Aplicação de controle PID não linear com ganhos baseados em perfil gaussiano aplicado a um conversor Buck

Abstract

This work presents a comparative study of linear and non-linear PID control techniques (proportional, integral and derivative) applied to a step-down voltage converter in the Buck topology. The main objective of this work is to compare the performance of classical PID control and nonlinear PID control with gains based on Gaussian-shaped functions. It is an adaptive control technique based on the classical PID control, by means of a methodology in which the gains are obtained fro a Gaussian function, aiming to obtain a performance enhancement for this system. Computer simulations were performed, where a parametric sweep on the parameters for each gain (proportional , integral and derivative) were done. The achieved results verify the efficiency of the proposed tecnique.