Project Summary
Our project will be a motor controller for a 4 kilowatt 3-phase AC, where we will be implementing sensorless Field-Oriented Control (FOC). The controller will implement three half-bridge phases, each with voltage sense, current sense, and two MOSFET legs. There will be 3 major steps in the control pipeline: sensing phase currents and voltages, estimating the position and speed of the motor, and then creating a command to the three phases to modify the motor’s state in the desired way. A power board will contain gate drivers, DC link capacitors, and other power electronic components. We will have a separate control board with a STM32 microcontroller, where we will implement our sensorless FOC firmware.