Department of Systems and Control

Sip Mobil, Šempeter,
Acroni Rolling Mill, Jesenice

2001

Design and implementation of an advanced control system allowing for extended functionality of the steel-strip slitting line and operation under various conditions.

Basic control of DC drives: armature and field voltage/current control. Advanced DC drive functionality: linear speed control, jog speed control, tension control, dynamic compensation of accelerating/decelerating torque, field current reference calculation, variable coil-diameter compensation, loop level control.

The first microcomputer control of DC drives at the Cold Rolling Mill in Acroni. Replacement of the input relieving loop with specially tailored control, which ensures minimum, i.e., zero force between the uncoiler roll and the slitter roll, not only in the stationary condition but also during acceleration and deceleration, compensating the variable uncoiler roll diameter.

Extension of the production process to a new type of thin metal strips, thus resulting in increased production at Acroni.

gregor.dolanc@ijs.si