摘要
Lowvoltageridethrough(LVRT)capabilityhasbecomemoreandmoreanissuefornewlyintegratedwindturbines.TheLVRTprogramsdescribedinthispaperdevelopedfieldtestsfornewlyinstalledwindturbinesonwindfarmsinNortheastChina.ItisthereforedifferentfromotherpapersthatonlyvalidateLVRTcontrolstrategiesthroughrunningcomputersoftwaresimulations.Toexamineasinglewindturbine'sLVRTcapability,thewindturbine'sterminalvoltagedipwasrealizedbyusingagridvoltagedipemulator,whichwaslocatedonthe690Vsideofthegeneratortransformer.Inthispaper,byartificiallymakingvariousgridfaults,thedynamicbehaviorofDFIGandPMSGwindturbinesareanalyzedandcompared,controlstrategiessuchasactive/passivecrowbarandchopperprotectionschemesareverified,andnewactive/reactivepowercompensationmethodsareinvestigatedandcompared.
出版日期
2012年05月15日(中国期刊网平台首次上网日期,不代表论文的发表时间)