基于电压角谐波调节的无电解电容永磁同步电机驱动自适应拍频抑制策略

The beat phenomenon in electrolytic capacitorless permanent magnet synchronous motor (PMSM) drives is serious within field-weakening (FW) region. This article proposes an adaptive beat suppression strategy through regulating the voltage angle harmonics. By dividing the admittance in FW region into voltage sampling time-delay admittance and FW characteristic admittance, the relationship between bea...