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1、电力电子故障诊断PowerelectronicfaultdiagnosisPick:withthedevelopmentofTheTimes,theprogressofscienceandtechnology,people'slivingstandardsareimprovingconstantly.Today,thepowerelectronicstechnologyisaffectingPeople，sDailyworkAndlife・Therefore,itisimportanttostudythepowerelectroni
2、ccircuitfaults・Ingeneral,theelectronicpowercircuithasalowloadcapacityanddamagedspeedunderhighpressureFast,itisdifficulttopredictthedamagetimeanddiagnosethemalfunctionoftheelectroniccircuit・Theproposedparticleswarmoptimizationalgorithmnotonlyprovidesthemethodforthediagn
3、osisofcircuitfault,butalsoaccuratelydeterminesthecircuitThevelocityandspaceofeachparticle・Basedontheactualusage,thispaperdiscussesthefauItprinciple,diagnosismethod,reliabilityanalysisandapplicationofpowerelectroniccircuit・Keywords:powerelectroniccircuits;Faultdiagnosis
4、prefaceInthecontextoftherapiddevelopmentofscienceandtechnology,faultdiagnosisisgettingmoreandmorepeople，sweightDependingonthe・Inthefieldofpowerelectronics,mostofthefailuresstemfrompowerswitchingdevicesDamageiscommoninthesepowerswitchdevices・ElectronicfaultThereisabigdi
5、fferencebetweenthediagnosisandtheanalogcircuitandthedigitalcircuitThewaveformdeterminesthetypeoffailure・Duringtroubleshooting,theextractionoffailureisimportantIntheend,onlytheappropriatemodelsandalgorithmsareestablishedtodeterminethefaultofthepowerelectroniccircuitCani
6、mprovetheaccuracyoftroubleshootingandachievethedesiredeffect・PowerelectroniccircuitsystemfailureprincipleInthefaultdiagnosisofelectricpowerelectronicsystem,thesensorhastobeusedinthecircuitsystemThefaultsignalintheseriesiscollected,andatthesametime,thefrequencydiagnosis
7、algorithmisusedThecorrespondingcircuitfaultidentificationisdone,sothatthecircuitsystemcanbeaccuratelydeterminedThereisafailure・Intheprocessofcalculation,thecorrespondingcomputationalmodelissetuptodetermineEachfailuresignalinthecircuitsystemisreflectedinaset・Also,Theini
8、tialcurrentandvoltageinthecircuit,andtheoverloadcapacityparametersofeachcircuitdeviceThecorrespondingcalculationisbas
