Patent ID: 11955886
Assignee: nan
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A safety low-voltage electric appliance with an energy storage system for outputting a low-voltage power supply, comprising:
a multi-energy power supply monitoring and recognizing module for integrating power interfaces for multi-energy power supply, and monitoring and tracking a multi-energy state; an energy storage region dynamic energy level module for dividing a multi-energy storage region into energy storage regions in terms of an energy storage form and specification, and adjusting energy levels of the dynamic energy storage regions based on power supply state analysis; a multi-energy power supply and storage conversion module for controlling electric energy transmission, converting electric energy of the multi-energy power supply into electric energy needed by DC-operated load terminals, and storing the energy storage region dynamic energy level module; and
a low-voltage direct supply safety protection and stabilization module for monitoring an electricity consumption state of the load terminals, performing safety protection on the load terminals, and realizing balanced and stable inter-regional power supply of power supply terminals in a region; wherein,
the multi-energy power supply and storage conversion module comprises:
a multi-energy power supply energy transmission sub-module for transmitting the electric energy of the multi-energy power supply to the energy storage region dynamic energy level module, and transmitting electric energy stored in the energy storage region dynamic energy level module to the load terminals;
a supply and storage conversion control center sub-module for controlling electric energy transmission of the multi-energy power supply energy transmission sub-module and a direct-supply energy storage and power supply conversion sub-module; and
the direct-supply energy storage and power supply conversion sub-module for converting the electric energy of the multi-energy power supply into the electric energy needed by the DC-operated load terminals according to the control of the supply and storage conversion control center sub-module, and storing the energy storage region dynamic energy level module;
the supply and storage conversion control center sub-module comprises:
an electric energy multi-way transmission sub-module used for realizing multi-way transmission of electric energy of the multi-energy power supply energy transmission sub-module, the multi-way transmission comprising multi-path transmission, multi-relay point transmission, long-distance transmission and short-distance transmission;
a transmission center sub-module for establishing a transmission center for the multi-way transmission, the transmission center comprising a multi-path transmission center, a multi-relay point transmission center, a long-distance transmission center and a short-distance transmission center;
a power supply conversion central control sub-module for central control of the direct-supply energy storage and power supply conversion sub-module, and comprising multiple energy storage region dynamic current transformers, multiple distributed energy storage controllers and a central controller, wherein the central controller communicates with the multiple distributed energy storage controllers; each said energy storage region dynamic current transformer comprises a central transformation module and at least one dynamic energy storage region, the dynamic energy storage region comprises a first adjustable energy storage region, a second adjustable energy storage region, a first gate thyristor group and a second gate thyristor group, the first gate thyristor group is connected in series between the first adjustable energy storage region and a DC side of a power electronic transformation module, and the first adjustable energy storage region and the power electronic transformation module are connected or disconnected by controlling forward on-off and reverse on-off of the first gate thyristor group; the second gate thyristor group is connected in series between the power electronic transformation module and a DC grid, and the power electronic transformation module and the DC grid are connected or disconnected by controlling forward on-off and reverse on-off of the second gate thyristor group; and the second adjustable energy storage region and the first adjustable energy storage region are connected in parallel with the first gate thyristor group.