| 摘要 |
<p>A resonance suppression control block (12) includes a high-pass filter (13) for extracting an alternating-current component (VdcAC) of a DC link voltage (Vdc) and a gain section (14) for outputting a correction signal (Vcmp) obtained by multiplying the alternating-current component (VdcAC) by a gain (K), and a control unit (7) controls an inverter (4) on the basis of a signal (V'*) obtained by adding the correction signal (Vcmp) to a voltage command (V*). This makes it possible to obtain a power converter which can suppress resonance of a DC link unit with a simple device and can save the labor for adjusting and resetting in accordance with a power supply frequency.</p> |
