牵引逆变器故障处理

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1、PROPULSIONCONTROLELECTRONICS(PCE)FAULTHANDLINGPCE故障处理1SHL1.2Ex.Training2006GeneraldescriptionofFaultHandler故障处理器Principlefunctions功能Monitorfaults监视故障Establishevent/faulttype建立事件/故障类型Powercircuitprotection功率回路保护Faultloggingandindication故障记录显示Faultclearance故障清除ActivewhenPCE

2、isin当PCE在下列情况时有效Operationalmode工作模式Initialisationmode初始化模式Tractiontestmode牵引测试模式2SHL1.2Ex.Training2006FaultHandler故障处理器MonitorFaultsEstablishevent/faultTypeEventEstablishLogtypeLogagatestandardfault/eventstandardagateLogperterbographfault/eventNoneIndicateFault/Eventperturb

3、ographInhibitdevicepuslesFurtheractionreqOpenHSCB/LCNofurtherActionReqd.DonePowerCircuitProtectionFaultFault/eventLogandIndicationManagefaulthandlingDoneFaultClearanceFaultHandler3SHL1.2Ex.Training2006MonitorFault监视故障PCEmonitorsallinputsandoutputstodetermineifafaulthasoccur

4、redPCE监视全部输入和输出以决定是否有故障产生Hardwaredetection(fast-immediate)硬件检测（快-立即）inverterprotectionfaults逆变器保护故障Softwaredetection(slower-10-40msec)软件检测（较慢-10-40msec）4SHL1.2Ex.Training2006Establishevent/faulttype建立事件/故障类型PCEmustidentifyeventtypesothattherequiredactionstoprotectthepowerci

5、rcuitcanbecarriedoutPCE必须区分事件类型，以采取相应的动作保护功率回路An‘event’doesnotrequireanypowercircuitprotection,butshouldbelogged一个事件无需任何保护动作，但应当被记录egMotorandBraketrainlinesbothhigh例如：牵引个制动列车线都为高A‘fault’requiresactiontoprotectthepowercircuit一个故障要求有相应的动作保护功率回路5SHL1.2Ex.Training2006PowerCircu

6、itProtection功率回路的保护PCEperformsthefollowingneutralisingactionstoprotectthepowercircuitPCE提供以下动作Inhibitinverterpulses禁止逆变器脉冲Inhibitallpulses禁止全部脉冲Inhibitelectricbrake禁止电气制动Lockoutelectricbrake封锁电气制动OpenLCandCCC打开LC和CCCOpenHSCB,LCandCCC打开HSCB,LC和CCCIsolateinverter(openLCandCCC

7、untilreset)隔离逆变器(打开LC和CCC直到复位）Lockoutinverter(lockoutLCandCCC)封锁逆变器（封锁LC和CCC）Firesoftcrowbar触发软撬棒6SHL1.2Ex.Training2006InhibitInverterPulses禁止逆变脉冲Inverterandrheochopperinhibited逆变和制动载波器被禁止Pulsesremaininhibiteduntilfaulthandlingactionshavebeencarriedout脉冲被禁止直到进行故障处理PCEchecks

8、thatIGBTshaveswitchedoffPCE检查IGBTs已关闭IfnotHSCBandLCarecommandedopen如果未关闭，HSCB和LC将打