Peak clipping and valley filling method applied to power supply of communication base station

Abstract

The invention provides a peak clipping and valley filling method applied to a power supply of a communication base station in the field of power supply management. The peak clipping and valley fillingmethod comprises the steps of S1, sending a power failure command to a battery manager during power failure; S2, detecting whether a relay is closed or not, and if so, prompting a fault; if not, entering the step S3; S3, judging whether the electric quantity of the lithium battery is less than 15% or not, and if so, prompting a fault; if not, sending a relay closing command, and entering the stepS4; S4, judging whether the relay is closed or not, and if so, entering the step S5; if not, prompting a fault, and entering the step S3; S5, allowing the lithium battery to supply power to the direct-current load, judging whether power is on or not, and if not, entering the step S6; if yes, conducting peak clipping and valley filling according to the current time period; S6, judging whether theelectric quantity of the lithium battery is less than 15% or not, and if so, prompting a fault; and if not, entering the step S5. The method has the advantages that the performance of the lithium battery is fully utilized, and the reliability of the power supply of the communication base station is greatly improved.

Description

Technical field [0001] The invention relates to the field of power management, in particular to a peak-shaving and valley-filling method applied to the power supply of communication base stations. Background technique [0002] In order to ensure uninterrupted communication, in addition to the need to supply power to the communication base station through the power grid, an emergency energy storage power supply must be configured in the communication base station computer room so that the base station can continue to work during a power outage. The emergency energy storage power supply of base stations mainly adopts lead-acid batteries or lithium batteries. Because lithium batteries have excellent performance such as low pollution and long life, as the cost of lithium batteries continues to decline, their economics are beginning to become prominent, and more and more base stations are added. Use lithium batteries, and gradually replace the lead-acid batteries of established base s...

AI Technical Summary

Problems solved by technology

[0003] Lithium iron phosphate batteries can be charged and discharged about 3,000 times in their entire life cycle, but the existing base stations are only used 4 to 6 times a year in pure backup mode, which is a great waste of lithium battery performance

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