Research on Permanent Magnet Synchronous Motor Drive System based on Vector Resonant Control and Resonant Pole Inverter

Due to factors such as cogging torque and inverter nonlinearity, there may be significant harmonics in the armature winding current of a permanent magnet synchronous motor(PMSM) during operation, resulting in torque fluctuations in the motor output. In order to improve the control precision of PMSM, this paper proposes a soft-switching drive system. The system improves the traditional motor drive system from two aspects: improving the control frequency of the driver and optimizing the control strategy. The experimental results show that the proposed system can effectively reduce the torque ripple of the PMSM.