磷酸鐵鋰動(dòng)力電池充電方法研究和均衡充電模塊的設(shè)計(jì).pdf

1、重慶大學(xué)碩士學(xué)位論文磷酸鐵鋰動(dòng)力電池充電方法研究和均衡充電模塊的設(shè)計(jì)姓名：徐偉申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：電氣工程指導(dǎo)教師：劉和平201005重慶大學(xué)碩士學(xué)位論文英文摘要IIABSTRACTPowerbatteryistheceenergyofElectricVehicle.Lithiumironphosphatebatteryisthebestchoiceofpowerbatterybecauseofitshighsecuritypowe

2、renvironmentalprotectionlonglife.HowevertheresearchongingmethodsoflithiumironphosphatebatteryisjuststartinguptherearestillmanyunresolvedproblemsinengineeringapplicationofElectricVehicle.Inthisbackgroundfollowingwkhasbeen

3、completed:AgingexperimentalplatfmhasbeenbuiltbasedonthegingrequirementsofLithiumironphosphatebatteries.RelativeCANwksmonitingunitalsohavebeendesigned.Maincontrolpanelofmonitingunitcommunicateswithbothgerbatterymanagement

4、systemthroughtheCANwks.Itcontrolsgingmethodsofgerusesserialinterfacetocompletethecommunicationwithuppercomputer.Thegingacteristicsmechanismsoflithiumironphosphatebatteryhavebeenanalyzedalargenumberofgingexperimentsonasin

5、glecellseriesoflithiumironphosphatebatteryhavebeencompleted.Basedontheseexperimentresultsagingmethodaboutwhichthesinglecellupperlimitvoltageisconstantbasedonfuzzycontrolhasbeenproposed.Themethodcanconductovergeprotection

6、oneachsinglebattery.Takingintoaccountofasinglecellintheseriesgingtheinconsistencyamongbatterieswillgraduallyincrease.Indertoensurethelifeofbatteriesonlyreduceutilizationofbatteries.Equalizationgingasaneffectivewaytoreduc

7、etheinconsistencyofbatteriesbalancestheacteristicsofbatteriestherebyimprovingutilizationofbatterysignificantlyextendsbatterylife.AfteranalyzedmanyschemesaboutEqualizationging，abalanceschemewhichfirstgingwiththemaingerthe

8、ngingwithaequalizationgingmodulehasbeenproposed.Themaincircuitcontrolcircuitthesoftwaremoduleofequalizationgingmodulehasbeendesigned.Atestcircuitalsohasbeenbuilttheexperimentalwavefmsofequalizationgingmoduleintheexperime

9、ntalcircuithavebeengiven.Basedontheexperimentalcircuitaexperimentofginganotbeingfullygedcellofbatterieshasbeencompletedwhichdemonstratedthefeasibilityofthisscheme.Keywds:LithiumIronPhosphateBattery(LiFePO4)gingExperiment