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1、永磁同步电机在电梯开发应用的安全性和可靠性WTD/YBT/YTDserieselevatorspecialmotorsAnelevatortractionsystemusingapermanentmagnetsynchronousmotorisusuallyagearlesstractionsystem・Theadvantagesofpermanentmagnetsynchronousmotorareeasytobemadeatlowspeedandhighpower・Theutilitymodelhastheadvantagesofcompactstruc
2、tureandcompletefunctions,andiscomposedofatractionmotor,atractionwheel,anelectromagneticbrakeandaphotoelectriccoder,andiseasytoinstallandeasytouse・Especiallyinthedevelopmentandapplicationoftheinorganicelevator,thepermanentmagnetsynchronoustractionmotorisinstalledinthehoistwayoftheel
3、evator,whichsavestheconstructioncostofthecomputerroomandbeautifiestheappearsneeofthebuilding・Thecontrolchartisshowninfigure4.Whentheelevatorloadchanges,thepermanentmagnetsynchronousmotorisadjustedbytheangleof8toadapt,anditsresponsespeedisveryfast・Inordertoimprovethecomfortandaccura
4、cyoftheelevator,theaccuraterotorpositiondeviceandvoltageandcurrentdetectingdeviceareaddedtothesystemtodeterminethesizeanddirectionofthemotormagneticfieldatanytime・Thepositiondetectingdeviceadoptsarotorpositionsensor(photoelectricencoderorrotarytransformer,etc・)・Thecarloaddetectiond
5、evicecanadoptthepositiontype,pressuretypeandotherforms,toadvaneethemeasurementandcalculationofliftload,giventheproperdirectionandmagnitudeofthetorqueoutputswitchanalog(voltage)andfrequency(highfrequencyandstronganti-interference,canteleport)etc・・Theperformaneeofthefeedbacksignalcan
6、bebetterthanthatofotherdrivesystemsbycomparingthefeedbacksignalwiththegivensignalandoperatingitaccordingtothepredeterminedcontrolmode.Thesafetyandreliabilityof5permanentmagnetsynchronousmotorusedinelevatordevelopmentThepermanentmagnetsynchronousmotorcanbedevelopedandutilizedinthede
7、signandproductionofelevator,whichimprovesthesafetyandreliabilityoftheelevatortractionsystem・Whenthetractorbrakefailureorotherfaultcausedbyelevatortotheupstreamvehicle,andspeed,ithassafetyprotectionfunction,meetthetechnicalstandardsofChinaGB7588-2003(safetyrequirementsspecification"
8、andinstallationofelevatorm
