外文翻译--基于优化的牛顿—拉夫逊法和牛顿法的潮流计算

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1、外文翻译--基于优化的牛顿—拉夫逊法和牛顿法的潮流计算英文文献PowerFlowCalculationbyCombinationofNewton-RaphsonMethodandNewton’sMethodinOptimization.AndreyPazderin,SergeyYuferevURALSTATETECHNICALUNIVERSITY?UPIE-mail:pav@//0>.,usv@//.Abstract--Inthispaper,theapplicationoftheNewton’smeth

2、odinoptimizationforpowerflowcalculationisconsidered.Convergenceconditionsofthesuggestedmethodusinganexampleofathree-machinesystemareinvestigated.Itisshown,thatthemethodallowstocalculatenon-existentstatepointsandautomaticallypullsthemontotheboundaryofpower

3、flowexistencedomain.AcombinedmethodwhichiscomposedofNewton-RaphsonmethodandNewton’smethodinoptimizationispresentedinthepaper.IndexTerms?Newtonmethod,Hessianmatrix,convergenceofnumericalmethods,steadystatestabilityⅠ.INTRODUCTIONThesolutionofthepowerflowpro

4、blemisthebasisonwhichotherproblemsofmanagingtheoperationanddevelopmentofelectricalpowersystemsEPSaresolved.Thecomplexityoftheproblemofpowerflowcalculationisattributedtononlinearityofsteady-stateequationssystemanditshighdimensionality,whichinvolvesiterativ

5、emethods.Thebasicproblemofthepowerflowcalculationisthatofthesolutionfeasibilityanditerativeprocessconvergence[1].Thedesiretofindasolutionwhichwouldbeontheboundaryoftheexistencedomainwhenthegivennodalcapacitiesareoutsidetheexistencedomainofthesolution,andi

6、tisrequiredtopullthestatepointbackontothefeasibilityboundary,motivatestodevelopmethodsandalgorithmsforpowerflowcalculation,providingreliableconvergencetothesolution.ThealgorithmforthepowerflowcalculationbasedontheNewton'smethodinoptimizationallowstofindas

7、olutionforthesituationwheninitialdataareoutsidetheexistencedomainandtopulltheoperationpointontothefeasibilityboundarybyanoptimalpath.AlsoitispossibletoestimateastaticstabilitymarginbyutilizingNewton'smethodinoptimization.AsthealgorithmbasedontheNewton’sme

8、thodinoptimizationhasconsiderablecomputationalcostandpowercontrolcannotberealizedinallnodes,thealgorithmbasedonthecombinationoftheNewton-RaphsonmethodsandtheNewton’smethodinoptimizationisofferedtobeutilizedforcalcul