Newly developed electrical steel for high-frequency use

《Newly developed electrical steel for high-frequency use》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、JournalofMagnetismandMagneticMaterials242–245(2002)212–215Newlydevelopedelectricalsteelforhigh-frequencyuseM.Komatsubara,K.Sadahiro,O.Kondo,T.Takamiya*,A.HondaElectricalSteelResearchDepartment,TechnicalResearchDivision,KawasakiSteelCorporation,Mizushima

2、,Kawasakidori1-chrome,Kurashiki712-8511,JapanAbstractForhigh-frequencyappliances,anewmagneticmaterialwasdeveloped,anditspropertieswereinvestigatedandcomparedwithconventionalelectricalsteeland6.5%Sisteel.Thenewmaterialhasextremelylowironlossathighfrequen

3、ciesover5kHzaswellas6.5%Sisteel,whichwasobtainedbyincreasingelectricresistivity,orbyreducingitseddycurrentloss.Generally,increasingresistivitymakessteelsbrittleanddeterioratestheirworkability.However,thedevelopedmaterialshowedagoodworkabilitywiththeeffe

4、ctofCraddition.Thismaterialhasagoodpropertyofpulseresponse,andalsoshowedanexcellentperformanceforpowerelectronicsdeviceusinganactivefilteroperatedat15kHz.r2002ElsevierScienceB.V.Allrightsreserved.Keywords:Siliconsteel;Device-motors;Magneticloss;Eddycurre

5、nts-loss;Electricresistivity;Transformers1.Introductionproperties,however,itshardnessistoolargetobewellworked.ProgresstowardhigherfrequenciesofelectricalRecently,anewelectricalsteelforhigh-frequencyapplianceswithmotorsisremarkable.Forexample,usehasbeend

6、evelopedintheKawasakiSteelCor-motorsinstalledincomputers,etc.,aredrivenathigherporation[2],itspropertiesaretobereportedinthisspeed,andhighprecisionandlowdissipationofpowerpaper.arerequired.Thereareanotherappliances,suchasswitchingsources,transformersand

7、reactorsinpowerelectronicsdemandinghigh-frequencymagneticmateri-als.Thus,theeffortfordevelopingnewmaterialsfor2.Experimentalmethodhigh-frequencyuseismadeinawidefieldofmaterials.Thestrongdemandexistsinelectricappliancesfor2.1.Specimensusedinthisexperiment

8、softmagneticmaterialsusedathighfrequenciesof1toseveraltensofkHz.Inthisfield,therearegoodToreducehigh-frequencyironloss,onemethodistomaterialslikesoftferriteandamorphousmetal.How-increaseelectricresistivity,byincreasingcontentssuch