Kev tsom xam ntawm kev ua haujlwm ntawm kev ua txij nkawm asynchronous
Vim li cas nws hu ua asynous motor?
Ib qho peb-theem asynchronous lub cev uas ua haujlwm li lub tshuab. Cov kev sib hloov ntawm lub rotor ntawm peb theem ntawm asynchronous lub cev muaj zog dua qhov kev sib hloov ceev ntawm cov qhov sib hloov magnetic, thiab rotor winding induces electromotive quab yuam thiab tam sim no vim muaj kev sib nrig sib nrug ntawm rotor thiab magnetic teb, thiab sib cuam tshuam nrog qhov sib nqus field los ua kom muaj zog ntawm lub tshuab hluav taws xob kom pom kev hloov siab.
Lub ntsiab lus ntawm "asynchronous" ntawm peb theem phase asynchronous yog tias qhov rotor ceev qee zaus qis dua qhov kev sib tshuam ua haujlwm thaum lub sijhawm qhib fais fab. Lub stator winding txuas nrog rau peb theem tam sim no los ua kom muaj peb lub teb chaw magnetic, thiab ib thaj chaw tig magnetic yog ua ke hauv cov cua sib txawv. Cov kev sib hloov ntawm kev sib hloov ntawm qhov chaw magnetic hu ua synchronous rotational speed. Cov rotor windings ruaj khov yog magnetically tsiv ib ntus rau lub nras chaw mus rau ntxias ib qho kev tawm dag zog ntawm electromotive.
Cov rotor winding yog kaw thiab lub rotor tam sim no yog generated. Lub sijhawm tamsim no nrog lub nrig ua haujlwm magnetic los ua kom muaj lub tshuab hluav taws xob nyob hauv rotor winding uas qhib lub rotor los tig rau hauv cov kev coj ua ntawm kev sib hloov magnetic field. Txawm li cas los xij, txoj kev ceev ntawm lub rotor yeej tsis tuaj yeem ua tib zoo nrog cov kev sib hloov ntawm kev sib hloov magnetic. Tshwj xeeb yog hais tias nws yog synchronized, rotor winding thiab magnetic teb tsis muaj tus txheeb ze cov suab thiab txiav cov hlau nplaum ntawm quab yuam, thiab tsis muaj ntxias electromotive quab yuam thiab induced tam sim no yog generated. Lub rotor tsis tuaj yeem tig tig. Yog li, qhov rotor ceev no yeej ib txwm qis me tshaj li qhov sib npaug ntawm qhov sib npaug.
Ib qho asynchronous lub cev yog ib qho AC tsav los ntawm huab cua nti tig magnetic teb uas sib cuam tshuam nrog ib qho kev sib raug zoo tam sim no hauv rotor winding los ua cov electromagnetic torque rau kev hloov ua lub zog. Txij thaum lub rotor winding tam sim no yog induced, muaj qhov sib txawv ntawm nws ceev thiab cov synchronous ceev.
Qhov txawv ntawm asynchronous motors thiab lwm cov motors muaj cov nram qab no cov yam ntxwv:
1, yooj yim qauv, yooj yim los tuav
2, lub hwj huam raug muab tshem tawm hauv hwj chim kab, kev siv yooj yim
1, tsis ua haujlwm ceev
2, qhov ua tau zoo dua qis dua DC lub cev
