NETWORKED DISTRIBUTED HIGH VOLTAGE DC POWER SUPPLY SYSTEM

摘要

A networked distributed high voltage DC power supply system, comprising several AC power supplies (1), several loads (201, 202, 203), several high voltage DC power supply devices (301, 302, 303, 304), and a DC power grid (4) and management control unit (5); the several high voltage DC power supply devices being connected to the several AC power supplies and the several loads; the several high voltage DC power supply devices also being connected to the DC power grid and the management control unit; the high voltage DC power supply devices being used for converting alternating current to direct current, then supplying power to the loads or the DC power grid; each of the high voltage DC power supply devices being able to operate independently, only supplying power to the load to which it is connected; each of the devices also being capable of supplying power to the load to which it is connected, while also simultaneously operating grid-connected with other high voltage DC power supply devices by means of the DC power grid, outputting DC electricity to the DC power grid or inputting DC electricity from the DC power grid; each one of the high voltage DC power supply devices being capable of switching between the two states of independent operation and grid-connected operation.