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ID:32064510
大小:2.95 MB
页数:57页
时间:2019-01-31
《考虑三峡和特高压的湖北电网多级协调优化调度分析》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、万方数据华北电力大学硕士学位论文AbstractHubeigridlocatesinthecentralpositionofpowergrid,shoulderthetransmissiondutyofThreeGorges,northwestwindpowerandUHV.Butoccasionallylarge—scalefluctuationsinlong—distancetransmissionwillcarryoutgreatdifficultiesforthedispatchingofHubeig
2、rid.Therefore,itisnecessaryforHubeitooptimizetheallocationofresources,andachievethegoalofthemaximizeabsorptionofcleanenergy.Multilevelcoordinationoptimizationdispatchingmodelswillbeproposedinthisthesis.First,inordertofacilitatetheconstructionandsolvingsched
3、ulingmodel,thecurrentdispatchingmodelandthecorrespondingoptimizationalgorithmsarereviewedinthisthesis.Summarizedthefactorsthatneededtobeconsideredoptimal,includeloadforecasting,respectively,unitcommitment,powerdistribution,hydrothermalcoordination,securityc
4、onstraints,andenvironmentalissues.Constructmulti—levelcoordinationofoptimaldispatchingmodel,whichisthepremiseofsafety,economy,energy,environmentalprotectionasoptimizationobjectives,inordertothereasonableallocationoflocalresourcesandthecleanenergyabsorption.
5、Secondly,onthebasisoftheparametersrequiredtobuildmulti-levelcoordinationoptimizationdispatchingmodelisanalyzed.Thefirstistoanalyzetheloadcharacteristicsandthefeatureofcontactline,digouttheexistenceofseasons,highlightsthepressureofabilitytoadjustmentwhichHub
6、eigridfacedinwetseason.Andthesecond,reduceunnecessaryreservecapacityaccordingtoanalyzefluctuationrangeofthecontactline.Third,fortheuncertainwindpower,constructtheassociationrulesbetweenwindspeedandwindpowerthebasedoncloudtheory,effectivelyreducethepredictio
7、nerrorcausedbymutationsinthewindspeed.Finally,thealternateanalyticalmethodsisproposed,thenidentifythreetypicalscenariosforwarning,enhancethesecurityofthepower酣d.Finally,constructflexibledispatchingoptimizationmodel,whichoptimizethecontactlineofThreeGorges.A
8、tfirst,theobjectivefunctionandconstraintsindifferentscenariosareanalysed,whichincludemodelsforsafetymargin,maximumabsorptionoftheThreeGorgesandmaximumabsorptionofcleanenergy;then,basedontheresultofopti
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