Uninterrupted power supply using lithium iron phosphate battery

Abstract

The invention relates to an uninterrupted power supply using a lithium iron phosphate battery. The uninterrupted power supply comprises an input filter, an output filter, a manual bypass system, a bypass system, a rectifier system, a charging system, a battery balanced control system, an inverter system, a static switch and a lithium iron phosphate battery. Because the lithium iron phosphate battery made of new materials is used as the core energy-saving battery of the uninterrupted power supply, has a small volume and ensures the high discharge performance of the product, the uninterrupted power supply has the advantages of good discharge performance under the high / low-temperature environment, quick charge, ultra long service life and no elements polluting the environment in the battery, thereby solving the various defects of the battery of the traditional uninterrupted power supply in service.

Description

technical field [0001] The invention relates to the field of power supply technology, in particular to an uninterruptible power supply using a lithium iron phosphate battery. Background technique [0002] Uninterruptible power supply (UPS) and inverter all have an energy storage device "battery". The battery pack is one of the core components in the uninterruptible power supply (UPS) and inverter system. The weight and volume of the battery, the amount of discharge capacity, the discharge current characteristics, the high and low temperature discharge characteristics, and the service life directly affect the uninterrupted power supply. The weight, volume, discharge time, and reliability of the power supply (UPS), as well as the pollution of the battery to the environment, etc. [0003] 1) When the lead-acid battery is discharged at a current above 3C, it can only release less than 30% of the battery capacity; when the lead-acid battery is charged, the charging current must ...

AI Technical Summary

Problems solved by technology

[0003] 1) When the lead-acid battery is discharged at a current above 3C, it can only release less than 30% of the battery capacity; when the lead-acid battery is charged, the charging current must be controlled below 0.25C, and after full discharge, the charging time needs to be within 8 It takes hours to charge to 80% of the battery capacity, which directly affects the uninterruptible power supply (UPS), the re-discharge time of the inverter, and directly affects the reliability of the product;

[0004] 2) The service life of ring discharge is about 300 times, especially in low temperature environment, the discharge capacity is worse;

[0005] 3) During the life cycle of lead-acid batteries, the capacity decreases year by year;

[0006] 4) The main raw material of lead-acid batteries is "lead", which is harmful to the human body. The production and recycling of the batteries directly affect the environmental pollution.

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