This application note discusses the implementation of Field-Oriented Control (FOC) for a Permanent Magnet Synchronous Motor (PMSM) using space vector pulse width modulation with two shunts each connected to each phase of the motor for current measurement. Sensored FOC operation is demonstrated using QEI sensor.
This document details the implementation of Field-Oriented Control (FOC) for a Permanent Magnet Synchronous Motor (PMSM). It utilizes Space Vector Pulse Width Modulation (SVPWM) with current measurement via two shunts per phase and position feedback using a Quadrature Encoder Interface (QEI). The guide focuses on sensored FOC operation.
The implementation uses two shunts, with each one connected to a separate phase of the motor.
The demonstration kit operates at a PWM frequency of 17.5 kHz.
The signals are converted to 12-bit values at a rate of 1.5 MHz.