简介:许多人都喜欢看小说,但小说究竟是什么呢?Along,imaginaryprosestoryaboutpeo-pleisusuallycalledanovel.Itcanbeaboutanykindofman,wom-an,orchild.Itcanbeaboutkings,orChicagonewsboys,orhousewives.TheFrenchman,VictorHugo(雨果),wrotehisnovelLesMiserables(《悲惨世界》)aboutapoormanwhostolealoafofbreadtokeepfromstarving.TheAmerican,ErnestHemingway(海明威),wroteAfarewelltoArms(《永别了,武器》)aboutayoungAmericanwithnurseduringWorldWarI.Anovelcantellthestor...
简介:ACalculationoftheMagneticCircuitofaVariable-PoleSynchronousGenerator;Acontroldesignforaclassofnonlinearsystemsusinglineal-techniques;Aframeworktojustifytheneglectofarmaturetransientsinpowersystemstabilityanalysis;ASimpleMaximumPowerPointTrackerforGridconnectedVariableSpeedWindEnergyConversionSystemwithReducedSwitchCountPowerConverters;Athermalmodelforthewater-cooledstatorbarsofthesynchronousgenerator;AdaptiveCriticDesignsandtheirImplementationsonDifferentNeuralNetworkArchitectures;
简介:ConjugateHeatTransferAnalysisofaSalientPoleRotorinanAirCooledSynchronousGenerator,ConstraintsfortheInterconnectionofDistributedGenerationinRadialDistributionSystems,ControlofdynamicovervoltageduetoloadrejectionbyanadaptiveneuralnetworkSTATCOM,Controlofself-excitedinductiongenerators,Dampingofthelow-frequencyoscillationsofthegenerator:dynamicinteractionsandtheeffectivenessofthecontrollers,Designandanalysisof42-Vpermanent-magnetgeneratorforautomotiveapplications,Designofsecondorderslidingmodecontrollerforsynchronousgeneratorsbasedonsingularperturbationmethod,Experimentalstudieswithsimpleneuro-controllerbasedexcitationcontroller。
简介:[摘要 ] 华能滇东电厂 4×600MW汽轮机组系东方汽轮机厂制造。配套给水系统配置两台 50%负荷的汽动给水泵和一台 30%负荷的电动给水泵。汽动给水泵使用上海电力修造厂生产的圆筒芯包泵,轴端密封采用迷宫密封结构,高压侧内腔通过卸荷水管道接至除氧器下降管汽泵入口门前,密封水供水取自凝杂水管道,是通过调节阀保证密封水与缷荷水之间 130kpa左右的压差来实现密封功能的,低压侧密封水回水通过多级水封回至凝汽器或经旁路直接排至地沟。
简介:摘要通过对#4机A汽动给水泵驱动端轴振振动增大异常处理过程的叙述,分析联膜片轴器损耗件劣化原因,主要是金属弹性元件即膜片承受交变应力导致金属疲劳刚度下降,总结描述金属膜片联轴器出现故障的异常特征,总结出同类型给水泵、前置泵联轴器膜片的故障类型及处理方法,并提出相应的防范措施;通过分析归纳,为处理金属弹性元件挠性联轴器故障提供处理依据,为非金属弹性元件挠性联轴器故障提供分析思路,为其他类型的联轴器故障提供了相应的分析方向。火力发电厂泵与风机数量众多,联轴器随处可见,解决一类联轴器故障将对消除设备隐患,保障设备安全运行有一定的参考意义。