最优化技术在海上风电规划与电力市场定价中的应用ApplicationofOptimizationTechniquesinOffshoreWindPowerPlanningandElectricityMarketPricingFengGaoTsinghuaSichuanEnergyInternetResearchInstituteNov.022024EvaluationandPlanningfortheCarryingCapacityofLargeScaleOffshoreWindPowerintheReceivingGrid◆Rapiddevelopmentofoffshorewindpower:Bytheendof2022,thetotalinstalledcapacityofoffshorewindpowerintheworldreached57.6GW,andthecumulativeinstalledcapacityofoffshorewindpowerinChinareached25.6GW.◆ThekeyareaofoffshorewindpowerdevelopmentinChina:Bytheendof2022,Jiangsuhadatotalinstalledcapacityof11.8GW,rankingfirst.By2025,theinstalledcapacityofoffshorewindpowerinEastChinawillfurtherincreaseto32.2GW,andtheannualpowergenerationwillexceed90billionkWh.世界主要国家海上风电累计装机(GW)英国德国荷兰我国主要省份海上风电累计装机(GWEUandChinaoffshorewinddevelopmentplans,Current&2040GlobalandChinaoffshorewindinstallationcapacity(asoftheendI欧洲20401.Background50江苏30201001510powerof2022)丹麦)现状204012568上海广东浙江中国瑞典福建辽宁泥状000225930■Thetraditionalplanningmethodologyevaluatesthecarryingcapacityofwindpowerwithsometypical&deterministicscenarios,butlacksofcomprehensiveresearchontheinteractionbetweenwindgenerationandthereceivingpowergrid;■Traditionalplanningschemesoftenusestrengtheningthegridasthemainsolutiontoimprovethecarryingcapacity,anditwillinevitablyfacethedilemmaofdiminishingmarginalbenefitsofinvestmentwithoffshorewindincreasing.100502L网免aKZ2R电场阳-2L2-50200300400500700100014001900纵率(Hz)2001000-2L5服放-22风U塘到饮-ZL/2200300400500700100014001900频率(H₂)受端电网宽频特性分析江苏省级电网规划分析系统Lackofefficientanalysismethodsforstudyingwide-bandoscillationcharacteristicsbetweenoffshorewindgenerationandthereceivinggrid■TheinteractionbetweenoffshorewindfarmsandthereceivingACgridiscomplex,andtheriskofwide-bandoscillationofthepowergridisaggravated,soitisnecessarytoevaluateitintheplanningstage;Lackofcomprehensiveandsystematicassessmentandplanningschemesforoffshorewindpowercarryingcapacity2.TechnicalDifficulties酬抗帽伫()而挑糖值(de)-200100-1001000Theevaluationandplanningmethodologyforcarryingcapacityofreceivingpowergridwithlarge-scaleoffshorewindpowerpenetration■Establishamathematicalmodelthatcomprehensivelyconsiders,suchas:flexibilityofthermalpowerunits,newtransmissionelement,stabilitycriteria,systemwide-bandfrequencycharacteristics,toevaluatethecarryingcapacityofthereceivingpowergridforoffshorewind.■Forplanningscenarios,thewide-bandcharacteristicsoftheoffshorewindpowerandthereceivingpowergridareanalyzedbytheelectromagnetictransientsimulationandfastfrequencyscreeningalgorithm.Fastfrequencyscreeningmethodologyforsystemwide-bandoscillationcharacteristicsComprehensiveassessmentstrategyforthecarryingcapacityofoffshorewindpowerIncreaseflexibilityofthermalpowerunits:Heat&Powerdecoupling,Coordinatedcontrolsystemoptimizationetc.3.ResearchTopics3.1AComprehensivePlanningModelObjective:Minimizethetotalcost-buildingconvertorstationforoffshorewindintegration,buildingnewtransmissionelements,andrenovatingthermalpowerplantsfordeeppeakshaving;·Constraint:Considertheconstraintsoffshorewindpoweraccessiblestations,networkexpansionlimits,thermalplantsflexibilitylimits,windpowerabandonedrate,powerflowequation(pre/afternetworkupgrade),security;DecisionVariable:Selectionofoffshorewindgenerationaccessib...