异步电机模拟风轮机的变频调速系统研究

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1、北京交通大学硕士学位论文异步电机模拟风轮机的变频调速系统研究姓名：安小丹申请学位级别：硕士专业：电力电子与电力传动指导教师：梁晖20080601ABSTRACTABSTRACTABSTRACT：Astheeconomyofallovertheworldisdevelopingquickly,theproblemaboutenergysourcesandenvironmentiscatchingmoreandmoreattentionsfromhumanbeings．Thetraditionalsourcesaren

2、otmeasurelessandpartsofthesearecausingenvironmentproblems．Windpoweriscleanandreproducible，thisiscoincidentwithOurdemandsfornewsources．Recently,theresearchofwilldpoweristendingto‘'highcapacity,highutilizationefficiency'’，weshoulddomoreandmoreresearchesinthelabo

3、ratory．Soitisnecessarytobuildaplateformsimulatingwindturbines．Thispaperdescribesthewindpowergenerationsystems，thedevelopmentofwindpowerinandoutabroadgenerally,comparesseveralkindsofwindpowergenerationsystems，andmainlydoesresearchesonsimulatingwindturbinesbased

4、onthesynchronouswindpowergeneratingsystem．Whensimulatingwilldturbines，itshouldapproachtheactualwindround．Sothispaperdescribesthecharacteristicsandprincipleofwindturbines，expatiatesthedeductionoftheP-ntrackandthecaptureofthelargestwindpower,andfinallyworkoutatr

5、ackforasynchronousmotor’Schangingspeeds．Asynchronousmotorisaimportantpartofthisplateform，thispaperdepictsthemodelofasynchronousmotor,theprincipleofchangingspeed，vectorcontrolandcoordinates’changing，detectshowtosimulate埘ndturbinesandhowtocontroltheasynchronousm

6、otor．Asetofsimulationsarewelldoneinthepaper,itbuildsupasimulatingplateformofwindpowergeneratingsystemcontainingasynchronousmotor．Becauseofthecomputer’Soperatingability,thispapersimulateseverypartseparatelyfirst，andafterrealizingspeeds’changingofasynchronousmot

7、oLitconnectstheasynchronousmotorandthesynchronousdynamotortogetherinordertosimulatewindturbine’ST-ncurves．Andmeanwhileitkeepstheparametersofeverymodule’inputsandoutputsthesanleinordertoensuretheirjoin．Becauseofthelimitedconditionsoflaboratory,experimentsareall

8、carriedoutbasedontheconverter’Svectorcontr01．ThispaperdesignsthehardwarecontrolcircuitsandwritessoftwareinClanguage．The‘‘VectorControl’’weuseddecouplesthecontrollingfactorsthereand