%0 Journal Article
%T Impact of Shaft Stiffness on Inertial Response of Fixed Speed Wind Turbines
%A FranciscoGONZ?LEZ-LONGATT
%A 
%A PawelREGULSKI
%A HappyNOVANDA
%A VladimirTERZIJA
%J 电力系统自动化
%D 2012
%X Futurepowersystemfacesseveralchallenges，oneofthemisthehighpenetrationlevelofintermittentwindpowergeneration，providingsmallorevennoinertialresponseandbeingnotcontributingtothefrequencystability.Theeffectofshaftstiffnessoninertialresponseoffixedspeedwindturbinesispresented.Fourdifferentdrive-trainmodelsbasedonthemulti-bodysystemaredeveloped.Thesmall-signalanalysisdemonstratesnosignificantdifferencesbetweenmodelsintermsofelectro-mechanicaleigen-valuesforincreasingshaftstiffness.Thenaturalresonancefrequencyofdrive-traintorsionmodesshowsslightlydifferentvaluesbetweendampedandundampedmodels，butnosignificantdifferencesarefoundinthenumber-massmodels.Time-domainsimulationsshowthechangesintheactivepowercontributionofawindfarmbasedonafixedspeedwindturbineduringthesystemfrequencydisturbance.Thechangesinthekineticenergyduringthedynamicprocessarecalculatedandtheircontributiontotheinertiaconstantissmallandeffective.Thelargestcontributionofthekineticenergyisprovidedatthebeginningofthesystemfrequencydisturbancetoreducetherateofthefrequencychange，itispositiveforthefrequencystability.
%K wind
%K energy
%K wind
%K power
%K wind
%K turbine
%K induction
%K generator
%K inertial
%K response
%K sub-synchronousoscillation
%U http://www.aeps-info.com/aeps/ch/reader/view_abstract.aspx?file_no=201201128&flag=1