考虑三峡和特高压的湖北电网多级协调优化调度分析

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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