| 摘要 |
<p>PURPOSE:To execute interstand tension control which generates no offset, even if disturbance is large and a target tension value is changed, by keeping a looper angle between continuous rolling mills constant, and executing integral state feedback control. CONSTITUTION:In a rolling device provided with a looper device 3 between a front stage stand 1 and a rear stage stand 2 of a continuous rolling mill, on a looper 3, a torque controller 13 of the looper is provided, and to both stands 1, 2, mill speed controllers 11, 12 are set, respectively. Also, a control reference value, an equipment constant, etc. in the stationary state are inputted in advance to a tensin controller 21. When rolling, the interstand tension is controlled by correcting an angle deviation of the looper 3, an angular velocity deviation, an interstand tension deviation, an interstand speed deviation, a looper angle deviation integral value, and an interstand tension deviation integral value, as state vriable vectors, and a looper torque target value and a main motor speed target value, as operation vectors, along a kinematic equation of a tension controlling system, and secondary format appreciating index minimization.</p> |
