| 摘要 |
<p>PURPOSE:To stably control the optimum tension of a looper, and to attain a rolled stock with high accuracy by designing a controller with the tension of a rolling stock, the response of the height of the looper, and a robustness designated, using in cooperation with the main motor of a rolling mill and the looper. CONSTITUTION:The variable value of a process model, weight parameter reducing a tension variation in the controlling system of the height of a looper, weight function designating the response and the robustness of a tension controlling system, weight function designating the response and the robustness of the height controlling system of the looper, etc., are calculated by a control gain arithmetic means 26, a control gain is found, and it is set in a control arithmetic means 17. Calculations are performed by the control arithmetic means 17 according to a tension target value and the target value of the height of the looper from a setting means 25, a control gain from a control gain arithmetic means 26, and a detected value from a detector. The rotational speed command value of a main machine speed control means, and that of a looper motor speed control means, are calculated. These are sent to the main machine speed control means and the looper motor speed control means.</p> |
