CONTROL OF MULTIPASS PROCESSES USING 2-D SYSTEM THEORY.

Recently it was shown that linear multipass processes fit quite naturally in the framework of 2-D systems theory. Multipass processes include metal rolling, longwall coal cutting, automatic ploughing, machining of metals and vehicle convoys. It is shown how to characterize coefficient assignment for 2-D systems. An application of this would be to metal rolling processes where, for example, one wants to track an input (the desired thickness of the metal on each pass). By proper use of coefficient assignment one can design a tracking system for such processes. The equations that model a metal rolling process are given.