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                  Researchonoptimalschedulingofwind - photovoltaic - thermal - pumpedstoragecombined
                              powergenerationsystem consideringladder - typecarbontrading

                                                       1
                                           1
                                                                                     1,2
                                                                    1
                                  LIChenxi,YANHeng,ZHANGHao,GUOPengcheng
                      (1.InstituteofWaterResourcesandHydroelectricEngineering,Xi’anUniversityofTechnology,Xi’an 710048,China;
                    2.StateKeyLaboratoryofEco - hydraulicsinNorthwestAridRegion,Xi’anUniversityofTechnology,Xi’an 710048,China)
                  Abstract:Inthepowersystemdominatedbynewenergysources,theuncertaintyofwindandphotovoltaic(PV)
                  outputcanleadtoinsufficientflexibilityinpower - sideregulation,anditisdifficulttoaccuratelyandquantitatively
                  assessthecarbonreductionbenefitsofthesystem.Inthispaper ,fuzzychanceprocessingpowerbalanceconstraint
                  isusedtocharacterizetheuncertaintyofwind - PVoutputandcombinedwithladder - typecarbontradingmethod ,
                  andanewday - aheadoptimalschedulingmodelofthewind - photovoltaic - thermal - pumpedstoragecombinedpower
                  generationsystemisestablished.TakingarealnewenergybaseinNorthwestChinaastheresearchobject,theop
                  timizationtargetisthelowestcomprehensivecostcomposedofthewholeprocessoperatingcostofthermalpoweru
                  nits ,wind - PVpowerabandonmentpenaltycost,theoperatingcostofpumpedstoragepowerstation,andthecost
                  ofcarbonemissions.Thesegmentedlinearizationmethodisusedtodealwiththeconvexnonlineartermoftheoper
                  atingofthermalpowerunits,andtheoptimalschedulingmodelaresolved.Theoptimalresultsshowthatthetotal
                  operatingcostandcarbonemissionofthecombinedpowergenerationsystemaregreatlyreducedbytheadditionof
                  pumpedstorageplants.Byintegratingthefuzzychanceconstraintmethodandladdercarbontradingmethodinthe
                  wind - photovoltaic - thermal - pumpedstoragecombinedpowergenerationsystem,thewholecostofthesystemisre
                  ducedby3.2%,thecarbonemissionisreducedby14.3%,andthecostofabandonedwind - PVisreducedby55.
                  7%,whichverifiedtheeffectivenessofthenewmodelconstructedinthispaper.
                  Keywords:wind - photovoltaic - thermal - pumpedstoragecombinedpowergenerationsystem;fuzzychancecon
                  straint ;ladder - typecarbontrading;comprehensivecost;optimalscheduling


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