TY  - JOUR
AV  - none
ID  - eprints440
TI  - Optimization-based feedback control of flatness in a cold tandem rolling
UR  - http://www.sciencedirect.com/science/article/pii/S0959152410000442
IS  - 4
KW  - Automatic flatness control; Cold tandem rolling mill; Model predictive control
EP  - 407
PB  - Elsevier
VL  - 20
SP  - 396
A1  - Bemporad, Alberto
A1  - Bernardini, Daniele
A1  - Cuzzola, Francesco Alessandro
A1  - Spinelli, Andrea
JF  - Journal of Process Control
N2  - For the problem of automatic flatness control (AFC) in cold tandem mills this paper proposes control techniques based on quadratic optimization and delay compensation. Three different strategies are presented and compared: a centralized solution based on a global quadratic programming (QP) problem that decides the commands to all the actuators, and two decentralized solutions where each actuator command is optimized locally. All schemes are based on a global exchange of information about the commands generated at the previous time step at each stand to compensate for the numerous delays present in the mill. Control algorithms are tested in simulation considering a tandem mill with five stands as a benchmark, and results are shown to demonstrate the performance of the proposed schemes.
SN  - 0959-1524
Y1  - 2010///
ER  -