电力市场环境下基于最优潮流的输电容量充裕度研究

上海交通大学硕士学位论文电力市场环境下基于最优潮流的输电容量充裕度研究姓名：罗玮申请学位级别：硕士专业：电力系统及其自动化指导教师：严正20080101STUDYONTRASMISSIONADEQUACYBASEDONOPTIMALPOWERFLOWINELECRICITYMARKETABSTRACTTransmissioncapacityplaysasignificantroleinrealizingfaircompetitionandcontrollingoperationstabilityinbothpowersystemandelectricitymarket.Howtoaccuratelyassesstheadequacyoftransmissionandhowtomaximizethedemandsofallpartiesfromelectricitymarketarethekeytopicsconcernedbyorganizersandparticipantsinelectricitymarket.Thisthesisbasedonthecruciallinesinpowersystemasresearchobject,studiestheeffectofstabilitylimitoftransmissionlineontransmissionadequacyfromsecurityandreliabilityofsystemoperationbymeansofAC-OPF.Thedeductionisthattheproductofstabilitylimitfactorsandshadowpriceonsomelinecouldreflecttheeconomicvalue,bywhichthestabilitylimitintervalinsystemoperationisalsowellestimatedfrombothsecureandeconomicviewpoints.Inaddition,OPFproblemwithexpectedsecuritycostisdiscussed.Furthermore,withallmarketclearingresultsbasedonDC-OPF,therelationshipamongsystempurchasecost,shadowpriceonline,aswellasstabilitylimitoftransmissionlineisdiscussedundertheassumptionthatsystemcongestionsituationisgiven.Atlastthisthesisputsforwardmulti-levelmarketpowerindexbasedonmust-rungeneration.Numericalsimulatingresultshowsthatthismethodcouldrevealtheweaknessandcriticaloperationpointintransmissionnetwork.Theresultofthisthesiscouldnotonlyhelptofurnishthemarketrulesandbutalsoprovidereasonableevidencefortransmissionplanningofexpandingelectricitynetwork.KEYWORDS:PowerMarket,TransmissionCapacity,StabilityLimitofTransmissionLine,OptimalPowerFlow,MarketPower2008119□□“√”20081192008119–1–11.1–2–1.2ATCATCAvailableTransferCapabilityATC[1]ATCTTCTotalTransferCapabilityTRMTransmissionReliabilityMarginCBMCapacityBenefitMarginTRMCRMTTCATC–3–ATC[2]ATCATCATCCPF[3]continuationpowerflowATCCPFATC[4]SSC-ATC:staticsecurityconstrainedATCATCN11.3–4–1.3.1NEMMCONEMMCO[5]-[10]NationalElectricityMarketManagementCompanyLimitedANTSAnnualNationalTransmissionStatementNTFPsnationaltransmissionflowpathsANTSNTFPANTS102006NEMNationalElectricityMarket6NTFPsNEMMCO1ScopingStudies10NTFPNTFPJPBsNEMMCO–5–2VerificationStudies1.3.2UCTEUCTE[11]-[12]TheUnionfortheCo-ordinationofTransmissionofElectricity22UCTEUCTE31NTC231-1UCTE2005–6–1-1UCTEFig.1-1Cross-BorderCongestioninUCTE1-2[13]1-2UCTEFig.1-2CongestioninSpainfromUCTE’sView1.3.3BPABPA[14]-[15]BonnevillePowerAdministration–7–1-3/1-3Fig