| 摘要 |
<p>PURPOSE:To improve remarkably controlling accuracy by eliminating the mutual interference between a sheet thickness controlling system and a reel controlling one or between adjoining stands in case of controlling the sheet thickness and the material tension, in a rolling installation containing winding and rewinding reels. CONSTITUTION:In a single stand mill contolling system 10 containing a reel controlling system indicated by a real line; three inputs of the changing quantity DELTAhr of sheet thickness and the changing quantities DELTAsigmaF<gamma>, DELTAsigmaB<gamma> of material tensions at the inlet and outlet sides, and three outputs of the variation DELTAh of sheet thickness at the outlet side and the variations DELTAsigmaF, DELTAsigmaB of tensions at the inlet and outlet sides are used, for instance. A main controller 20 consists of commanding units 21-23 for controlling the sheet thickness, the outlet tension, and the inlet one; and for instance, the commanding unit 21 outputs a sheet thickness controlling command by inputting the deviation between the DELTAh to be fedback and a target value of sheet thickness. For performing the control in this state; for manipulated variables corrected basing each on one control variable, non-interacting compensatory factors C11-13, C21-23, C31-33 obtained from coil parameters of a mill and winding and rewinding reels are added to respective output- controlling system for the other two control systems.</p> |
