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新型中压固态切换开关的研究
Introduction
Thedevelopmentofmodernpowersystemsrequirestheuseofreliableandefficientswitchgeartechnologies.Theprimaryobjectiveofswitchgearistoensurethesafeandreliableoperationofpowersystemsbyprovidingisolationandswitchingfunctions.Switchgeartechnologieshaveevolvedsignificantlyovertheyears,fromtheearlyelectromechanicaldevicestothecurrentstate-of-the-artsolid-stateswitchgeartechnologies.Thispaperpresentsastudyonthelatestsolid-stateswitchgeartechnology,whichisthenewtypemid-voltagesolid-stateswitchingswitchgear.
Overview
Thesolid-stateswitchgeartechnologyisthelatesttechnologicaladvancementinthefieldofswitchgearsystems.Solid-stateswitchgearsystemsareknownfortheirhigherreliability,lowermaintenance,andlongerservicelifecomparedtothetraditionalelectromechanicalswitchgearsystems.Thenewtypeofmid-voltagesolid-stateswitchingswitchgearisauniquetechnologythatcombinesthebenefitsofboththetraditionalelectromechanicalsystemsandthemodernsolid-statesystems.Thisnewswitchgeartechnologyisdesignedtomeettheever-increasingdemandforreliableandefficientswitchgearsystemsinmodernpowerdistributionnetworks.
Designandoperation
Thenewtypemid-voltagesolid-stateswitchingswitchgearincorporatesadvancedpowerelectronicsandsemiconductordevicestoachieveitsswitchingandisolationfunctions.Itsdesignismodularandcompact,makingitsuitableforapplicationsinlimitedspacessuchasoffshoreplatforms,ships,andcompactsubstations.Theswitchgearoperatesbyusingpowersemiconductordevicessuchassilicon-carbideandgallium-nitridedevicesthatofferhighswitchingspeed,lowpowerlosses,andhighcurrentcapability.
Theswitchgearisdesignedtooperateunderdifferenttypesoffaultssuchasoverload,short-circuit,andearthfaults.Itincorporatesvariousprotectionandcontrolfunctionsthatensurethesafeandreliableoperationoftheswitchgearandtheconnectedpowersystem.Theswitchgearisalsoequippedwithmonitoringfunctionsthatenableremotemonitoringoftheswitchgearperformance,status,andenergyconsumption.
Benefitsofthenewswitchgeartechnology
Thenewtypemid-voltagesolid-