| 摘要 |
<p>A power converter (10), control apparatus (20) and methods (100) are presented for driving a permanent magnet motor or other load (6) through a sine wave filter (16) and a transformer (18), in which inverter output current (IA, IB, IC) is controlled using a current-frequency relationship (24) to convert a desired frequency or speed value (21, 31) to a current setpoint (32), and the inverter output current (IA, IB, IC) is regulated using a control algorithm (26) with a bandwidth below the resonant frequency of the sine wave filter (16).</p> |
