| 摘要 |
<p>An electric vehicle control device including a collector (1) for extracting power from an overhead wire and a circuit breaker (2) for breaking the power. The power includes first AC power in AC power source zone and first DC power in DC power source zone. The device also includes a changeover device (3) for changing over the power to apply the first AC power to an AC side or the first DC power to a DC side, a transformer (4) connected to the AC side of the changeover device for transforming the first AC power into second AC power, a first opening/closing device (14), a power converter (15) for converting the second AC power to second DC power and an inverter (16) for converting the second DC power into third AC power. The third AC power is supplied to drive an electric motor (10). The device further includes a second opening/closing device (17), a filter inductor (18) and a filter capacitor (19) connected between positive and negative terminals of the DC input side of the inverter (16). Whereby during operation in the AC power source zone the first opening/closing device (14) is closed and the second opening/closing device is opened (17), while during operation in the DC power source zone the first opening/closing device (14) is opened and the second opening/closing device (17) is closed. <IMAGE></p> |
