Multifunctional integrated power supply

The utility model discloses a multifunctional integrated power supply, which comprises a plurality of battery management units, an alternating-current extension set, a mains supply, a gasoline engine generator, a solar controller unit, a high-voltage direct-current remote supply unit, a monitoring management unit, an FSU, a plurality of user management units and a rectification unit, each battery management unit is respectively connected with the two groups of differential batteries; wherein at least one battery management unit is connected with the energy storage batteries arranged in pairs; the battery management units are respectively connected with the infrastructure; the alternating-current extension set is respectively connected with the mains supply and the oil engine; and the AC extension set is connected with the infrastructure. The device can realize solar energy input or high-voltage direct current output; the basic plug-in frame adopts a left-right symmetrical layout and a left-right busbar contac