.1-3RelationshipamongAdequacy,ReliabilityandEconomyBPABPA123456–8–1.3.4NWPPNWPP[16]-[18]NorthwestPowerPool31NERC/WECCCD2SPSSPSSPSSPSSPSSPSSPS3–9–1.3.5PJMPJM[19]-[23]RAAReliabilityAssuranceAgreement10PJMPJMPJMPJMPJMPJMLOLEPJMLOLECETOCapacityEmergencyTransferObjectivesCETLCapacityEmergencyTransferLimitsCETOLOLE251LOLEPJMCETLCETLCETOCETO–10–CETLPJMPJM1.41ATC23OPF4OPF567–11–22.1OPFpuxf(p,u,x)=02-1ux–12–60[24]2.22.2.1xu[25]–13–123122.2.21()GiiNfKP∈=∑2-2GNs()iKPs()()GisiNisfKPKP∈≠=+∑2-32(,)()LijjiijNfPP∈=+∑2-4–14–LNminmin()sfP=U,θ2-53maxmax()()DGjjiijNiNfBPKP∈∈=−∑∑2-6DN()jjBPj()iiKPiminmin()iiiNGfKP∈=∑2-7()ff=u,x2-82.2.32-1p–15–()gu,x=02-92.2.41234567()≤hu,x02-10()()()min,s.t.f≤uxgu,x=0hu,x02-11–16–2.32.3.1Pθ2.3.2/Lagrange–17–2.3.31984Karmarkar[26]OPFLagrange2.3.4OPFPQ[27]PQ–18–3OPF3.1OPF3.1.1123.1.2123.1.3()minGNiiiFBP=∑3-1GNiPiiBi3.1.4–19–()1cossin0NpiGiLiijijijijijjgPPVVGBθθ==−−+=∑3-2()1cossin0NQiGiLiijijijijijjgQQVVBGθθ==−+−=∑3-3ijijθθθ=−iViθiGiPGiQiLiPLiQiijGijBpigQigij3.1.5minmaxGiGiGiPPP≤≤3-4minmaxGiGiGiQQQ≤≤3-5minmaxiiiVVV≤≤3-6()min2maxcossinBBijijijiijijijijijijijijyPPVGVVGByPθθ≤−++≤3-7maxGiPminGiPmaxGiQminGiQmaxiVminiVijPmaxBijPminBijPijBijyij–20–3.2OPF3-13-790OPFLagrange[28]-[31]LagrangeLagrange()()()()()maxmin1111maxminmax111minmax1()GGGGijNNNNPiPiQiQiupiGiuPiGilPiGiGilPiiiiiNNNuQiGiuQiGilQiGiGilQiuViiuViiiiiNlViiilViuPijijuPijiLFggPSPPPSQSQQQSVSVVVSyPSλλπππππππ=========−−+−−+−−+−−+−−+−−+−−+−∑∑∑∑∑∑∑∑()()minlnlnBijBijijNlPijijijlPijlkukijNkkPPyPSSSπµ∈∈−+−−−+∑∑∑∑3-8PiλQiλiLagrangeuPiπlPiπiLagrangeuQiπlQiπiLagrangeuViπlViπiLagrangeijuPπijlPπij–21–LagrangeNGNBNµukSlkSLagrange00PlPuPGGLFPPλππ∂∂=−+−=∂∂3-90QlQuQGGLFQQλππ∂∂=−+−=∂∂3-10TTTT0llQllPPQuVlVuPlPgPPgLVVVVVλλππππ∂∂∂∂∂=+−+−+=∂∂∂∂∂3-11TTTT0llQllPPQuPlPgPPgLλλππθθθθθ∂∂∂∂∂=+−+=∂∂∂∂∂3-120PPLgλ∂==∂3-130QQLgλ∂==∂3-14max0GuPGuPLPSPπ∂=−−=∂3-15min0GGlPlPLPPSπ∂=−−=∂3-16max0GuQGuQLQSQπ∂=−−=∂3-17min0GGlQlQLQQSπ∂=−−=∂3-18max0uVuVLVSVπ∂=−−=∂3-19–22–min0GlVlVLVVSπ∂=−−=∂3-20max0lBBllQllBuPLyPSPlNπ∂=−−=∈∂3-21min0llBBllluPBlPLPyPSlNπ∂=−−=∈∂3-223-21-3-22BBNB3-113-123-213-22lPLagrangeLagrange3-93-22KKTjy220GlPuPPGjjjjPFPyyyyππλ∂∂∂∂∂−+−=∂∂∂∂∂3-23220QlQuQGGjjjjQFQyyyyλππ∂∂∂∂∂−+−=∂∂∂∂∂3-243-113-12jy1T111111nPnPiPpiipppnPnpnnPPipiinnngggVVVwgVgwggVVVλλλλλ∂∂∂∂∂∂∂===∂∂∂∂∂∂∂∑∑LMOMMMML3-253-25–23–11T11nppnnnwwVVgVVwwVVλ∂∂∂∂∂∂=∂∂∂∂∂∂LMOML3-26niPkPkkjjiwgVVVλ∂∂∂=∂∂∂∑3-27T1111nnPkPkPkPkkknpPnnPkPkPkPkkknnnggVVVVgVVggVVVVλλλλλ∂∂∂∂∂∂∂∂∂∂==∂∂∂∂∂∂