简介:摘要:继电保护装置是电力系统自动化的重要组成部分, 是保证电力设备安全、可靠运行的重要措施。对继电保护装置能否正确、可靠动作进行检验, 即通常所说的继电保护的传动试验。继电器保护装置整组动作试验是继电器保护装置校验、整定、检查工作内容之一,也是关键环节、重要项目、必经的程序,绝不可随便简化或免试。否则,各继电器校验、整定的再好而未做整组动作试验,既属违章,又对整个继电保护回路包括断路器跳闸动作在内的可靠性令人担忧。它是提高继电保护装置本身的运行水平和安全供电的可靠保证。所以,此项工作非同小可,切不可轻率处置,继电保护装置整组动作试验的各种方法及对其分析比较:
简介:2000HPtractor-trailerforthe21stcentury;AAnImprovedDirectTorqueControlforHighEfficiencyElectricalInductionMotorVehicleDrive;Adoubly-fedinductionmachinedifferentialdrivemodelforautomobiles;AHighCostPerformanceElectricBikeDriveSystem;AMultifunctionalDC-DCConverterForanEVDriveSystem;ANewDoublySalientPermanentMagnetMotorforElectricVehicles;ANewRotorFluxObserverforEVInductionMotorDrives.
简介:Effectiveproductiontechniquesdesignedtoimprovethecontactfatiguestrengthofautomatictransmissiongearteeth;Highfrequencygearwhinecontrolbydriveshaftdesignoptimization;Layshafitransmissiongearratioselection;Magnetoelastictorquesensorutilizingathermal-sprayedsense-elementforautomotivetransmissionapplications;TheAutarkHybridVehicle-OptimalEngineOperation……
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简介:ATrialProductionofSmallSizeUltra-HighSpeedDriveSystem,Adaptiveandrobusttechniquesfortorqueandrotorfluxcontrolofinductionmotordrivesforrailwayapplications,Air-drivenpumpsincreaseflow-withsafety,Allison'sHybridDriveSystemforBus,Anelectricdriveforthewithdrawalrollersofacontinuous-castingmachine,Anidentificationofthedynamicparametersofelectricdrives,AninnovativemountingsystemfortheTransaxleelectricalpowertraindrivingfileVolkswagenE-Golf。
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简介:Adeterministicelastohydrodynamiclubricationmodelofhigh-speedrotorcrafttransmissioncomponents;Afiniteelementmethodforthedynamicanalysisofautomatictransmissiongearshittingwithafour-degree-of-freedomplanetarygearsetelement;ANewDynamicModelofHysteresisinHarmonicDrives;Anintegratedenvironmentformodeling,simulationandcontrolofharmonicdrivesystems;DesignAndApplicationOfCrownWheels
简介:摘要齿轮传动被广泛应用到我国的机械传动中,其明显的特点为瞬时传动比恒定、传动效率高。在人们日常生活和生产中,许多场合选用齿轮来传动。因此,在文章中,通过对齿轮结构的设计分析,详细研究其传动精度,理解齿轮转动的基本失效方式,并探讨齿轮疲劳强度,以达到对齿轮传动工作的整体把握。