| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an auxiliary power supply device for a vehicle capable of suppressing a fluctuation in output power as a device.SOLUTION: The auxiliary power supply device for a vehicle in an embodiment comprises: an inverter 3 for converting DC power supplied from an overhead line to three-phase AC power; inverter output current detection means 10u, 10w for detecting a current on the AC side of the inverter 3; inverter output voltage detection means 12u, 12v for detecting a voltage on the AC side of the inverter 3; inverter power arithmetic means 812 for computing the output power of the inverter 3; and a power control unit 814 for computing a reference power value Pac* on the basis of an output current to suppress an oscillation on the input side of the inverter 3, and exerting control so that the reference power value Pac* and an output power Pac of the inverter 3 match.</p> |
