500 kVA10 kV高温超导变压器设计及稳态特性研究-豆柴文库

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500kVA10kV高温超导变压器设计及稳态特性研究
500kVA10kVHigh-TemperatureSuperconductingTransformerDesignandSteady-StateCharacteristicsStudy
Abstract:
Inrecentyears,high-temperaturesuperconducting(HTS)technologyhasgainedsignificantattentioninthefieldofpowersystemsduetoitspotentialtoincreasetheefficiencyandcompactnessoftransformers.Thispaperfocusesonthedesignandsteady-statecharacteristicsstudyofa500kVA10kVHTStransformer.TheaimofthisresearchistoinvestigatethefeasibilityofemployingHTSmaterialsintransformersandtoanalyzetheperformanceofsuchasystemunderdifferentloadingconditions.ThestudyincludesthedesignoftheHTSwinding,thedeterminationofthecoolingsystem,andthesimulationofsteady-statecharacteristics.TheresultsdemonstratethepotentialbenefitsofusingHTStechnologyintransformerapplications.
1.Introduction:
Transformersplayacrucialroleinpowersystemsbysteppingupordownthevoltagelevelsfortransmissionanddistributionpurposes.However,conventionaltransformerssufferfromlossesandlimitationsregardingsizeandweight.High-temperaturesuperconducting(HTS)materialspresentapromisingsolutiontoovercomethesechallenges.HTSmaterials,suchasYBCO(yttrium-barium-copper-oxide),offerzeroelectricalresistanceandstrongmagneticfieldcapabilityatrelativelyhightemperatures,makingthemidealcandidatesfortransformerwindings.
2.DesignofHTSWinding:
ThedesignoftheHTSwindinginvolvesselectingtheappropriateHTSmaterial,determiningthewindingconfiguration,andoptimizingthedimensions.Inthisstudy,YBCOtapeischosenduetoitsexcellentproperties.Thewindingisdesignedinapancakeconfigurationwithmultiplelayerstomaximizethecurrent-carryingcapacity.FiniteElementMethod(FEM)analysisisemployedtooptimizethedimensionsoftheHTSwinding.
3.CoolingSystem:
TomaintaintheHTSmaterialatitssuperconductingstate,efficientcoolingiscrucial.Liquidnitrogen(LN2)iscommonlyusedasacoolantduetoitslowboilingpointandavailability.AcryostatisdesignedtohousetheHTSwindingandthecoolingsystem.ThecryostatiscarefullyengineeredtominimizetheheattransferfromthesurroundingsandtoensuresufficientLN2supp