Abstract: A safety low-voltage electric appliance supplied with power by an energy storage system comprises: a multi-energy power supply monitoring and recognizing unit used for integrating power interfaces for multi-energy power supply, and monitoring and tracking a multi-energy state; an energy storage region dynamic energy level unit used 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; a multi-energy power supply and storage conversion unit used 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 unit; and a low-voltage direct supply safety protection and stabilization unit used for monitoring an electricity consumption state of the load terminals, and performing safety protection on the load terminals.

Abstract: A safety low-voltage electric appliance supplied with power by an energy storage system comprises: a multi-energy power supply monitoring and recognizing unit used for integrating power interfaces for multi-energy power supply, and monitoring and tracking a multi-energy state; an energy storage region dynamic energy level unit used 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; a multi-energy power supply and storage conversion unit used 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 unit; and a low-voltage direct supply safety protection and stabilization unit used for monitoring an electricity consumption state of the load terminals, and performing safety protection on the load terminals.

Abstract: A low-voltage direct supply system capable of switching between solar energy and mains supply comprises: a solar and stable-voltage energy storage branch system used for providing solar power supply and charging through multiple groups of extensible solar panels and an energy storage battery pack; a mains power supply stable-switching branch system used for quickly switching to mains power supply without shocks through a mains supply conversion module and charging the energy storage battery pack; a power supply load detection and control branch system used for detecting a voltage, a charge/discharge current, and a balance between supply and demand of the energy storage battery pack and performing switching control on branch systems; and an output balance and low-voltage direct supply branch system used for performing balanced low-voltage direct supply on a load side according to a control output signal of the power supply load detection and control branch system.