Diseño, simulación y comparación entre un controlador PID fraccional con respecto a un controlador PID clásico, en procesos con grandes retardos

Abstract

This paper presents the design, analysis and comparison of the Fractional Order PID control (FOPID) with a classic (whole-order) PID, for the purpose of this investigation two non-linear plants that have dominant delay were used: a CSTR reactor with fixed delay and a mixing tank with variable delay that maintains the controllability of the high system, in which you can see the benefits that the FOPID presents before processes that have high delays, not being the only application in which this type of controller. The control schemes that were designed were tested by adding disturbances in each plant, verifying that each control system maintains the response in the reference that has been placed at the entrance. Adjustments were made in the controllers to improve their performance, losing speed of the response to gain robustness and the control techniques are compared by the results of the ISE index, overshoot and establishment time.