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ID:31989598
大小:1.99 MB
页数:60页
时间:2019-01-30
《考虑随机性的微电网优化运行-研究》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、西南交通大学硕士研究生学位论文第ll页AbstractEnergycrisisisahottopicsincethenewcentury.Thedevelopmentofnewenergy,newenergytechnologyresearchanditseffectiveutilizationbecomeanurgentproblem.Renewableenergyismoreeconomic,moreenvironmental,andmorereliablethanfossilenergyasanalternativetofossil
2、energy.Inthemicrogrid,inordertogiveitsfullplayandmakegooduseofrenewableenergyunits,thereasonablearrangementforpoweroutputofrenewableenergyunitsbecomesessentialtooptimaloperationofmicrogrid.Thepoweroutputofrenewableenergyunitsisinfluencedbytherandomnesssuchasnature.Thispap
3、erstudiedtheoptimaloperationofmicrogridconsideringtherandomnessinmicrogrid.Firstly,thepoweroutputmodelof谢ndturbineandphotovoltaicisestablishedbasedontheprobabilitymodelofwindspeedandlightintensity.Thepoweroutputmodelandthepollutantemissionsmodelofdieselengineandmicroturbi
4、nearefoundedfortheyarethemainsourcesofpollutantemissionsinmicrogrid.Also,thesteady—stateoutputmodelofbatteryandfuelcellareestablished.Undertheformermodels,theeconomicandenvironmentaloptimaloperationmodelisbuiltup.Secondly,theoptimaloperationmodelofthemicro—gridisamulti-va
5、riable,multi-constraint,multi—objective,non—linearstochasticoptimizationmodel.Thesolutionofthemodelinvolvestwoissues:dealingwiththerandomvariablesandsolvingthemodel.Tothepreviousquestion,pointestimatemethodWasusedaccordingtoanalyzingtheadvantagesanddisadvantagesofcurrentm
6、athematicalmethods.Onthelatterissue,intermsofconvergenceandtheabilitytoexpandnewsolutionoftheintelligentalgorithms,theartificialimmunealgorithmisselected.Bymeansofaddingchaosmutation,theabilitytoexpandnewsolutionoftheartificialimmunealgorithmisenhanced.Multi—objectiveopti
7、mizationresultisasetofParetooptimalsolution,theParetosolutionswererankedaccordingtothemultipleattributedecisionmaking,whichprovidesausefulreferenceforpolicymakers.Finally,atypicalmicrogddisselectedandtheoptimizationresultisverifiedandanalyzed.Fourcasesweremodeledincluding
8、minimizingtheoperatingcost,minimizingthepollutants,deterministicmodelandprobabilisticmodel.There
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