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电力监控故障录波器设计.docx

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电力监控故障录波器设计 Title:DesignofFaultRecorderforPowerSystemMonitoring Abstract: Theimportanceofpowersystemmonitoringandfaultdetectioncannotbeoverstatedinensuringthereliabilityandstabilityofanelectricalgrid.Inthispaper,wepresentthedesignofafaultrecorderforanalyzingwaveformsandcapturingeventsinapowersystem.Thefaultrecorder,alsoknownasadisturbancerecorderoreventlogger,providesvaluableinformationaboutvariouspowersystemdisturbancessuchasfaultevents,voltagesags,swells,andinterruptions.Thispaperdiscussesthekeycomponentsandfeaturesofthefaultrecorder,includingwaveformrecording,triggering,datastorage,andanalysis.Theproposeddesignaimstoenhancethefaultdetectioncapabilitiesofpowersystemoperators,aidinginaccuratefaultdiagnosis,andpreventivemaintenance. 1.Introduction Theincreasingcomplexityandinterconnectionofpowersystemsgiverisetochallengessuchasvoltagefluctuations,shortcircuits,andtransientphenomenathatneedtobeaccuratelydetectedanddiagnosed.Faultrecordersplayavitalroleinidentifyingandrecordingabnormalelectricaleventsthatoccurinpowersystems.Theycapturedatabysamplingvoltageandcurrentwaveformsatveryhigh-speedrates,allowingforthepreciseanalysisoffaultconditionsanddisturbances.Thispaperpresentsadesignforafaultrecorderthataimstoenhancethemonitoringcapabilitiesofpowersystems. 2.FaultRecorderDesign 2.1HardwareDesign Thefaultrecordercomprisesseveralkeyhardwarecomponents,includingvoltageandcurrentsensors,analog-to-digitalconverters(ADCs),memorymodules,andamicrocontrollerunit(MCU).Thevoltageandcurrentsensorsaccuratelyconverttheanalogsignalsintodigitalsignals,whicharethenconvertedintodigitalwaveformsusingADCs.Thedigitalwaveformsarestoredinthememorymodulesforfutureanalysis.TheMCUactsasthecentralcontrolunit,managingthesamplingrates,datastorage,andcommunicationinterfacesofthefaultrecorder. 2.2TriggeringMechanism Tocaptureandrecordspecificevents,thefaultrecorderemploysatriggeringmechanism.Thismechanismcontinuouslycomparestheincomingwaveformsagainstpredeterminedthresholdlevels.Oncethewaveformexceedst