基于虚拟导纳重塑的永磁同步电机驱动直流母线电容纹波电流抑制策略

In single-phase input permanent magnet synchronous motor (PMSM) drives, the dc-link electrolytic capacitors exhibit low tolerance to second-harmonic ripple current (SHRC). This limitation hinders further enhancements in system reliability and power density. Therefore, a ripple current suppression strategy of dc-link capacitors based on virtual admittance reshaping is proposed. The second-harmonic ...