基于多端口阻抗优化的无电解电容永磁同步电机驱动谐波抑制策略

Active damping strategies are commonly used for grid current harmonic suppression in electrolytic capacitorless motor drives. However, they lead to the increase of motor harmonics. In this letter, a multiport-impedance-optimization-based harmonic suppression strategy is proposed, which considers both grid current and motor current harmonics. A multiport impedance model is constructed, in which the...