Investigação de técnicas de controle para acionamento de motores Brushless utilizando a plataforma DRV8301-HC-C2-KIT

Abstract

This work presents an analysis of the application of brushless motors (BLDC) through the development and implementation of a control strategy for a 24 V motor, using the DRV8301-HC-C2 platform from Texas Instruments. The main objective was to perform the motor drive and control in a practical way, organizing the project into four main sta- ges. The first stage consisted of a theoretical review, addressing the operation of BLDC motors, the Six-Step and FIELD ORIENTED CONTROL (FOC) switching methods, as well as the study of the DRV8301-HC-C2 platform and the definition of a control strategy compatible with the microcontroller used. In the second stage, the system modeling was carried out in the Matlab/Simulink environment, aiming to simulate the behavior of the motor, the platform, and the adopted control. The third stage involved the implementa- tion of the system on a test bench, in which the TMS320F28035M was replaced by the TMS320F28069M microcontroller. The InstaSpin software was used for the implementa- tion of the drive methods directly on the DRV8301-HC-C2 platform, as well as control methods for evaluating current, speed, and other variables. Finally, in the fourth stage, the results obtained from the simulations were compared with the experimental data. The practical tests showed good consistency with the simulated results, evidencing a response with an initial variation followed by stabilization, behavior attributed to the action of the PI controller. Despite the limitations imposed by the use of InstaSpin, it was possible to validate the system operation under no-load conditions, ensuring control stability and compliance with the expected results.