|
|
电力系统自动化 2013
海上风电直流传输网络的成本效益分析Keywords: DC,transmission,economics,availability,wind,power,generation Abstract: Duetolowloadfactorsofwindpowergeneration，itispossibletoreducetransmissioncapacitytominimizethecostoftransmissionsystemconstruction.TwoVSC-HVDCschemesforoffshorewindfarm，calledthepointtopoint（PTP）andDCmeshconnectionsarecomparedintermsoftheutilizationoftransmissionsystemanditscost.AWeibulldistributionisusedforestimatingoffshorewindpowergeneration，besides，thecrosscorrelationbetweenwindfarmsisconsidered.Thewindenergycurtailmentisanalyzedusingthecapacityoutputpossibilitytable（COPT）.Thesystempowerlosses，costsoftransmissioninvestmentandwindenergycurtailmentarealsocomputed.AstatisticmodelforthewindgenerationandtransmissionisbuiltandsimulatedinMATLABtovalidatethestudy.ItisconcludedthataDCmeshtransmissioncanreducetheenergycurtailmentandpowerlosses.Furtherbenefitisachievableasthewindcrosscorrelationbetweenwindfarmsdecreases.
|
