基于脉冲模式控制的低载波比双三相永磁同步电机转矩脉动优化

Aiming at mitigating the torque ripple at low-carrier-ratio operating conditions, an optimal pulsewidth modulation (PWM) scheme is proposed for the dual three-phase permanent-magnet synchronous motor (DTP-PMSM). The current trajectory induced by inverter harmonic voltages on the torque subspace is derived and the model of torque ripple is established. Then, the switching angles are optimized offli...