基于频率映射的PMSM驱动器低直流母线电容与电感谐振抑制特征提取

For the electrolytic capacitorless permanent magnet synchronous motor drives with low dc-link inductance, the increase of the resonant frequency and the complex coupling between the grid- and dc-side currents result in the performance reduction of the active damping method. This article proposes a suppression strategy based on the feature extraction of the grid current harmonics from frequency map...