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1、變頻器應(yīng)用中存在的問題及處理對策（ProblemsexistinginapplicationoffrequencyconverterandCountermeasures）FrequencyconverterinACdrivesystemapplicationshowsgoodcontrol,canrealizesoftstartandsteplessspeedregulation,accelerationanddecelerationcontrol,makemotorgethighperformance,andhassignificantenergysav
2、ingeffect.Therefore,theapplicationofvariablefrequencyspeedregulationcanimprovethecontrolaccuracy,productionefficiencyandproductqualityoftheproductionmachinery,thushelpingtorealizetheautomationoftheproductionprocess.Therefore,inverterhasbeenwidelyusedinallaspectsofindustrialproduct
3、ioninrecentyears.Butintheactualapplicationandmaintenanceofinverter,someproblemshavealsobeenexposed,whichneedtobepaidattentionto.I.mistakesintheapplicationoffrequencyconverterFrequencyconverterinACmotortractionapplications,itsadvantagesareobvioustoall.Butsomeenterprisesinthenewandr
4、enovationprojectapplicationofconverterprocessisoftennottakenintoaccountthehighequipmentinvestmentisthemainreason,subjectiveviewofmotorcontrolusingthetraditionalcontrolmethodcansavenotasmallinvestment,thisconceptisactuallyenteredamisunderstanding.Thetraditionalcontrolmethodusingsta
5、rangleconversionandautotransformerstartingfromtheendoftwo,needtocontrolcabletothemotor,intheabovemediumsizeenterprisesduetothecontrolofthemotorarecentralizedcontrol,soarethelengthofcable.Socomparedwiththetraditionalcontrolmodeoffrequencyconverter,althoughhighequipmentinvestment,bu
6、tsavesacable,andinrecentyearsthepriceofcablehasbeenhigh,sotheabove55KWmotorwithinvertercontroloftheinvestmentandthetraditionalcontrolmethodissimilartothatoftechnologyandproductqualityhavebeenmature.Inaddition,itsgoodenergy-savingperformance,thereisahighrateofreturnoninvestment.Int
7、hefan,pumpandotherloadsontheuseoftwoyears,youcanrecovertheinvestment,directeconomicbenefitsareobvious.Also,thesoftstartingperformanceofthefrequencyconverterhaslittleimpactonthepumpmachineryandequipment.Itcanprolongtherepaircycleandservicelifeoftheequipment,andtheindirecteconomicbe
8、nefitsarealsoveryprominent.Theinv
