1. AC asynchronous lub cev muaj zog
AC asynchronous lub cev muaj zog yog lub tshuab hluav taws xob uas siv AC voltage los ua haujlwm. Nws yog dav siv hauv cov khoom siv hauv tsev xws li cov kiv cua hluav taws xob, tub yees, tshuab ntxhua khaub ncaws, cua txias, tshuab plaub hau, tshuab nqus tsev vacuum, ntau lub hoods, tshuab ntxhua khaub ncaws, tshuab xaws hluav taws xob, khoom noj khoom haus, thiab ntau yam khoom siv hluav taws xob thiab cov khoom siv hluav taws xob me me.
AC asynchronous motors muab faib ua induction motors thiab AC commutator motors. Induction motors tau muab faib ua ib-theem asynchronous motors, AC / DC dual-purpose motors, thiab repulsion motors.
Qhov ceev ntawm lub cev muaj zog (rotor ceev) yog tsawg dua qhov ceev ntawm lub rotating magnetic teb, yog li nws yog hu ua asynchronous motor. Nws yog qhov pib zoo ib yam li lub cev muaj zog induction. s=(ns-n)/ns. s yog tus nqi swb,
ns yog magnetic teb ceev, thiab n yog rotor ceev.
Lub hauv paus ntsiab lus:
1. Thaum peb-theem asynchronous lub cev muaj zog txuas nrog peb-theem AC fais fab mov, peb-theem stator winding ntws los ntawm peb-theem symmetrical tam sim no los ua kom muaj peb-theem magnetomotive quab yuam (stator rotating magnetomotive force) thiab tsim. rotating magnetic teb.
2. Lub rotating magnetic teb muaj ib tug txheeb ze txiav motion nrog rotor conductor. Raws li lub hauv paus ntsiab lus ntawm electromagnetic induction, rotor conductor generates ib tug induced electromotive quab yuam thiab generates ib tug induced tam sim no.
3. Raws li txoj cai ntawm electromagnetic quab yuam, tam sim no-carrying rotor conductor yog ua los ntawm electromagnetic quab yuam nyob rau hauv magnetic teb, tsim electromagnetic torque, tsav lub rotor tig. Thaum lub cev muaj zog ncej nqa cov khoom siv thauj khoom, lub zog hluav taws xob tawm mus rau sab nraud.
Lub cev muaj zog asynchronous yog AC lub cev muaj zog, thiab qhov sib piv ntawm nws qhov ceev hauv qab thauj khoom mus rau qhov zaus ntawm daim phiaj hluav taws xob txuas tsis yog kev sib raug zoo. Nws kuj hloov nrog qhov loj ntawm lub load. Qhov ntau dua qhov load torque, qhov qis rotor ceev. Asynchronous motors muaj xws li induction motors, ob-fed asynchronous motors, thiab AC commutator motors. Induction motors yog feem ntau siv, thiab induction motors feem ntau hu ua asynchronous motors tsis ua rau kev nkag siab yuam kev lossis tsis meej pem.
Lub stator winding ntawm ib qho zoo tib yam asynchronous lub cev muaj zog txuas nrog AC lub zog hluav taws xob, thiab lub rotor winding tsis tas yuav txuas nrog lwm qhov chaw siv hluav taws xob. Yog li ntawd, nws muaj qhov zoo ntawm cov qauv yooj yim, kev tsim khoom yooj yim, siv thiab tu, txhim khu kev lag luam, me me, thiab tus nqi qis. Asynchronous motors muaj kev ua haujlwm siab dua thiab ua haujlwm zoo dua qub. Lawv khiav ntawm qhov ceev tsis tu ncua los ntawm tsis muaj-load mus rau tag nrho-load, thiab tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm kev lag luam thiab kev ua liaj ua teb feem ntau. Asynchronous motors kuj yog ib qho yooj yim kom muab tau rau hauv ntau hom kev tiv thaiv kom tau raws li qhov xav tau ntawm qhov sib txawv ib puag ncig. Thaum lub asynchronous lub cev muaj zog khiav, nws yuav tsum nqus reactive excitation zog los ntawm daim phiaj fais fab, uas deteriorates lub hwj chim ntawm daim phiaj fais fab. Yog li ntawd, synchronous motors feem ntau yog siv los tsav lub zog siab, cov cuab yeej siv hluav taws xob qis xws li pob zeb thiab compressors. Txij li qhov ceev ntawm lub asynchronous lub cev muaj zog muaj qee qhov kev sib raug zoo nrog kev ceev ntawm nws qhov chaw sib nqus sib nqus, nws cov kev tswj ceev tsis zoo (tshwj tsis yog AC commutator motors). Rau kev thauj mus los machinery, dov mills, cov cuab yeej siv tshuab loj, luam ntawv thiab dyeing thiab papermaking machinery uas yuav tsum tau muaj kev tswj hwm qhov dav thiab smoother, nws yog kev lag luam thiab yooj yim siv DC motors. Txawm li cas los xij, nrog rau kev txhim kho ntawm cov khoom siv hluav taws xob siab thiab AC ceev cov kev tswj hwm, kev tswj hwm kev ua haujlwm nrawm thiab kev lag luam ntawm asynchronous motors haum rau kev tswj ceev nrawm yog piv rau cov DC motors.