Controle vetorial para aplicações com controle de torque para motor síncrono de ímãs permanentes

Abstract

This work presents and applies a technique for torque vector control for a permanent magnet synchronous motor. To implement this technique, firstly, the dynamic modeling of the engine was performed, using the Park transform, and its behavior in open and closed loops was verified. For the numerical resolution of the model in state space, the Euler method was used. The simulations carried out to study the technique were carried out using the Matlab software. A printed circuit board was made and the STM32F411CEU6 microcontroller configured with it to carry out the implementation and tests of the bench control, in order to visualize the real behavior of the system and verify if the proposed model is valid. The application of the control technique was performed in a motor with a nominal power of 785 Watts coupled to a magnetic brake and with a reference torque in the form of a ramp adjusted to 0,6 N.m. It was observed that the motor torque follows the reference with zero error in regime and even with the addition or reduction of viscous friction, the torque continued following its reference. It was found that the current and voltage variables have the same dynamics as the proposed torque ramp and the peaks in the initial moments are smaller when compared to the behavior in open loop.