Off-grid independent solar power storage/supply system and method

Abstract

The invention belongs to the technical field of solar power storage / supply and in particular relates to an off-grid independent solar power storage / supply system and method. The off-grid independent solar power storage / supply system disclosed by the invention comprises a power supply path from a solar circuit to an alternating current load, which is composed of a solar generating assembly, a monitoring protective circuit A, an MPPT (maximum power point tracking) and DC / DC (direct current) circuit, a voltage regulating circuit, an inverter circuit, a monitoring protective circuit C and the alternating current load which are connected; and multiple storage battery packs, a monitoring and optional switching circuit B, an automatic electricity compensation circuit and a voltage regulating circuit are connected to jointly form an electricity compensation circuit path, an unstable solar circuit is stabilized by adopting an electricity compensating manner, electricity demand when load power changes can be met, stability of power supply is guaranteed and influence and damage of instant heavy current to the storage batteries are effectively solved by virtue of electricity compensation power supply of a storage capacitor, and more than 60% of storage battery arrangement and investment can be reduced and utilization rate of solar power is greatly improved under the condition of the same power supply capability.

Description

technical field [0001] The invention belongs to the technical field of solar energy storage power supply, and in particular relates to an off-grid independent solar energy storage power supply system and method. technical background [0002] Renewable clean energy technology is one of the most decisive technical fields in the development of the world economy in the 21st century. It has the advantages of ubiquity, inexhaustibility, and no environmental pollution. It is playing an increasingly important role in the sustainable development of energy in the world and in my country. greater effect. The great significance of the application and popularization of new energy electric power is self-evident, and its new energy application technology is also a subject of continuous research and innovation for all mankind. [0003] There are still many areas without grid power supply in the world. In my country alone, according to the data released by the government in 2010, there are a...

AI Technical Summary

Problems solved by technology

For the maintenance-free lead-acid batteries commonly used by ordinary users, it takes at least 10 hours of charging to complete a reasonable middle-depth charge and discharge (such as 50%) process, and it takes 7 hours to use the fast charge method. Above, otherwise the battery will be in a state of undercharging or power loss, which will seriously affect the life and efficiency of the battery for a long time, and the existing technical solutions have no solution to this

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