TY - RPRT A1 - Bemporad, Alberto A1 - Bernardini, Daniele A1 - Cuzzola, Francesco Alessandro A1 - Spinelli, Andrea M1 - technical_report N2 - For the problem of feedback control of flatness in a cold tandem rolling this paper proposes control techniques based on quadratic optimization. Three different strategies are proposed and compared: a centralized solution based on a global 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, required by a synchronizing device that compensates for the numerous delays present in the mill. Y1 - 2007/// AV - none TI - Optimization-based feedback control of flatness in a cold tandem rolling UR - http://eprints.imtlucca.it/1007/ N1 - Technical Report No. 2007-4 ID - eprints1007 EP - 8 ER -