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1、河南理工大学万方科技学院本科毕业论文河南理工大学万方科技学院电气与自动化工程系2012届毕业生英文文献专业：电气工程及其自动化班级：08电气6班学号：姓名：叶国印时间：2012年5月31日13河南理工大学万方科技学院本科毕业论文外文资料与中文翻译外文资料：Converterreferencedesign(1)ConverterSelection:Selectiontodeterminethefrequencyconverterwhenthefollowingpoints:1)Thepurposeofavariablefrequency;constantpressuretocontro
2、lorconstantcurrentcontrol.2)theloadconvertertypessuchasleavesorpumpvolumepumps,withspecialattentiontoloadtheperformancecurve,theperformancecurveofthedecisionofthewaysandmeans.3)thefrequencyconverterandloadmatchingVoltagematch:aratedvoltageconverterwitharatedvoltagelinewiththeload.Currentmatches
3、:ordinarypump,theratedcurrentinverterandmotorratedcurrentmatch.Forspecialloadsuchasdeep-waterpumps,andsoonneedtorefertotheelectricalperformanceparameterstodeterminethemostcurrentinvertercurrentandGuozainengli.Torquematch:inthiscaseconstanttorqueloadorslowdownwhenthedevicemayhaveoccurred.4)theus
4、eofhigh-speedmotordriveinverter,becauseofthehigh-speedmotor,anti-small,highharmonicsleadtoincreasedoutputcurrentvalueincreases.Soforhigh-speedmotorinverterSelection,itscapacitytobeslightlylargerthantheordinarymotorselection.5)Ifthefrequencyconvertertoalongcablerun,thistimetotakemeasurestocurbth
5、elongcabletotheimpactofcapacitivecoupling,inadequateeffortstoavoidconverter,sointhiscase,thedrivetoenlargethecapacityofafileortheconverterOutputinstalledoutputreactor.6)Fortheapplicationofsomespecialoccasions,suchashightemperatures,highaltitude,atthistimewouldcausethedownconvertercapacity,thedr
6、ivetoenlargethecapacityofablock.13河南理工大学万方科技学院本科毕业论文(2)invertercontrolschematicdesign:1)FirstconfirmationoftheinstallationenvironmentConverterOperatingtemperature:high-powerconverteristheinternalelectroniccomponents,vulnerabletotheeffectsoftemperature,productgeneralrequirementsfor0~55℃,butinord
7、ertoensurethesafe,reliable,theuseofroomtobetakenintoaccount,thebestcontrolin40℃below.Inthecontrolbox,theconverterboxshouldgenerallybeinstalledintheupperandstrictlycomplywiththeManualofinstallationrequirements,absolutelynotbeallowe
