| 摘要 |
In an auto-sequential commutated current source inverter (ASCI) system, an auxiliary bridge of thyristors is connected between auxiliary terminals, and a capacitor is charged and discharged resonantly by controlling a corresponding auxiliary thyristor of the bridge to connect the capacitor between the DC terminals and the AC terminals through the bridge in order to charge the capacitor at a precommutation level, whereby commutation of a main thyristor is effected at a reduced peak voltage, and no voltage clamp measure is necessary.
|
