AN IMPROVED PID AND REPETITIVE CONTROL FOR SINGLE PHASE INVERTERS OF PHOTOVOLTAIC POWER SYSTEMS

AN IMPROVED PID AND REPETITIVE CONTROL FOR SINGLE PHASE INVERTERS OF PHOTOVOLTAIC POWER SYSTEMS

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大小:3.23 MB

页数:67页

时间:2019-05-17

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1、硕士留学生学位论文ANIMPROVEDPIDANDREPETITIVECONTROLFORSINGLEPHASEINVERTERSOFPHOTOVOLTAICPOWERSYSTEMS作者姓名MuhammadArslan学科专业ElectricalandComputerEngineering指导教师YunjianPeng,AssociateProfessor所在学院AutomationScienceandEngineering论文提交日期2018年09月12日ANIMPROVEDPIDANDREPET

2、ITIVECONTROLFORSINGLEPHASEINVERTERSOFPHOTOVOLTAICPOWERSYSTEMSADissertationSubmittedfortheDegreeofMasterCandidate:MuhammadArslanSupervisor:AssociateProf.YunjianPengSouthChinaUniversityofTechnologyGuangzhou,China分类号:学校代号:10561学号:201622856314华南理工大学硕士学位论文A

3、NIMPROVEDPIDANDREPETITIVECONTROLFORSINGLEPHASEINVERTERSOFPHOTOVOLTAICPOWERSYSTEMS作者姓名:指导教师姓名、职称:申请学位级别:硕士学科专业名称:电气计算机工程研究方向:逆变电源控制方法论文提交日期:2018年07月06日论文答辩日期:2018年09月12日学位授予单位:华南理工大学学位授予日期:年月日答辩委员会成员:主席:冯颖委员:冯颖黎善斌刘富春刘俊峰AbstractInverters,whichareinstalle

4、dinphotovoltaic(PV)powersystems,arekeydevicestoturnoutputdirectcurrent(DC)ofPVarraystoalternativecurrent(AC)withaspecificwaveformrequiredbypowerload.Withtheirwidespreadapplicationandincreasinglarge-scaleofPVpowersystemsinutilitypowernetwork,thedisturba

5、ncesfromloadandlinefaultsorexternalinterferencesoftencauseseriousproblemsininverters,operatinginasafeandsteadyconditionandinverterscontrolproblemsonsuppressingthedisturbanceshavealwaysbeenfocusedbytheindustryandacademiccircles.Manyeffortsandacademicres

6、earchhavebeencarriedouttoimprovetheflexibleperformanceofPV-connectedinverters.Thisthesispresentsacontrolledmechanismofsingle-phaseinverterforPVsystem.ProportionalIntegralDerivative(PID)controllerperformsbetterintheexistenceofnoiseandhigherrorwhilediffi

7、cultinfine-tuning.TheproposedmethodinvolvestheadvantagesofPIDwithRepetitiveControl(RC)controllers,helpingPIDcontrollertodecreaseerrorfromlastperiodwhilestillusingPIDcontrollerforhandlingwithnoiseanderror.Firstofallthisdissertationestablishestheconversi

8、onmethodofsingle-phaseinverterofthephotovoltaicpowersystembyusingtheLCfilterandfindanovelmethodtocontrolthesystemwithimprovedperformanceandstability.Secondly,thisstudywilldivedeeperincontrollingmechanismofPIDandRCcontroltomakethesysteme

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