Sophisticated new control design methods now enable the creation of new control systems for hot-strip finishing mills, improving product quality and ensuring excellent economic performance. The benefits of integrated advanced control design may be summarised as:A completely global control design strategy eliminates the ad-hoc assembly of hot-strip mill controllers.It subsumes the existing actuator level control Strategy (classical or advanced).It incorporates, in a natural way, practical constraints across all stands of the finishing mill. This includes hard constraints, such as actuator saturation, ace soft constraints, such as rolling load.It allows global trade-offs between variables across all mill stands.It is capable of decentralisation ace can be made computationally efficient and therefore practically feasible.Advanced control design methods have the potential to create a new control design paradigm for not-Strip finishing mills, providing improved quality whilst optimizing economic performance.
Michael Grimble、Michael Johnson、Gerrit van der Molen
NSTL
