本科毕业设计（论文）外文翻译--大型风电场的瞬时稳定和模拟

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1、本科生毕业设计（论文）外文翻译中文题目：大型风电场的瞬时稳定和模拟英文题目：ModellingandtransientstabilityoflargeWindfarms姓名：林惠燕学号：261080088系别：工程技术学院专业：电气工程及其自动化年级：2010级指导教师：（签名）2012年月日19ModellingandtransientstabilityoflargewindfarmsVladislavandHansKnudsenandArneHejdeNielsenandJorgenKaasPedersenandNielsKjolstadPoulsenDepar

2、tmentsofElectricPowerEngineering,TechnicalUniversityofDenmark,Building325,DK—2800Lyngby,VladislavDemmark1.IntroductionDenmarkhascurrentlyabout2300MWwindpowercapacityinon-landandfewoffshoresettings,whichcorrespondstomorethan20%ofpowerconsumption(inaverage).Further,constructionoftwolarge

3、-scaleoffshorewindfarmsof150MWpowercapacityeachhasbeenannounced.ThefirstlargeoffshorewindfarminDenmarkwillbeconstructedatHomsRevbytheyear2002intheareaofthesystemoperatorELTRA.ThiswillbefollowedbythefirstintheareaoftheEasternDanishsystemoperator,ELKRAFTSystem,largeoffshorewindfarmatRods

4、andbytheyear2003.Theinstalledcapacityinon-landsettingsandincombinedheat-powerunits(UHP)willincreaseaswell,whilstthepowerproductionandcontrolabilityoftheconventionalpowerplantswithrespecttovoltageandfrequencyarereduced.Intheyearstocome,thepowerproductionpatternintheDanishpowersystemwill

5、changefromthepowersupplyfromconventionalpowerplants―asitisknowntoday―toapowersupplymix,whereabout30-40%ofpowerconsumption(inaverage)iscoveredbywindpower.Inotherwords,thepowertechnologywillundergochangesfromawell-knowntechnologybuilt-upaboutconventionalpowerplantstoapartlyunknowntechnol

6、ogy―windpower.Intheyeartocomeitwillbefocusingonmaintainingpowersystemstabilityandvoltagestability,forexampleatashortcircuitfault,ensuringpowersupplysafetyandotherimportanttasksasamountofwindpowerisdrasticallyincreasing.Thissituationmakesitnecessarytofindsolutionswithrespecttomaintainin

7、gdynamicstabilityofthepowersystemwithlargeamountofwindpoweranditsreliableoperation.Thesesolutionsarebasedonanumberofrequirementsthatareformulatedwithrespecttooperationofthelargeoffshorewindfarmsandtheexternalpowersystemincaseoffailureeventsintheexternalsystem.Thepapercontainsseparate