Regulador de tensão para as máquinas síncronas dos laboratórios de máquinas elétricas do departamento acadêmico de eletrotécnica

Abstract

At University, the Electric Engineer student learns many concepts related to power electronics and the operation of synchronous generators. This project has as main objective the application of these concepts through a prototype of a CA-CC converter that can be the basis for a next project. Among the many existing converters, Forward was chosen because it be adapts to the chosen voltage levels. Like any project with assembly and testing steps, the final prototype was only assembled after all stages of the project were calculated and simulated. The final prototype consists of a voltage rectification step at the input that is provided by a Forward converter that has a 220 V voltage and 0.2 A current at its output, which are necessary for energizing the generator field coil. The project contains a reading system for the field current and the voltage of the generator, which is shown on a display. Connecting different currents at the generator output, the project has a control loop that acts directly at the Mosfet switching part, keeping the field generator coil energized at a constant level and with a nominal value. Due to the COVID-19 pandemic, it was not possible to carry out the final tests with the prototype connected directly to the generator, só the project was divided into sub-circuits and individual tests carried out.