Grid Current Harmonic Suppression in Low-Line Inductance Electrolytic-Capacitor-Free PMSM Drives via Frequency-Selective Enhanced ADRC
Low-line-inductance electrolytic-capacitor-free drive systems are expected to further exploit the advantages of power density and cost. However, this design makes grid current harmonics more difficult to suppress and compromises system stability, particularly under unbalanced grid voltages. To address this issue, this...