Projeto e implementação de um conversor flyback para uma bancada didática de eletrônica de potência e controle digital de sistemas

Abstract

This work presents the design and implementation of a DC-DC step-up/step-down isolated converter (Flyback), with low cost and compact for integrating an experimental platform for the courses of "Fundamentals of Power Electronics" and "Digital Control Systems", of the undergraduate course of Mechatronics Engineering. This platform is composed of a set of DC-DC converters (Buck, Boost, Buck-Boost and Flyback), a Controlled Rectifier, a board of Instrumentation and Control and a board of Gate-Driver. The purpose of this project is to obtain a full bench of Power Electronics to be enjoyed by students and teachers of the course. Commercial solutions have been researched for a brief comparison between the teaching modules available on the market and the prototype developed in this work. First, this study was validated by means of simulations in PSIM® and MATLAB® softwares. In sequence; it was performed the design of the power circuit of the converter. Finally, it was executed the design of controllers for the operation of the converter in closed-loop. The results obtained in the tests of the prototype were satisfactory and close to the results obtained in simulations. The cost of this project was estimated at R$220.30, a low cost when compared to commercial modules.