Research And Design Of Lithium-ion Battery Pack Monitoring System

Group of lithium iron phosphate battery is currently widely used batterybackup system in battery power, application in military and civilian smallappliances, its reliability is related to the stability and security of many importantoccasions, computer systems, telecommunication systems etc.. As the batterysystem, the performance of lithium iron phosphate battery with large currentcharge and discharge, it is stored energy is enormous. The safety performance ofthe inevitable occupies the first position, so the monitoring of lithium ironphosphate battery is very important. Based on the research of group of lithiumiron phosphate battery after the performance, real-time monitoring of the batteryis the key technology to improve the safety and reliability of battery group, oneof the difficult problems in research and industry experts and researchers ofpower system.This thesis studied the design of lithium iron phosphate battery monitoringsystem. Through the research, test and Analysis on the performance of lithiumiron phosphate battery and group technology, the small round cell battery systemgroup strategy and combined technology was proposed, according to therequirements of details of battery and various indicators, designed the batterymonitoring system, realized the real-time monitoring function of lithium ironphosphate battery.Through the test of lithium iron phosphate battery consistency test,temperature test, charge and discharge rate, analysis of the relationship betweenthe parameters of voltage, temperature etc. The battery monitoring systemaccuracy meets the design requirements, to achieve real-time monitoringpurposes, provides safeguard for the safety and reliability of battery.