Intelligent factory high-voltage direct-current power supply and distribution system and energy management system thereof

The invention discloses an intelligent factory high-voltage direct-current power supply and distribution system and an energy management system thereof. The problems that in the existing lithium battery manufacturing process, an energy storage system bidirectional inverter module, a charging pile rectification module and direct current load equipment are provided with a power factor correction loop and a resonance circuit, so that an AC/DC module is low in conversion efficiency and large in occupied space are solved. The rectifying device comprises a phase-shifting transformer used for unidirectional conduction of the rectifying device; the bidirectional inverter is used for rectifying the input alternating current, and a rectification module of the bidirectional inverter replaces the power correction loop and the filter circuit; the energy storage system is used for storing electric energy and supplying energy to the power grid system and comprises a plurality of energy storage lithium battery packs; and the