Abstract:
A station building power supply device according to the present invention includes: a station building power generation unit including an inverter main circuit and an inverter control circuit to control the inverter main circuit, in which the inverter main circuit converts a voltage supplied from an overhead wire into a voltage required by loads in a station building; a control-circuit power generation unit that converts a voltage supplied to the loads in the station building and generates an input voltage for the inverter control circuit; and a start-up power generation unit that converts a voltage supplied from the overhead wire and generates an input voltage for the inverter control circuit, in a state where the inverter main circuit has stopped the operation and the control-circuit power generation unit has stopped an operation of generating the input voltage for the inverter control circuit.
Abstract:
A station-building power supply device is provided in each station building and supplies low-voltage AC power to station building facilities of each station building. There are two mode therein: a regenerative mode in which, when regenerative power regenerated by a train to an overhead wire becomes surplus, the surplus regenerative power supplied from the overhead wire and power supplied from a high-voltage distribution line are used together to supply low-voltage AC power corresponding to an amount of normal power consumption of the station building; and a standby power supply mode in which, when a power outage of the high-voltage distribution line occurs, power supplied from the overhead wire is used to supply low-voltage AC power corresponding to an amount of emergency power of the station building.
Abstract:
A station-building power supply device is provided in each station building and supplies low-voltage AC power to station building facilities of each station building. There are two mode therein: a regenerative mode in which, when regenerative power regenerated by a train to an overhead wire becomes surplus, the surplus regenerative power supplied from the overhead wire and power supplied from a high-voltage distribution line are used together to supply low-voltage AC power corresponding to an amount of normal power consumption of the station building; and a standby power supply mode in which, when a power outage of the high-voltage distribution line occurs, power supplied from the overhead wire is used to supply low-voltage AC power corresponding to an amount of emergency power of the station building.
Abstract:
A station building power supply device according to the present invention includes: a station building power generation unit including an inverter main circuit and an inverter control circuit to control the inverter main circuit, in which the inverter main circuit converts a voltage supplied from an overhead wire into a voltage required by loads in a station building; a control-circuit power generation unit that converts a voltage supplied to the loads in the station building and generates an input voltage for the inverter control circuit; and a start-up power generation unit that converts a voltage supplied from the overhead wire and generates an input voltage for the inverter control circuit, in a state where the inverter main circuit has stopped the operation and the control-circuit power generation unit has stopped an operation of generating the input voltage for the inverter control circuit.