现代配电网络分析与优化问题分析

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1、AbstractABSTRACTThecharacteristicsofmoderndistributionnetworkareautomated,greenandsustainable.Ourultimategoalistobuildasmartdistributionnetwork.Inthisthesis,someproblemsonmoderndistributionnetworkanalysisandoptimizationwerestudied.Themethodsforanalyzingdistributionnetwork,whichincludesdeter

2、ministicpowerflowcalculatinandprobabilitypowerflowcalculation,wereimproved.Combinedwiththecharacteristicsofmoderndistributionnetwork,someoptimizationproblemsconsistofnetworkreconfiguration,reactivepoweroptimizationcontainingintermittentdistributedgenerations,sitingandsizingofdistributedphot

3、ovoltaicpowerstationwereresearched,andchemicalreactionoptimizationwasusedtosolvethesecomplexoptimizationproblems.InordertoimprovetheefficiencyofNewton-Raphsonpowerflowcalculation,somestudiesabouthowtomakefulluseofexistinghighperformancelinearalgebrapackageofNewton-Raphsonmethodweredone,andt

4、hevectorizationformulaofnodeadmittancematrixandJacobianmatrixweregiven.Tosimplifynetworkstratificationanditerativeprocessofforward/backwardsweeppowerflowcalculation,asweepiterativemethodfrombottomtoupandfromuptobottom,whichbasedonbreadthfirstadjacencylist,wasstudied.Accordingtothecharacteri

5、sticsofdistributionnetworkincludingintermittentdistributedgeneration,ananalyticalmethodbasedontotalprobabilityformulaforprobabilitypowerflowcalculationwasproposed.Theproposedmethodhasadvantageofhighpreciseandeasyparallelcomputation.ComparedtothemethodbasedoncumulantandGram-Charlierseries,th

6、efittedprobabilitydistributioncurvehasnoconvergenceproblemanddoesnotviolateprobabilityaxioms.Theseworksalsolaidthefoundationformoderndistributionnetworkoptimization.Todealwiththeconstraintofoperationtimesofallswitchesindynamicreconfigurationofdistributionnetwork,theoptimalfuzzyC-meanscluste

7、ringtechnologywasappliedtoclassifytheoperationstateinatimeintervalaccordingtotheintrinsicsimilarityofloaddatainapowerdistributionnetwork;thedynamicIIIAbstractreconfigurationofdistributionnetworkwasconvertedtothemultiplestaticreconfigurations,inwhichthelo