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ID:36743620
大小:1.87 MB
页数:60页
时间:2019-05-14
《基于PCHD双馈感应发电机的L2增益控制研究》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、AbstractWindpowerisoneofthemostimportantGreenenergy,intheenergycrisisandgrowingenvironmentalpollutionsituation,thewindpowertechnologyisanunprecedentedpaidcloseattention.Inthispaper,themaincontentistheoperationcontrolofdoubly—fedinductiongenerator(DFIG)whichisusuallyusedinthevariable-speed-constant
2、—frequencyVSCFwindpowersystem,ApplyingtheHamiltoniansystemtheoryandmethodsofL2-gaindisturbancesattenuation,theDFIGwindpowersystemcontrollerisdesigned,andtheStabilityofsystemisanalyze.AtthesametimethedesignforthesystemissimulatedintheMatlab/Simulinksoftwaresimulationenvironment,Thesimulationresults
3、showthatthelargestwindenergycaptureaswellasIndependentreactivepowerregulationisachieved.Ithasacertainreferencevalueforengineeringapplication,hascertainreferencevalue.Themainissuesinthispaperarefocusedon:ofthetheoreticalbasisareFirstly,APCHcontrolmethodandL2disturbanceattenuationintroducedandthePCH
4、Dmodelofnon—linearsystemisgiven.Secondly,EstablishedtheDFIGdynamicmathematicalmodelindifferentcoordinatessystem,andconstructedandbuiltupaPCHstructureoftheDFIG.establishedthewindturbinesVSCFwindpowersystemmodelwhichareConstructedbytheDFIG,bi—directionalpowerconverter.Andthedescribedthesuper-synchro
5、nyandsub—synchronyoperationofDFIG(electricpowerstateandpowerstate)andtherelationshipbetweentheenergyflows.Thirdly,undertheDFIGmathematicalmodelwhichisintheformofPCHDstructure,usingthestateerrorPCHDcontroltheoryandtheprincipleofL2disturbanceattenuation,designedthePCHcontrollerandL2controllergainoft
6、hevariablespeedconstantfrequencywindpowergenerationsystem,andfinallythetotalsystemcontrollerisgiven.Fourthly,introducedthevoltagespacevectorpulsewidthmodulation(SVPWM)principleandstudiedachievementofthevoltagespacevectorpulsewidthmodulation(SVPWM)ofthetransmissionsystem.AndgivethesimulationfortheD
7、FIGwindpowersystemintheMatlab/Simulinkenvironment.ThesimulationresultsshowthatthemethodiSfeasible.Finally,theresearchworkofthisarticleissummarized;somestudymethodsandfutureresearchdirectionsofthesystemareputforwa
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