资源描述：
《A Power Flow Method Using a New Bus Type for Computing Steady-State Voltage Stability Margins.pdf》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、958IEEETRANSACTIONSONPOWERSYSTEMS,VOL.29,NO.2,MARCH2014APowerFlowMethodUsingaNewBusTypeforComputingSteady-StateVoltageStabilityMarginsScottG.Ghiocel,StudentMember,IEEE,andJoeH.Chow,Fellow,IEEEAbstract—Insteady-statevoltagestabilityanalysis,itisconvergeasthemaximumloadabilitypo
2、intisreached.Inthewell-knownthatastheloadisincreasedtowardthemaximumunconstrainedcase,theJacobianmatrixbecomessingularloadingcondition,theconventionalNewton-Raphsonpowerflowatmaximumloading,andthepowerflowsolutionwillnotJacobianmatrixbecomesincreasinglyill-conditioned.Asaresult,
3、convergewhenthesmallestsingularvalueofbecomestoothepowerflowfailstoconvergebeforereachingthemaximumsmall[4],[5].loadingcondition.Tocircumventthissingularityproblem,con-tinuationpowerflowmethodshavebeendeveloped.IntheseTocircumventthissingularityproblem,continuationpowermethods,t
4、hesizeoftheJacobianmatrixisincreasedbyone,andflowmethodsbasedonhomotopytechniqueshavebeendevel-theJacobianmatrixbecomesnon-singularwithasuitablechoiceoped[6],[7].Inthisapproach,aload-increasecontinuationpa-ofthecontinuationparameter.Inthispaper,weproposeanewrameterisintroduceda
5、sanadditionalvariable.Asaresult,methodtodirectlyeliminatethesingularitybyreformulatingthethesizeoftheJacobianmatrixisincreasedbyone,whichbe-powerflowproblem.Thecentralideaistointroduceanbuscomesnon-singularwithasuitablechoiceofthecontinuationinwhichthebusangleandthereactivepowe
6、rconsumptionofaloadbusarespecified.Forsteady-statevoltagestabilityanalysis,parameter.Thecontinuationpowerflowissolvedinatwo-stepthevoltageangleattheloadbuscanbevariedtocontrolpowerprocesswithapredictorstepandacorrectorstep,andrequirestransfertotheload,ratherthanspecifyingtheload
7、poweritself.additionalmanipulationsandcomputation[8].Duringthecor-Foranbus,thepowerflowformulationconsistsofonlytherectorstep,thecontinuationmethodstillneedstodealwithareactivepowerequation,thusreducingthesizeoftheJacobianpoorlyconditionedJacobian.matrixbyone.ThisreducedJacobia
8、nmatrixisnonsingularattheInthispaper,weproposeanewpowerflowmet
