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1、湖南大學(xué)碩士學(xué)位論文雙饋風(fēng)力發(fā)電機組控制系統(tǒng)的研究姓名：劉峰申請學(xué)位級別：碩士專業(yè)：電力電子與電力傳動指導(dǎo)教師：王輝20080422碩士學(xué)位論文AbstractWindene唱ypowef’asanewtypegreenenergy'，isbeinganewtechnologyfieldwhichthestatesanoVertheworldswanttodeVelop．withthedeVelopmentsofindustry、shonageofelectricityandtheproblemofpowersupply，us
2、ingreproducibleenergy—windenergywhichwillbethemostimportantcleansubstituteenetgyisofgreatsignificancef10rabatingtheshortageofenergy。l訂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．a(chǎn)fterthat，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．a(chǎn)tthebaseofhardwareestabIishedthispaperflnishedtheladderdiagramusingtheSTEP7MicroWINV4．0，includingmainprogram、maximumpowerextractionprogram、crabprogram、temperaturedetectingprogramandcommunicationprogram．Atlast，graphicaluserinterfaceisdesignedanddeVelo
8、pedusingconngurationsoftwareWINCCofSIMENS，whichcanestablishfriendlyHuman—Machineinterface．KeyWords：windpower’VariablespeedcOnstantfrequenc
