资源描述：
《永磁同步电动机直接转矩控制系统-外文翻译》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、Alwaysmagneticbeltsynchromotordirecttorquecontrolsystem0-prefaceSynchromotorbecauseofhavingpowerfactorhigher-,run-timeefficiencyhigher-,stabilitygood,therevolvingspeedHengsettlestowaitamerit,isextensivelybeenappliedtoindustrialproductionamid.Thestartingfaultthatacquaintswithsynchrom
2、otor,anddebuggingintime,allhaveimportantmeaningtothemotorandtheproductionsystemses.Bywayofenergyintime,accuratedebuggingandtransactionfault,havetovsthefamiliarfaultprogressofthesynchromotorindetailanalytical!1-Familiarfault1.1-Thesynchromotorafterswitchingonelectricitytheincapabilit
3、ystartsThesynchromotorafterstartingtheincapabilityrun-timegenerallyhasthereasonofseveralsasfollows:(1)Powersupplyvoltageoverlow.Becauseatthesquareofvoltage,thestartingtorquedirectproportionofsynchromotor'sthevoltageofpowersupplyovermakelowthestartingtorqueofsynchromotorsignificantly
4、thedroopislowerthanloadtroque,cannotstartthusandwanttoraisevsthispowersupplyvoltagetoenlargethestartingtorqueofdynamo.(2)Thefaultofmotor.Checkmotorsettle,therotorwindinghadnoshortcircuit,opencirctui,opensolderingandlinkbadetc.fault,thesethefaultswillmakethedynamocannotstarttocreates
5、tartingofratingofintensityofmagneticfield,makethusthedynamocannotstart;Checkingthemotorbearinghasalreadyhadnofailure,theportcaphashavenoloose,ifbearingfailureportshroudloose,resultinbearing'sdownsinking,mutuallyrubwithstatorironcore,resultinthusdynamo'scanningnotstart,vssettletherot
6、orfaultcanbeshakentablewiththelowtension,graduallyclicktochecktoseekafaultconditionandadopthomologoustreatment;Thecountersgaftacceptsandcarriestoshroudalooseconditionandallwantsapancarbeforedrivingeachtimeandseesmotorrotorwhetherslewingisvivid,ifbearingorshaftkiowattdamageandreplace
7、intime.(1)Thecontroldevicebreaksdown.Thiskindoffaultsaremostlythed.c.outputvoltageofthewindingsofLimagneticbelttoadjustnotappropriateordon'toutput,resultinthestatorcurrentofmotoroverbig,causethemotorconductelectricitytherunmakeorthelosingofdynamomagneticbeltrun-time.Shouldcheckwheth
8、eroutputvoltagecurr
