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5 个结果
  • 简介:活跃时间表是之一最基本;在安排研究的生产的流行概念。为相同平行机器与工作的动态到达安排,在四个流行目的测量下面的活跃时间表的紧密的表演界限分别地在这篇论文被给。类似的分析方法;结论能被概括到静态的相同平行机器;单个机器安排问题。

  • 标签: 生产调度 时序安排 技术性能分析 机床作业进度表
  • 简介:ThisworkisaimedtorigorouslymanagevoltagesaturationandmaximumcurrentconstraintsinShuntActiveFilters.Inthisrespect,assuming'unconstrained'controlalgorithmshavealreadybeendefinedtoachievestandardobjectivesforsuchdevices(i.e.currenttrackingforharmoniccompensationandDC-busvoltageboundness),aplug-inunit,orientedtoextendthesystemoperatingregionandatthesametimepreservinggoodperformanceunderlargetransientsandoverloadconditions,ispresented.Thissolutionallowstoimproveavailability,robustnessandcomposabilityofShuntActiveFilters,whichareexpectedtobekeyfeaturesinpresentandnextgenerationcomplexandpossibly'smart'powergrids.Theproposedunitiscomposedbytwoparts.First,asuitableanti-windupstrategyisdefinedinordertodealwithcontrolinputsaturation.Itsmainpurposeistopreservetheoriginal'unconstrainederrordynamics',infaceofinputsaturation,whileguaranteeinglowcomputationalburdenandreducedperformanceimpairment(thelattergoal,inharmoniccompensationcontext,leadstorathernon-standardproblemformulation).Tothisaim,theanti-windupactsonthecurrentreferencesthroughasuitably-designedadditionaldynamics.Then,inordertocopewithcurrentlimitations,anadditionalstrategyhasbeendesigned;againthecurrentreferencesissuitablyshapedtocomplywiththefeaturesandboundsofthesystem,augmentedwiththeabove-mentionedanti-windupsolution.TheproposedschemecanbesimplyjoinedtoanykindofunconstrainedcontrolleradoptedtosteerShuntActiveFilters.Inthiswork,anInternal-Model-basedcurrentcontrollerisadoptedasabenchmarkcase.Theproposedapproachisvalidatethroughextensivesimulationtests.

  • 标签: SHUNT ACTIVE FILTERS power quality ANTI-WINDUP
  • 简介:这份报纸论述LMI为有围住标准的无常的抑制系统的基于的柔韧的H无穷控制计划。无常在H无穷标准和时间域限制的评估被合并。包括稳定性,H无穷表演和时间域限制的满足的柔韧的靠近环的性质被讨论。当要用体力地尊重安全联系了象好道路成立,有限暂停击和致动器浸透那样的限制时,2DOF季度汽车模型的分析和模拟结果在旅行舒适上显示出可能的改进。

  • 标签: 主动悬架 不确定系统 控制约束 范数有界不确定性 鲁棒 应用
  • 简介:活跃力量过滤器(APF)基于电压来源inverter(VSI)是为处理力量质量问题的重要措施之一。算术地,APF模型尽最大努力格子是典型的非线性的。被动的想法是一个强大的工具学习如此的一个非线性的系统的稳定。在这篇论文,四腿的APF的一个州空间的模型被导出,基于哪个为当前的追踪的一个新H无穷控制器从被动观点被建议。它能完成asymptotic不仅在L_2获得的意义追踪,而且骚乱变细。随后,保证theboundedness的一个足够的条件和DC电压的需要的平均数也被给。这个直接条件与电的电路的平衡力量的法律一致。在PSCADplatform上执行的模拟验证新途径的有效性。

  • 标签: 活性功率滤波器 APF 非线性系统 扰动衰减 电流跟踪控制
  • 简介:Frictiondragprimarilydeterminesthetotaldragoftransportsystems.ApromisingapproachtoreducedragathighReynoldsnumbers(>104)areactivetransversalsurfacewavesincombinationwithpassivemethodslikearibletsurface.Fortheapplicationintransportationsystemswithlargesurfacessuchasairplanes,shipsortrains,alargescaledistributedreal-timeactuatorandsensornetworkisrequired.Thisnetworkisresponsibleforprovidingconnectionsbetweenaglobalflowcontrolanddistributedactuatorsandsensors.ForthedevelopmentofthisnetworkweestablishedatfirstasmallscalenetworkmodelbasedonSimulinkandTrueTime.TodeterminetimescalesfornetworkeventsondifferentpackagesizeswesetupaRaspberryPibasedtestbedasaphysicalrepresentationofourfirstmodel.Thesetimescalesarereducedtotimedifferencesbetweenthedeterministicnetworkeventstoverifythebehaviorofourmodel.Experimentalresultswereimprovedbysynchronizingthetestbedwithsufficientprecision.Withthisapproachweassurealinkbetweenthelargescalemodelandthelaterconstructedmicrocontrollerbasedreal-timeactuatorandsensornetworkfordistributedactiveturbulentflowcontrol.

  • 标签: RASPBERRY PI TRUE Time DISTRIBUTED ACTUATOR