蓄電池光伏充放電控制器的設(shè)計.pdf

1、武漢理工大學碩士學位論文蓄電池光伏充放電控制器的設(shè)計姓名：黃原申請學位級別：碩士專業(yè)：通信與信息系統(tǒng)指導教師：劉皓春20090501AbstractBecauseoftheenergycrisis，Photovoltaic(PV)powerismoreandmoreimportantforpeople，andithasbecomeoneofthemainstreamnewenergyButPVcellsiSakindofnonlinea

2、rsources，SOawholeofPVpowersystemmustbecontainedachargingdischargingcontrollerexceptphotovoltaiccells，storagebaReryand10adThecontrolleristhecoreofthePVsystem，itcancontrolthecharging／dischargingcurrentandvoltageInthepast，m

3、ostofpapersaboutPVcontrollerwerebasedonachievingsomefunctions，howeverthecontrolperformanceofPVcontrollerhadbeenignoredTheactualstateofPVcontrollermaybenotsatisfactoryTherefore，thispaperisbasedonthecontrolsystemcharacteri

4、stics，analyzesandestablishesthechargingsystemmathematicalmodelThen，designschargingcircuitbyengineeringdesignmethodofcontinuoussystemTherebyensurethereliabilityandperformanceofthecontrollerAfterthat，designssomefunctionsab

5、outPVsystemInthistopic，ThecharacteristicsofPVcharging／dischargingsystemhasfirstbeenanalyzedThenthemathematicalmodelofcurrentloopcircuitandvoltageloopchargingsystemhasbeenestablishedAfterthataccordingtotheengineeringdesig

6、nmethodsofcontinuoussystem，thetransferfunctionsofcurrentregulatorandvoltageregulatorhavebeenfigureoutTheresulthasbeenverifiedbyMATLABsimulation，thatisinkeepingwithoptimalsecondordersystemInaddition，thepeaurbationinfluenc

7、eofphotovoltaiccellhasbeenanalyzedAndthensomesolutionshavebeenputforwardThehardwarestructureofPVcharging／dischargingcontrollerhasalsobeendeeplydiscussedinthispaperThemaincomponentsselectionandparametersettinghavebeenfini

8、shedThesepdownDC／DCBUCKcircuit，theMOSFETdrivecircuit，PWMmodulatorcircuit，voltageandcurrentfeedbackcircuit，currentandvoltageregulatorcircuithavebeendesignedThispaperadoptsPIC16F877Atomanagetheworkingstateofthesystem，thepa