A power distribution system in a moving body, provided with a first power system connected to a power generator and a first power load in which the amount of power fluctuation is less than a prescribed value, a second power system connected to a second power load in which the amount of fluctuation may reach or exceed the prescribed value, a first power converter, a second power converter, a third power converter, and a bus tie breaker. When the second power load is not operating, the bus tie breaker is in a connected state, and when the second power load is operating, the bus tie breaker is in a cut-off state. The first power converter is controlled on the basis of a first power command value given by a low-frequency component, below a prescribed frequency, of the actual power value of the second power converter. The second power converter is droop-controlled. The power of the third power converter is controlled so as to resolve the imbalance of power flowing into and out from a DC intermediate part.
展开▼
