Energy-storage power supply system and energy-storage power supply method

Abstract

The invention relates to an energy-storage power supply system and an energy-storage power supply method. The real-time voltage value and the real-time current value of each single battery in use and the conversion time of the real-time voltage value from a first threshold to a second threshold are acquired; the actual capacity value of each single battery in use is worked out based on the real-time voltage value, the real-time current value and the conversion time; the actual capacity value and a preset capacity value are compared so as to judge whether the capacity of each single battery in use decreases and whether the capacity meets the working standard; and further the power supply status of a main battery module and the power supply status of a spare battery module are controlled. Thus, that the original voltage parameter is not subject to change is ensured, overall replacement of the batteries or the power supply system is not needed, and the working life of the whole battery pack can be prolonged effectively.

Description

technical field [0001] The invention relates to the field of power supply, in particular to an energy storage power supply system and method. Background technique [0002] With the development of new energy technology and the popularization of life concepts such as environmental protection and low carbon, solar energy systems and new energy applications have received more and more attention. At present, they have been widely used in transportation, communication, ocean, meteorology, and other fields. Great application prospects. [0003] It is understood that the current life of solar panels can reach about 25 years, and the average life of battery packs as its energy storage device is only about 2-3 years, which restricts the development of solar energy systems and new energy applications. However, battery-type energy storage power supply systems such as solar cells are more and more widely used in the fields of industry and life. However, if it is widely used, it is impo...

AI Technical Summary

Problems solved by technology

However, battery-type energy storage power supply systems such as solar cells are more and more widely used in the field of industry and life. However, if it is widely adopted, it is impossible to replace the power supply system of street lamps and traffic lights once every 2-3 years. The replacement project is huge. Not only is the replacement cost high, it wastes manpower, material and financial resources, but also requires a power outage for maintenance during replacement, so it cannot be put into work normally. may also be dangerous

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