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1、IEEETRANSACTIONSONPOWERSYSTEMS,VOL.22,NO.4,NOVEMBER20071665AFuzzy-OptimizationApproachforGenerationSchedulingWithWindandSolarEnergySystemsRuey-HsunLiang,Member,IEEE,andJian-HaoLiaoAbstract—Thispaperpresentsafuzzy-optimizationapproachusingconventionalmeth
2、ods,thehourlyloadforthepowerforsolvingthegenerationschedulingproblemwithconsiderationbalanceequations,availablewaterforhydrounits,windspeedofwindandsolarenergysystems.Windandsolarenergyarebeingforwindpowergeneration,andsolarradiationforphotovoltaicconsid
3、eredinthepowersystemtoscheduleunitpoweroutput(PV)generatorsmustbeforecastedtopreventerrors.However,tominimizethetotalthermalunitfuelcost.Whenperformingthegenerationschedulingprobleminconventionalmethods,thetherearealwayserrorsintheseforecastedvalues.Acha
4、rac-hourlyload,availablewater,windspeed,solarradiationmustbeteristicfeatureoftheproposedfuzzy-optimizationapproachisforecastedtopreventerrors.However,actuallytherearealwaysthattheerrorsintheforecasthourlyload,availablewater,winderrorsintheseforecastedval
5、ues.Acharacteristicfeatureofthespeed,andsolarradiationcanbetakenintoaccountusingfuzzyproposedfuzzy-optimizationapproachisthattheforecasthourlysets.Anapproachbasedonfuzzysetsisproposedtoreachtheload,availablewater,windspeedandsolarradiationerrorscanbetake
6、nintoaccountusingfuzzysets.Fuzzysetnotationsindesiredgenerationschedulesbasedonuncertainloaddemand,thehourlyload,availablewater,windspeed,solarradiation,availablewater,windspeedandsolarradiation.Thismethodspinningreserveandtotalfuelcostaredevelopedtoobta
7、inthehasbeensuccessfullyappliedtootheroptimizationproblemsoptimalgenerationscheduleunderanuncertainenvironment.Tosuchasintegratedpowersystemscheduling[12],dynamicdemonstratetheeffectivenessoftheproposedmethod,thegener-economicdispatch[13],andsoon.Toreach
8、anoptimalgener-ationschedulingproblemisperformedinasimplifiedgenerationsystem.Theresultsshowthatapropergeneratingscheduleforationscheduleunderafuzzyenvironment,thetotalfuelcost,eachunitcanbereachedusingtheproposedmethod.loa