大规模电力系统低频振荡分析与广域自适应控制研究(8)

2025-06-15

山东大学博士学位论义

hasgoodnumericalstabilityandlowtimecomplexity,whichprovidesbasisfor‘‘control’’in“controlwhileidentification”thought.

SimulationresultsoftheChinaEPRI8-machine36-bussystemdemonstratethattheproposedon -linerecursiveclosed- loopidentificationalgorithmCaneffectivelyidentifyand

lowfrequencytrackreduced.orderstatespacemodelwhichcontainssystem

oscillationmodes,anddominantCanbeusedtoadjustparametersofsupplementarydampingcontrolleron-line.Additionally,supplementarydampingcontrollerCaneffectivelydampsystemintearealowfrequencyoscillations.

3)Witll

intotheregardstoshortcomingofoptimalcontrolwhichcannottakecontrolconstraintsadaptiveoptimization,wide-areadampingcontrolstrategybasedonmodelpredictivecontrol(MPC)isproposed,whichattempts

identification'’thought.Basedontosolving‘‘control’’in‘‘controlwhileidentifiedmodel,systemoutputdisturbancemodelis

topreventoutputsobtainedbyaugmentingsystemstateswithoutputdisturbances

steady.stateoffsets.Kalmanfilterisused

Accordingtotofromestimatestatestheaugmentedmodel.theidentified

anmodel,predictiveequationsforclosed loopsystemarefunctionrepresentingformulated.Thenobjectivethecostofdeviationofsystem

responsesfromthereferencetrajectoryandthecostofimposingdampingcontrolsin

oninfinitehorizonisestablished.Consideringconstraintscontrolinput,optimalcontrol

usesCanbeobtainedbysolvingthisoptimalcontrolproblemwhichcurrentstateofpower

aresystemastheinitialstate.Onlinemodelidentificationandcontroloptimizationrepeated

ineachtimeinterval.Theproposedmethodisanorganicintegrationofonlinemodelidentificationandonlineupdatingcontrol

powersystemlowfrequency

、析thfixed

controlparameters.Itareaccomplishesadaptivecontrolofoscillation.Thus,theofflineidentificationtovariationinherentshortcomingsofcontrollersparametersbasedonovercomeandtheproblemoftheperformance

aredegradationdueofthecomplexoperationconditionsandtime-varyinganduncertaincharacteristicofsystemofcontrolparametersaresolved.Negativeeffectsavoidedbyadoptingmodelprediction,recedingoptimizationandfeedback

.compensationstrategyinthismethod.

SimulationresultsoftheChinaEPRI8-machine36-bussystemdemonstratethattimeconsumptionforupdatingofsystem

lessthanstatespacemodelandmodelpredictivecontrollawissamplinginterval.Thus,modelpredictivedampingcontrollerssatisfyrequirementsforonlineapplication.It

oscillationmodes.ItalsoCaneffectivelydampinter-arealowfrequencytohavetheabilitycoordinatewithPSSsandothermodelⅥI


大规模电力系统低频振荡分析与广域自适应控制研究(8).doc 将本文的Word文档下载到电脑 下载失败或者文档不完整,请联系客服人员解决!

下一篇:七年级历史与社会下册第六单元一方水土养一方人第四课《青藏地区

相关阅读
本类排行
× 游客快捷下载通道(下载后可以自由复制和排版)

下载本文档需要支付 7

支付方式:

开通VIP包月会员 特价:29元/月

注:下载文档有可能“只有目录或者内容不全”等情况,请下载之前注意辨别,如果您已付费且无法下载或内容有问题,请联系我们协助你处理。
微信:xuecool-com QQ:370150219