Diseño y simulación de esquemas de control tipo PID y Control por Modo Deslizante, que trabajan en la Región Factible de Operación (OFR) aplicado a un destilador flash.

Abstract

The purpose of this work is to develop PID and Sliding Mode Control schemes (SMC), which operate both at the design point and throughout the Operation Feasible Region (OFR), applied to a flash distiller modeled with Phenomenological Based Semi-Physical Modeling (PBSM) as a useful tool in the design, control and optimization of this process. All this to avoid the biggest problem of the flash distiller, its recurrent restart due to temperature disturbances in the food flow. A description of the obtaining of model (PBSM) is presented as a useful tool to predict pressure inside the tank, concentration of Propylene Glycol (PG) and liquid level, in the distiller, which is widely used in the chemical process industry. The control schemes proposed working on one point of operation and on OFR in the face of temperature disturbances are put to the test, finally the conclusions are presented.