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ID:31978791
大小:2.19 MB
页数:56页
时间:2019-01-30
《基于机会约束规划的梯级水电站短期优化调度》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、profitandriskarecoordinatedpreferablyaccordingtothepracticalsystem,andtheoptimizationofpoweroutputforcascadehydroplantsisestablishedbythemethoddeveloped.Anovelmodelofriskmanagementforshort-termschedulingoptimizationofhydrothermalpowersystembasedonchance—constrainedprogrammingispresente
2、dinthispaper.Coordinatedrelationshipbetweenday·aheadtradingandreal·timetrading,operationalconstraintsofhydrothermalpowersystem,anduncertaintyinhydrothermalpowersystemareconsideredinanintegratedfashion.Thisproposalmodelincreasesgenerationbenefitsofhydroelectricpowerplants,reducesoperati
3、oncostsofthermalpowerplants,advancescomprehensivebenefitsofpowersystems,andprovidesanovelresearchthoughtforhydrothermalpowersystemsshort-termoptimalschedulingproblem.ToovercometheshortcomingofeasilylocaloptimumofPSO,ahybridparticleswarnloptimization(HPSO),inwhichthecatastrophetheoryand
4、chaosoptimizationwasembeddedintoPSO,isalsopresentedinthispaper.SincetheideasofPSOandcatastrophetheoryareinspiredbynaturalconcepts,itprovidesallideathatthestagnationofevolutionarystrategiesofPSOmaybedescribedbycatastrophetheory.ThelogisticmapofchaosisusedtOdisjointheparticles,whicharecl
5、osetoeachotheraroundalocalminimumaccordingtotheergodicity,stochasticpropertyandregularityofchaos.Thedefinitionofglobalconvergenceofstochasticalgorithmisdefinedinthepaper,andthealgorithmpresentedisprovedtOconvergetotheglobaloptimizationsolutionwithprobabilityoneusingLebesguemeasure.Thei
6、mprovementofcommunitydiversityandsearchingspaceofPSOisachieved,andtheproposalstrategyisasimpleeffectiveapproachtosolvenonlinearprogrammingproblemwithcomplexconstraintconditions.ThemodelpresentedissolvedusingacombinationofHPSOandMonteCarlosimulationbecauseoftheadvantagesofHPSOsuchassimp
7、leconcept,easyimplementationandrobustness.TheresultshaveshowedthatthecombinationVofHPSOandMonteCarlosimulationforshort—termschedulingoptimizationcascadehydroplantsisversatileandefficient.Keywords:Cascadehydroplants;Hydrothermalpowersystem;Short-termoptimizationscheduling;Uncertainty;
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