Desenvolvimento e implementação de sistema de acionamento de máquina de corrente contínua sem escovas para aplicação em veículo de competição

Abstract

The main objective of this work is to develop and implement a brushless DC machine drive system for a kart with electric propulsion. In order for the project to be applicable, the main items required for its operation are highlighted, such as: power source, electronic drive, and the electric machine. In addition, the digital and instrumentation part for vehicle control and telemetry is also addressed. In the first moment, the electric machine data was acquired by means of tests and computer simulations were performed with different control systems for the inverter circuit, aiming to understand the system's behavior and verify the most adequate one. Subsequently, the necessary components were determined and the electronic circuit schematic was assembled. Besides this, the costs of the pre-selected components were analyzed, and at the end, a telemetry system for the vehicle was created. The collected results revealed values and waveforms similar to those found in the bibliography. Also, the implemented drive system was able to control the speed and direction of rotation of the DC machine according to the pilot's wishes. Finally, discussions about the results are held, and suggestions for future work are also given. [resumo fornecido pelo autor]