Distributed management lithium iron phosphate battery pack

Abstract

The invention provides a distributed management lithium iron phosphate battery pack. The distributed management lithium iron phosphate battery pack comprises N lithium iron phosphate batteries connected in series, single battery monitoring modules, a current monitoring module, a control module and a convergence module, wherein N is a natural number; each lithium iron phosphate battery is providedwith an independent single battery monitoring module; each single battery monitoring module collects the voltage of each single battery and the temperature of a single pole; the plurality of single battery monitoring modules are connected in series and then connected with the convergence module and upload all collected or detected signals to the convergence module; the current detection module ismatched with the Hall sensor so as to be connected with the convergence module, and uploads all collected or detected signals to the convergence module; the convergence module analyzes and stores thecollected data and calculates an SOC and an SOH; and the convergence module is connected with the single battery monitoring modules by adopting a distributed BMS (Battery Management System) to discontinuously supply power for 12 hours. A distributed BMS management system is built in the distributed management lithium iron phosphate battery pack and is used for monitoring and managing the battery pack in real time.

Description

technical field [0001] The invention relates to the field, in particular to a distributed management lithium iron phosphate battery pack. Background technique [0002] With the rapid development of my country's railways, to ensure the normal operation of high-speed railway communication system equipment, the reliability of batteries in the backup power supply of high-speed railway communication equipment is getting higher and higher. Most of the traditional railway communication equipment batteries use valve-regulated lead-acid batteries, which occupy an area Disadvantages such as large area, high working environment temperature requirements, poor high-rate discharge performance, and environmental pollution have been gradually replaced by lithium iron phosphate batteries with high energy density, small size, light weight, long cycle life, and pollution-free. [0003] Most of the existing lithium iron phosphate battery packs are used in conjunction with the high-frequency swit...

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Problems solved by technology

[0002] With the rapid development of my country's railways, to ensure the normal operation of high-speed railway communication system equipment, the reliability of batteries in the backup power supply of high-speed railway communication equipment is getting higher and higher. Most of the traditional railway communication equipment batteries use valve-regulated lead-acid batteries, which occupy an area Disadvantages such as large area, high working environment temperature requirements, poor high-rate discharge performance, and environmental pollution are gradually replaced by lithium iron phosphate batteries with high energy density, small size, light weight, long cycle life, and pollution-free

[0003] Most of the existing lithium iron phosphate battery packs are used in conjunction with the high-frequency switching power supply in the communication room. At present, there is no lithium iron phosphate battery pack used in tunnel repeaters with harsh working environments.

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