Methodology For Robust Control Of Pressure For ?-Caprolactone Polymerization in a Twin Screw Extruder

Abstract

In this paper we present a control system based on robust control, which was developed for the regulation of the pressure gradient at the output of a die. In addition, to model the dynamics of the process, we have chosen a second order model with dead time and the identification of dynamical parameters is performed by using the Marquard-Levenberg optimization method. However, to cover the entire range of operation, we were forced to consider two models. The results of the simulation obtained with the robust control are satisfactory.

Keywords

• Identification
• Reactive extrusion
• Robust control