Torque Ripple Optimization Research for Permanent Magnet Synchronous Motor $i_{\mathrm{d}}=0$ Control Based on STM32

This paper investigates the torque ripple suppression problem in permanent magnet synchronous motors (PMSMs) operating under id =0 control strategy. While i d =0 control offers simplicity and ease of implementation, it often results in torque ripple, which can cause undesirable vibrations and noise. To address this issue, this paper proposes a simple and effective torque ripple suppression method based on q-axis current compensation. The method involves manually calculating the q-axis current compensation for the dominant torque harmonics, effectively reducing the harmonic content in the motor's torque output. The effectiveness of this approach is verified through both MATLAB/Simulink simulations and experiments conducted on an STM32 platform. The results demonstrate a significant reduction in torque ripple, leading to smoother motor operation and improved torque output quality. This research contributes to the advancement of PMSM control strategies, particularly in applications where smooth operation and high torque quality are crucial.