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ID:34849414
大小:2.13 MB
页数:56页
时间:2019-03-12
《含风电场电力系统概率潮流模型研究及其在无功优化中的应用》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、AbstractWiththeincrementofcapacity,windfarmshavemoreandmoreresponsetothepoWtat"grid·Fherandomenergyoutputofwindpowergeneratorsandtheirdifferentproperties,whichcomparedwithtraditionalgenerators,makeagreatinfluenceonthedis砸butionofac脏veandreaetiVepowerflowandpowersystemvolmgestability.Thispaperisma
2、inlyabouttherandomenergyoutputofwindfarmsanddiscussestheinfluenceofwindfarmsonpowersystembasedonprobabilisticloadflowmodels.ThisPaperappliesanewmethod--thestochasticresponsesurfacemethod(SRSM)toanalyzetheimpactofwindfarmsonuncertaintiesofpowersystem.Polynomialexpressionsbetweenresponsesofsysteman
3、dparameterscanbeestablishedbythismethod.Comparedwiththetraditionalapproaches,thepresentedmethodcallobtainstatisticalinf0肋撕onwimlesssimulationtime.Aprobabilisticloadflowmodelandassessmentofvoltagestabilitymoddbasedonthismethodisestablished.AsimulationconductedforIEEE.14bussystemintegratedwithwindf
4、arms,demonstratesthevalidityofthesuggestedmethod.Onthebasis,themethodWasintroducedtosolvetheproblemofmulti—objeeavereactivepoweroptimizationofwindfarmbasedonaprobabilisticsystemmodel.Thispaper,combiningprobabilisticsystemmodelwithPareto.basedMulti.ObjectiveParticleSwarmOptimization(MOPSO)algorith
5、m,establishesamathematicmodelofreactivepoweroptimization,whichregardingtheminimizationofbusvoltagebeyondlimitsprobabilityandexpectationvalueofactivepowerlossesandthemaximizationofexpectationvalueofloadmarginasobjectivefunction.AsimulationconductedforIEEE..14bussystemintegratedwithwindfarmsreveals
6、thattheproposedmethodismorereasonablethantraditionaldetenninemethods.Theproposedmethodcanoverallconsidereffectsofwindspeedrandomness.sothatamorereasonablereactivepowerdispatchschemecouldbefound.Keywords:WindFarms;SRSM;Uncertainties;LoadMargin;MOPSO;ReactivePoWerOptimization西南交通大学硕士研究生学位论文第1lI页目录第
7、1章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.....:⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11.1课题研究背景及意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯...⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..11.2国内外研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.21.2.1风电并网研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯~21.2.2随机响应面法在电力系统中的应用现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯51.3本文主要研究内容⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯
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