Projeto e implementação de um retificador controlado a tiristor para bancada didática de eletrônica de potência

Abstract

This work consists in designing and implementing a thyristor controlled rectifier for teaching Power Electronics. A study has been conducted of commercial solutions present in the market, which have deficiencies in relation to the purposes of the work. Due to this, it was developed a controlled thyristor rectifier and a printed circuit board (PCB), with settings that allow the student to perform different experiments and to compare obtained measurements. Initially, it is possible for students to recognize the rectifier components both in the control circuit and power, analyzing the PCB where all items are identified. Then, the students can connect the rectifier and analyze the values of output voltage and current. It is possible to modify the angle of triggering of the thyristor, varying the potentiometer value present on the PCB or programming in Arduino code. Different load configurations are also available, where students can accomplish different projects in the rectifier, since it is allowed to combine different values of inductor and resistor in order to obtain and analyze waveforms and values of voltage and current.