolling mill driving main motor and a looper driving motor in a control system wherein an interference system of the looper height and the tension between rolled stock stands is processed as a model to control the interference system.
CONSTITUTION: The model to control an interference system composed of the looper height 4 between stands 2, 3 and the tension of the rolled stock 1 as multivariable system is made up. A command value of each element is calculated, a correspondent variable between the elements is set by a means 15 and control gain is calculated by a means 14 in accordance with that set value. The command values for rotary speeds of a rolling mill driving main motor 11 and a looper driving motor 7 are calculated by an arithmetic controller 13 so that the looper height and the tension of the rolled stock follows up the command value by using the obtained gain and the respective motors are controlled by a main machine speed controlling means 12 and a controller 9 based on this command value.
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Inventors:
Hiroyuki Imanari
Application Number:
JP14297492A
Publication Date:
May 15, 2000
Filing Date:
June 03, 1992
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
B21B37/00; B21B37/50; G05B13/02; G05B13/04; (IPC1-7): B21B37/50; B21B37/00
Domestic Patent References:
| JP62118911A |
Attorney, Agent or Firm:
Kazuo Sato (3 others)