单相变压器匝间短路电磁特性研究-豆柴文库

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单相变压器匝间短路电磁特性研究
Abstract
Single-phasetransformersarewidelyusedinelectricalpowertransmissionanddistributionsystems,andtheirperformanceisofgreatimportanceforensuringthereliabilityandsafetyofthepowergrid.However,short-circuitsbetweenturnsintransformerwindingscancauseseriousdamagetothetransformerandaffectthestabilityofthepowersystem.Therefore,thestudyoftheelectromagneticcharacteristicsofshort-circuitedturnsintransformersisofgreatsignificance.Thispaperpresentsacomprehensivereviewoftheresearchontheelectromagneticcharacteristicsofshort-circuitedturnsinsingle-phasetransformers,includingthetheoreticalanalysis,experimentalstudy,andnumericalsimulation.
Introduction
Single-phasetransformersareimportantcomponentsofpowertransmissionanddistributionsystems,andtheyplayavitalroleinensuringthesafeandstableoperationofthepowergrid.However,accidentssuchasshort-circuitsbetweenturnsintransformerwindingscancauseseriousdamagetothetransformerandaffectthestabilityofthepowersystem.Therefore,thestudyoftheelectromagneticcharacteristicsofshort-circuitedturnsintransformersisofgreatimportance.
Inrecentyears,therehasbeensomeresearchontheelectromagneticcharacteristicsofshort-circuitedturnsinsingle-phasetransformers,includingtheoreticalanalysis,experimentalstudy,andnumericalsimulation.Thispaperaimstoprovideacomprehensivereviewoftheseresearchefforts,withafocusonthedifferentmethodsusedtoanalyzetheelectromagneticcharacteristicsofshort-circuitedturns.
TheoreticalAnalysis
Theoreticalanalysisisanimportantmethodforstudyingtheelectromagneticcharacteristicsofshort-circuitedturnsintransformers.Byanalyzingtheelectromagneticfielddistributionandthecalculationsoftheelectromagneticforceandtheeddycurrent,researcherscanobtainimportantparameterssuchastheshort-circuitcurrent,theshort-circuittorque,andtheshort-circuittimeconstant.
ParkandMaheshKumarstudiedtheelectromagneticcharacteristicsofshort-circuitedturnsinsingle-phasetransformersbyusingthenumericalsimulationmethod,basedonthefiniteelementmethod.Theyanalyzedtheeffecto