BACKUP POWER SUPPLY NETWORK AND VESSEL WITH BACKUP POWER SUPPLY NETWORK AS ON-BOARD NETWORK Russian patent published in 2020 - IPC H02J9/06 

FIELD: electrical engineering.

SUBSTANCE: disclosed is a standby power supply network comprising a first power supply converter (11) with a first intermediate circuit (12) of direct voltage and a second power supply converter (21) with a second intermediate circuit (22) of constant voltage, as well as first energy source (13) and second power source (23), AC voltage network (2) and connecting element (4) for external network (5), wherein the first and second power supply transducers (11, 21) on the side of the alternating voltage are connected to the AC voltage network (2), wherein the first power source (13) is connected to the first intermediate DC circuit (12), and second power source (23) is connected to second intermediate circuit (22) of constant voltage. To achieve technical result, it is proposed to place first power switch (14) between first power supply current converter (11) and alternating voltage network (2), wherein the first intermediate circuit (12) of DC voltage and the second intermediate circuit (22) of DC voltage are connected to each other by means of the intermediate circuit switch (3), wherein between first power supply converter (11) and first network switch (14) there is connection (6) with connecting element (4) for external network (5).

EFFECT: improved backup power supply network with regard to power supply via external network.

7 cl, 6 dwg