微网的经济运行优化研究

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1、万方数据东北大学硕士学位论文摘要明，本文提出的多目标求解方法是有效的，动态调度处理方法是合理的。关键词：微网经济运行；多目标；混合整数规划；e-约束法；NSGA-II万方数据AbstractAsaneffectiveorganizationformofdistributedpowerandapowerfulsupplementofconventionalpowerutility,microgridhasbecomeonedevelopmentdirectionofthesmartgridallo

2、vertheworld．Throughstudyingmicrogridoneconomicoperationoptimization，schedulingmodeandalgorithm，reasonablyarrangingtheworkingstateofmicrosourceandthedemandresponse，cansaveoperatingcostsandreducepollutantemissions．Inthisthesis，byadoptingtheideaofcentra

3、lizedhierarchicalcontrolandstudyingoncharacteristicsofdistributedpowersource，amulti—objectivenonlinearmixedintegerprogrammingmodelaboutmicrogrid’Seconomicoperationiscreated．Themodeltakestheminimumoperationcostsandminimumpollutantemissionsasthetarget，

4、taketheelectricquantitylimitandthecharge／dischargepowerlimitofstorageunit，maximumrampratelimitandminimumon—offtimelimitofmicrosourceintoaccountasvariousconstraintconditions．Atthesametime，bytakingtheon-offstatesofmicrosourceasdecisionvariables，itismor

5、ereasonabletodescribetheworkingstateofmicrosource，alsomakesthemodelbecomeamixedintegerprogrammingmodel．Formicrogrid’Sschedulingmode，thisthesisanalyzedthegrid—connectedmode，thegrid-isolatedmodewithcontrollableloadreductionstrategy，thepriorityschedulin

6、gmodeofmicrosourcewithelectricitypricepolicy．Tostrengthenstabilityofsystem，thisthesisraisedthepowerreservemodebyreservingcertainelectricquantityofstorageunitanditsrealizingmethod．Becausethemaximumramprateandminimumon—offtimeofmicrosource，theelectricq

7、uantityofstorageunitislimitted，theoptimizationofadjacenttimesectionshasastrongcoupling，thisthesisraisedaneffectivemeasuretoputthemicrogrid’Sschedulingfromdynamicschedulingintostaticscheduling．Aimingatthenonlinearandmixedintegercharacteristicsofmicrog

8、rid’Seconomicopermionmulti-objectiveoptimization，twosolutionsbasedonc—constrainedmethodandNSGA．IIiSproposedinthisthesis．Inthesolutionbasedon(-constrainedmethod，thebranchandboundalgorithmandinterior-pointalgorithmareappliedtosolvethesubproblemwhichhas