| 摘要 |
A synchronous and bi-directional power conversion module ( 140 ) for use in a variable frequency power conversion system ( 100 ) comprises a first input/output side ( 142 ) for AC power input/output and DC power source input; a second input/output side ( 144 ) for DC link connection; and an active power switching arrangement (Q 1 -Q 6 ), which is controlled by a gating pattern to perform multi-mode power conversion. The active power switching arrangement (Q 1 -Q 6 ) is controlled to convert DC link voltage from the DC link connection ( 144 ) to an AC load supply voltage during a forward power mode; convert AC input power from the first input/output side ( 142 ) to a regulated DC link voltage during an AC source input, reverse power mode; and convert DC input power from the first input/output to a regulated DC link voltage during a DC source input, reverse power mode.
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