Design and Implementation of FOC based Controller for Effective Reduction of Torque Ripples in PMSM Motor

The design and implementation of a FOC based speed controller for a three-phase PMSM, aiming to effectively reduce rotor torque ripple. To accomplish efficient motor control, the system makes use of an STM32F401RE microcontroller, the 30-amp ESC, the ACS712 voltage and current sensors, and a TCRT IR sensor. With the use of d-q plane current control, the FOC algorithm makes it possible to independently regulate torque and flux, which leads to more efficient and smoother operation. The STM32 Programmable Motor Control Workbench was used to build the implementation, and hardware testing was used to verify it. The suggested FOC approach considerably lowers torque ripple, increases speed stability, and improves the motor's dynamic responsiveness as compared to conventional six-step commutation. Because of this, the work fit for high-performance applications including industrial automation, EVs, and robotics.