Storage battery charging system of novel high efficiency photovoltaic assembly

Abstract

The invention discloses a storage battery charging system of a novel high efficiency photovoltaic assembly, comprising a photovoltaic assembly, a voltage sensor, a storage battery, a single-chip microcomputer, a configuration switch and a first control switch. The photovoltaic assembly, the first control switch and the storage battery are connected in series to form a circuit; the voltage sensor is connected to the two ends of the photovoltaic assembly in parallel; the single-chip microcomputer is connected to the voltage sensor and the first control switch in series to form a circuit; and the configuration switch is connected to the single-chip microcomputer and the array of the photovoltaic assembly. On one hand, the storage battery charging system of the novel high efficiency photovoltaic assembly can realize intermittence pulse charging under the weak light through reasonable design and expands the usage condition range of the photovoltaic assembly. On the other hand, the storage battery charging system disclosed by the invention can perform detection and control on the charging state of the storage battery, which not only prolongs the service life of the storage battery, but also saves the photovoltaic energy. The invention expands the usage condition of the photovoltaic assembly and improves the working efficiency of the photovoltaic assembly.

Description

Technical field [0001] The invention relates to the field of photovoltaic materials, in particular to a new type of high-efficiency photovoltaic component battery charging system. Background technique [0002] Using solar power to charge batteries is a common technology, especially in communication base stations in some remote areas. The solar base station uses photovoltaic displays to convert light energy into electrical energy, and manages battery charging and discharging through the solar controller, and provides energy to the load when needed. However, this system that uses solar energy to charge the battery through photovoltaic modules still has the following problems: First, the output characteristics of photovoltaic modules are greatly affected by the intensity of sunlight. Under low light, the current output is very small and the battery cannot be directly charged. ; The other opposite situation is that the battery itself has the problem of charge acceptance. It can acce...

AI Technical Summary

Problems solved by technology

However, there are still the following problems in this system of using solar energy to charge batteries through photovoltaic modules: First, the output characteristics of photovoltaic modules are greatly affected by the intensity of sunlight. Another opposite situation is that the battery itself has the problem of charging acceptance. It can accept high current charging at the initial stage of charging. After the battery reaches the vaporization point voltage, there will be side reactions. If it cannot be stored in the battery, it will cause a large amount of vaporization and water loss in the battery, accelerate the aging of the battery, and reduce the service life of the battery. Although the solar photovoltaic module still has the ability to output electricity, the battery cannot accept it, which is a waste of energy. resources for photovoltaic modules

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