Non Interacting Multivariable Paper Machine Headbox Control: Some Comparisons with Classical Loops

Abstract A non interacting multivariable papermachine headbox control is discussed and compared with some classical loops. The control design is based on quadratic optimization criterion with a discrete state variable process model. Two reference models are used in this control structure : Tracking model and Perturbation model. Integrators have not been used to remove steady state error. Different results are obtained on an experimental headbox, controlled by a process control computer.