双馈风力发电机组控制系统的研究

《双馈风力发电机组控制系统的研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、湖南大学硕士学位论文双馈风力发电机组控制系统的研究姓名：刘峰申请学位级别：硕士专业：电力电子与电力传动指导教师：王辉20080422硕士学位论文AbstractWindene唱ypowef’asanewtypegreenenergy'，isbeinganewtechnologyfieldwhichthestatesanoVertheworldswanttodeVelop．withthedeVelopmentsofindustry、shonageofelectricityandtheproblemofpowersupply，us

2、ingreproducibleenergy—windenergywhichwillbethemostimportantcleansubstituteenetgyisofgreatsignificancef10rabatingtheshortageofenergy。l订eanwhiletechniqueofVariablespeedconstantfrequenccyusedondouble—fedmachinebecomethemainstreamofwindene唱ypowerbyitslowcostandhigheffic

3、iency．Atnrst，thearticleanalysedthetheory0fVariablespeedconstantfrequenccy，introducedtheworkingprinciple、mathematicalmodelandVectorcontroltheoryofdouble-fedwindpowersystem，analysedthefunctionneedsofcontrolsystem．，then，wedesignedthestructureofdouble-fbdwindpowercontro

4、lsystem，includingconVertor-cell、paddle—changecell、crab-cell、temperature-cell．afterthat，wedesignedthesystemstructurebasedonPLC．Thispaperanalysedthecontrolerrandandthecontrolflowofthesub-controlsectionofthepowersystem，andalsolistitscontrolparameters，andcon69urethecont

5、rolsystem’shardwareusingtheprogrammable109iccontrollerofSIMENSS7200，includingthechooseofCPU、digitalmodule、analogmodule、tenlperaturemoduleandcommunicationnlodule．ThemaximumpowerextractionisaimpoIrtantresearchcontentofwindturbine．Tbmeetupdeficiencyoftraditionalpowerfe

6、edbacksignalcontrolandhill—climbingcontrol，acontrolmethodbasedonfuzzycontrolforMaximumoutputpowerpoint(MPPT)ispresentedwhichregulatestherotorspeedofgeneratorusingf．uzzyalgorithmonthebasisofthemutatiVedirectionoftherotorspeedincrease．Asaresult，theextractionofmaximump

7、owerisimproVed．atthebaseofhardwareestabIishedthispaperflnishedtheladderdiagramusingtheSTEP7MicroWINV4．0，includingmainprogram、maximumpowerextractionprogram、crabprogram、temperaturedetectingprogramandcommunicationprogram．Atlast，graphicaluserinterfaceisdesignedanddeVelo

8、pedusingconngurationsoftwareWINCCofSIMENS，whichcanestablishfriendlyHuman—Machineinterface．KeyWords：windpower’VariablespeedcOnstantfrequenc