Benchmarking for process control with applications in the hot strip finishing steel mill

This paper describes how new benchmarking concepts can be applied to different aspects of process control performance assessment. Three general levels of benchmarking concepts for process and industrial control applications are introduced and defined: economic process, technical process and control loop benchmarking. The concepts of technical process and control loop benchmarking are demonstrated using the finishing mill in the hot strip steel rolling process. The example for technical process benchmarking is that of the control of load distribution on a hotstrip finishing mill. The example for control loop benchmarking is the multivariable control of the interstand looper in the finishing mill.