4 research outputs found
Design of Adaptive Tension Control on Tension Reel
No full textMasterThe tension reel is a device for winding strips. The outer diameter of the coil
increases continuously when the strip is wound. The dynamic characteristics of the
tension reel are a time-varying system. The tension control of the tension reel
should be precisely controlled to minimize the occurrence of slips and telescopes
between strips. When the speed of the tension reel is accelerated or decelerated,
a change in the tension occurs. This change in tension must be stabilized within a
short period of time.
The conventional fixed PID gain can not precisely control the tension of the
system which varies according to the outer diameter of the coil. Therefore, an
adaptive PID gain is required to match the change of tension reel dynamics with
the change of the outer diameter of the coil.
In this study, the tension reel control system was modeled through Matlab and
implemented similar to actual system. Throughout simulations, we confirmed the
problem of fixed PID gain during speed change
The adaptive PID gains according to the coil outer diameter were derived by
experiments. Then, the derived PID gain is expressed as a relational expression
for the coil outer diameter.
Finally, we applied the adaptive PID gain function to the Tension Reel PID
control system and confirmed that the tension control is stabilized
