Patent ID: 11929614
Assignee: SUNGROW POWER SUPPLY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 14:
15. An energy storage system, comprising:
an energy storage unit,
a master control unit,
a power converter, and
a switching power supply, wherein
an alternating current, AC, input terminal of the switching power supply is connected to an AC power source via a first protection fuse unit;
a direct current, DC, input terminal of the switching power supply is connected to the energy storage unit in the energy storage system via a second protection fuse unit;
an output terminal of the switching power supply is connected to a power supply terminal of the master control unit in the energy storage system and a power supply terminal of an additional load in the energy storage system; and
the switching power supply is configured to: receive electric energy from at least one of the energy storage unit and the AC power source, and supply power to the master control unit and the additional load in the energy storage system; and switch, when the energy storage system enters a standby state, to a low-power-consumption standby mode to supply power at most to the master control unit,
the energy storage unit is connected to an external device via the power converter;
the energy storage unit and the power converter are both communicatively connected to the master control unit; and
the switching power supply is configured to provide auxiliary power supply.