电气 自动化 外文翻译 外文文献 英文文献.docx
- 文档编号:334807
- 上传时间:2022-10-09
- 格式:DOCX
- 页数:14
- 大小:248.86KB
电气 自动化 外文翻译 外文文献 英文文献.docx
《电气 自动化 外文翻译 外文文献 英文文献.docx》由会员分享,可在线阅读,更多相关《电气 自动化 外文翻译 外文文献 英文文献.docx(14页珍藏版)》请在冰豆网上搜索。
电气自动化外文翻译外文文献英文文献
外文出处:
Farhadi,A.(2008).Modeling,simulation,andreductionofconductedelectromagneticinterferenceduetoapwmbucktypeswitchingpowersupply.HarmonicsandQualityofPower,2008.ICHQP2008.13thInternationalConferenceon,1-6.
Modeling,Simulation,andReductionofConductedElectromagneticInterferenceDuetoaPWMBuckTypeSwitchingPowerSupplyI
A.Farhadi
Abstract:
UndesiredgenerationofradiatedorconductedenergyinelectricalsystemsiscalledElectromagneticInterference(EMI).HighspeedswitchingfrequencyinpowerelectronicsconvertersespeciallyinswitchingpowersuppliesimprovesefficiencybutleadstoEMI.Differentkindofconductedinterference,EMIregulationsandconductedEMImeasurementareintroducedinthispaper.CompliancywithnationalorinternationalregulationiscalledElectromagneticCompatibility(EMC).PowerelectronicsystemsproducersmustregardEMC.ModelingandsimulationisthefirststepofEMCevaluation.EMIsimulationresultsduetoaPWMBucktypeswitchingpowersupplyarepresentedinthispaper.ToimproveEMC,sometechniquesareintroducedandtheireffectivenessprovedbysimulation.
IndexTerms:
Conducted,EMC,EMI,LISN,SwitchingSupply
I.INTRODUCTION
FASTsemiconductorsmakeitpossibletohavehighspeedandhighfrequencyswitchinginpowerelectronics
.Highspeedswitchingcausesweightandvolumereductionofequipment,butsomeunwantedeffectssuchasradiofrequencyinterferenceappeared
.Compliancewithelectromagneticcompatibility(EMC)regulationsisnecessaryforproducerstopresenttheirproductstothemarkets.ItisimportanttotakeEMCaspectsalreadyindesignphase
.ModelingandsimulationisthemosteffectivetooltoanalyzeEMCconsiderationbeforedevelopingtheproducts.Alotofthepreviousstudiesconcernedthelowfrequencyanalysisofpowerelectronicscomponents
.DifferenttypesofpowerelectronicsconvertersarecapabletobeconsideredassourceofEMI.TheycouldpropagatetheEMIinbothradiatedandconductedforms.LineImpedanceStabilizationNetwork(LISN)isrequiredformeasurementandcalculationofconductedinterferencelevel
.InterferencespectrumattheoutputofLISNisintroducedastheEMCevaluationcriterion
.NationalorinternationalregulationsarethereferencesfortheevaluationofequipmentinpointofviewofEMC
.
II.SOURCE,PATHANDVICTIMOFEMI
Undesiredvoltageorcurrentiscalledinterferenceandtheircauseiscalledinterferencesource.Inthispaperahigh-speedswitchingpowersupplyisthesourceofinterference.
Interferencepropagatedbyradiationinareaaroundofaninterferencesourceorbyconductionthroughcommoncablingorwiringconnections.Inthisstudyconductedemissionisconsideredonly.Equipmentsuchascomputers,receivers,amplifiers,industrialcontrollers,etcthatareexposedtointerferencecorruptionarecalledvictims.Thecommonconnectionsofelements,sourcelinesandcablingprovidepathsforconductednoiseorinterference.Electromagneticconductedinterferencehastwocomponentsasdifferentialmodeandcommonmode
.
A.Differentialmodeconductedinterference
Thismodeisrelatedtothenoisethatisimposedbetweendifferentlinesofatestcircuitbyanoisesource.RelatedcurrentpathisshowninFig.1
.Theinterferencesource,pathimpedances,differentialmodecurrentandloadimpedancearealsoshowninFig.1.
B.Commonmodeconductedinterference
Commonmodenoiseorinterferencecouldappearandimposebetweenthelines,cablesorconnectionsandcommonground.Anyleakagecurrentbetweenloadandcommongroundcouldbemodeledbyinterferencevoltagesource.
Fig.2demonstratesthecommonmodeinterferencesource,commonmodecurrentsIcm1andIcm2andtherelatedcurrentpaths
.Thepowerelectronicsconvertersperformasnoisesourcebetweenlinesofthesupplynetwork.Inthisstudydifferentialmodeofconductedinterferenceisparticularlyimportantanddiscussionwillbecontinuedconsideringthismodeonly.
III.ELECTROMAGNETICCOMPATIBILITYREGULATIONS
Applicationofelectricalequipmentespeciallystaticpowerelectronicconvertersindifferentequipmentisincreasingmoreandmore.Asmentionedbefore,powerelectronicsconvertersareconsideredasanimportantsourceofelectromagneticinterferenceandhavecorruptingeffectsontheelectricnetworks
.Highlevelofpollutionresultingfromvariousdisturbancesreducesthequalityofpowerinelectricnetworks.Ontheothersidesomeresidential,commercialandespeciallymedicalconsumersaresosensitivetopowersystemdisturbancesincludingvoltageandfrequencyvariations.ThebestsolutiontoreducecorruptionandimprovepowerqualityiscomplyingnationalorinternationalEMCregulations.CISPR,IEC,FCCandVDEareamongthemostfamousorganizationsfromEur
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 电气 自动化 外文翻译 外文文献 英文文献 外文 翻译 文献 英文