在线经济调度的鲁棒优化方法研究

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1、万方数据山东大学硕士学位论文ABSTRACTWindpower，photovoltaicandothernewenergypowerwhicharerenewableandnon-pollution，areusefultorelievetheshortageofenergy．However，affectedbyclimate，environmentandotherfactors，thenewenergypowergenerationhasobviousrandomnessandintermiRency．Largescalenewenerg

2、ypowerintegrationwillincreasetheuncertaintyofpowersystemandbringhiddendangertothepowersystemoperation．Thus，thereismuchsignificanceonthestudyofuncertaintydispatch．Manykindsofuncertaintyoptimizationmethods，suchasstochasticprogramming，fuzzyprogrammingandrobustoptimization，ar

3、eusedinreal-timedispatchofpowersystem．Basedonprobabilitydistributionofuncertainvariables，probabilisticallyoptimalsolutionscanbeobtainedbystochasticprogramming，afterconsideringallrandomscenarios．However,thedifficultiesinobtainingaccurateprobabilitiesdistributionfunctionsan

4、dcomputationalcomplexitylimititsapplication．Fuzzyprogrammingusessubordinatingdegreefunctiontoreflecttheattitudeofthedecision·makerofuncertaintyvariablesandtheirinfluence．Bymaximizingthemembershipvalues，optimalsolutionsCanbeobtained．However，thesolutionsareaffectedobviously

5、bythesubordinatingdegreefunction，whichwillleadtosubjectivesolutions．Unliketheabovetwomethods，robustoptimizationneedsnoprobabilitiesdistributionfunctionsandthesolutionshavenosubjectivityofthedecision·maker．Instead，ROCancapturerobustoptimizationresultswithrespecttoagivendis

6、turbancerangebysatisfyingtheworstcasewithintherange．Currently，thereareseveralfollowingissuesofrobustreal-timedispatch：①Asthefastdevelopmentofnewenergyresources，depressingcapacityofthecontrollableunitscannotmatchingthenewenergyintegration．Fullyacceptedmodeldoesnotconformto

7、thereality．②Real-timedispatchmodelaremostlyfocusingonsecurity，whichwillmakeitmoreconservative．Thoughmanystudiesonimprovingconservativelevelofthemodelaredone，therearestillpromotionspaces．③Mostmodelsusedirect—currentflowtoexpresstransmissionconstraints，however，thetrueinject

8、ionshiftIII万方数据山东大学硕士学位论文factorshasmoreuncertaintiescomparedwithdirect-currentflowmodel．Thispart