| 摘要 |
A main conversion device 100 includes a first power converter 111, a second power converter 112, an auxiliary power-supply device 113, and an operation controller 120. The first power converter 111 is connected with a circuit electrically connected with an overhead line 105, and an intermediate link 121, and mutually converts power. The second power converter 112 is connected with the intermediate link 121, and a circuit electrically connected with an induction motor 103, and mutually converts power. The auxiliary power-supply device 113 receives power from the intermediate link 121, and supplies power to a load 104. The operation controller 120 controls the operation/deactivation of the first power converter 111 based on a value indicating an acceleration condition of a vehicle, a value in accordance with a vehicle speed, auxiliary source power, and a restriction value for regenerative power to the overhead line in such a way that the power to be supplied to the auxiliary power-supply device 113 becomes equal to or larger than the auxiliary source power, and the regenerative power flowing to the overhead line 105 becomes equal to or smaller than the restriction value. |
