Voltage conversion method for lithium iron phosphate battery packs

Abstract

The invention discloses a voltage conversion method for lithium iron phosphate battery packs, which includes the following step: S1, the input voltage of a lithium iron phosphate battery pack module is boosted: the temperature and the circuit conduction state of a lithium iron phosphate battery pack and a combination circuit thereof are detected, and after the circuit is determined to be normal, the input voltage of the lithium iron phosphate battery pack is pre-boosted so that the voltage is raised by a tiny value. By boosting the output voltage and input voltage of the lithium iron phosphatebattery pack and applying the MPPT technology, the lithium iron phosphate battery pack can directly replace the battery pack of an old solar street lamp in urgent need of maintenance to make the oldstreet lamp reaching the service lifetime continue to be used and avoid the waste of a lot of materials and resources, the solar panel can achieve the maximum efficiency and supply power to the lithium iron phosphate battery pack with the maximum power, the power of the original silicon crystal plate can be improved, and maximum utilization of resources can be realized.

Description

technical field [0001] The invention relates to the field of voltage conversion methods, in particular to a voltage conversion method for a lithium iron phosphate battery pack. Background technique [0002] The solar street light system is composed of LED light source (including drive), solar panel, battery (including battery incubator), solar street light controller, street light pole (including foundation) and auxiliary material wire. [0003] Solar cell components generally use monocrystalline silicon or polycrystalline silicon solar cell components; LED lamp holders generally use high-power LED light sources; The advanced controller also has the function of adjusting the lighting time in four seasons, half-power function, intelligent charging and discharging function, etc.; the battery is usually placed underground or there will be a special battery insulation box, which can use valve-regulated lead-acid batteries, colloidal batteries, Iron-aluminum batteries or lithium...

AI Technical Summary

Problems solved by technology

[0004] Solar street lights have a certain service life. When a large number of old-fashioned solar street lights are about to reach the end of their service life, if you do not deal with them and replace the battery components in these street lights in time, the large quantities of old-fashioned street lights will not be able to continue to be used. , which causes a lot of waste of materials and resources, and the traditional battery pack cannot directly replace the original aging battery pack because of its insufficient output voltage and input voltage.

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