简介:Westudiedtheconjunctionpracticalstabilityandcontrollabilityoflarge-scaleimpulsivecontrolsystemsbyusingthecomparisonsystemsandvectorLyapunovfunctions.Thenthelessconservativesufficientconditionsforconjunctionpracticalstabilityandcontrollabilityoflarge-scaleimpulsivecontrolsystemwereobtained.
简介:Inordertocontrolthelarge-scaleurbantrafficnetworkthroughhierarchicalordecentralizedmethods,itisnecessarytoexploitanetworkpartitionmethod,whichshouldbebotheffectiveinextractingsubnetworksandfasttocompute.Inthispaper,anewapproachtocalculatethecorrelationdegree,whichdeterminesthedesireforinterconnectionbetweentwoadjacentintersections,isfirstproposed.Itisusedasaweightofalinkinanurbantrafficnetwork,whichconsidersboththephysicalcharacteristicsandthedynamictrafficinformationofthelink.Then,afastnetworkdivisionapproachbyoptimizingthemodularity,whichisacriteriontodistinguishthequalityofthepartitionresults,isappliedtoidentifythesubnetworksforlarge-scaleurbantrafficnetworks.Finally,anapplicationtoaspecifiedurbantrafficnetworkisinvestigatedusingtheproposedalgorithm.Theresultsshowthatitisaneffectiveandefficientmethodforpartitioningurbantrafficnetworksautomaticallyinrealworld.
简介:Thispaperstudiestheoptimalcontrolwithzerosteady-stateerrorproblemfornonlinearlarge-scalesystemsaffectedbyexternalpersistentdisturbances.Thenonlinearlarge-scalesystemistransformedintoNnonlinearsubsystemswithinterconnectterms.Basedontheinternalmodelprinciple,adisturbancecompensatorisconstructedsuchthattheithsubsystemwithexternalpersistentdisturbancesistransformedintoanaugmentedsubsystemwithoutdisturbances.Accordingtothesensitivityapproach,theoptimaltrackingcontrollawfortheithnonlinearsubsystemcanbeobtained.Theoptimaltrackingcontrollawforthenonlinearlarge-scalesystemscanbeobtained.Anumericalsimulationshowsthatthemethodiseffective.
简介:Large-scalewindturbinegeneratorsystemshavestrongnonlinearmultivariablecharacteristicswithmanyuncertainfactorsanddisturbances.Automaticcontroliscrucialfortheefficiencyandreliabilityofwindturbines.Onthebasisofsimplifiedandpropermodelofvariablespeedvariablepitchwindturbines,theeffectivewindspeedisestimatedusingextendedKalmanfilter.Intelligentcontrolschemesproposedinthepaperincludetwoloopswhichoperateinsynchronismwitheachother.Atbelow-ratedwindspeed,theinnerloopadoptsadaptivefuzzycontrolbasedonvariableuniverseforgeneratortorqueregulationtorealizemaximumwindenergycapture.Atabove-ratedwindspeed,acontrollerbasedonleastsquaresupportvectormachineisproposedtoadjustpitchangleandkeepratedoutputpower.Thesimulationshowstheeffectivenessoftheintelligentcontrol.
简介:Intheprocedureofthesteady-statehierarchicaloptimizationwithfeedbackforlarge-scaleindustrialprocesses,asequenceofset-pointchangeswithdifferentmagnitudesiscarriedoutontheoptimizationlayer.Toimprovethedynamicperformanceoftransientresponsedrivenbytheset-pointchanges,afilter-basediterativelearningcontrolstrategyisproposed.Intheproposedupdatinglaw,alocal-symmetric-integraloperatorisadoptedforeliminatingthemeasurementnoiseofoutputinformation,asetofdesiredtrajectoriesarespecifiedaccordingtotheset-pointchangessequence,thecurrentcontrolinputisiterativelyachievedbyutilizingsmoothedoutputerrortomodifyitscontrolinputatpreviousiteration,towhichtheamplifiedcoefficientsrelatedtothedifferentmagnitudesofset-pointchangesareintroduced.Theconvergenceofthealgorithmisconductedbyincorporatingfrequency-domaintechniqueintotime-domainanalysis.Numnericalsimulationdemonstratestheeffectivenessoftheproposedstrategy.
简介:由认为城市的下水道网络的流动控制最小化抽水站的电消费,为精力积蓄的分解协作策略在这篇论文基于网络社区分割被开发。描绘城市的下水道网络的稳态流的一个数学模型首先被构造,由有作为限制捕获的结构交通能力的一套代数学的方程组成。因为下水道网络没一般来说有明显的自然层次结构,识别聚类的组是很困难的。通过计算每个边的between海角的一条快网络部门途径成功地被使用与任意的配置识别这些组和一个下水道网络然后能被分解成子网。由集成子网的联合限制,原来的问题根据网络分解被分开成N优化潜水艇问题。每个潜水艇问题局部地被解决,潜水艇问题的答案被协调形成一个适当全球答案。最后,到一个指定大规模下水道网络的一个应用程序也被调查表明建议算法的有效性。