Ib qho tshwj xeeb ntawm cov tshuab hluav taws xob synchronous yog tias cov hlau nplaum sib nqus thiab cov rotor muaj qhov sib hloov ceev. Vim li no, lub rotor ntawm lub tshuab hluav taws xob tsis hloov nws qhov ceev thaum lub load nce. Muaj ib lub winding ntawm lub rotor uas tsim ib qho chaw sib nqus.
Qee zaus siv cov hlau nplaum ruaj khov. Feem ntau hauv cov tshuab synchronous muaj ntau li windings ntawm lub rotor raws li muaj nyob rau ntawm stator. Yog li nws hloov tawm kom sib npaug ntawm qhov ceev ntawm kev sib hloov ntawm cov hlau nplaum flux thiab lub rotor. Lub load uas txuas nrog lub cev muaj zog tsis cuam tshuam qhov nrawm ntawm txhua qhov.
Electric motor design
Cov cuab yeej ntawm lub tshuab synchronous muaj cov hauv qab no:
- Txoj ntu ntu yog tus stator, uas nyob ntawm qhov windings.
- Txawb rotor, qee zaum hu ua inductor lossis armature.
- Pem hauv ntej thiab nram qab npog.
- Rotor mounted bearings.
Nws muaj qhov chaw dawb ntawm armature thiab stator. Windings yog nteg nyob rau hauv lub grooves, lawv txuas nrog nyob rau hauvhnub qub. Sai li qhov voltage yog siv rau lub cev muaj zog, tam sim no pib ntws los ntawm armature winding. Ib qho chaw sib nqus yog tsim nyob ib ncig ntawm lub inductor. Tab sis tus stator kuj tseem muaj zog. Thiab qhov no yog qhov chaw sib nqus flux tuaj. Cov teb no yog offset los ntawm ib leeg.
Yuav ua li cas lub tshuab synchronous ua haujlwm
Hauv cov tshuab synchronous, cov electromagnets ntawm lub stator yog ncej, vim lawv ua haujlwm ntawm qhov tam sim no. Nyob rau hauv tag nrho, muaj ob lub tswv yim uas cov stator windings txuas nrog:
- Salifole.
- Implicit ncej.
txhawm rau txo cov hlau nplaum tiv thaiv thiab ua kom zoo rau cov xwm txheej rau kev hla ntawm thaj teb, cores ua los ntawm ferromagnets yog siv. Lawv muaj nyob rau hauv ob qho tib si stator thiab rotor.
Lawv yog tsim los ntawm cov qib tshwj xeeb ntawm cov hlau hluav taws xob, uas muaj cov khoom loj ntawm cov khoom xws li silicon. Nrog rau qhov no, nws muaj peev xwm txo tau qhov eddy tam sim no, thiab ua kom cov hluav taws xob tsis kam ntawm cov hlau.
Kev ua haujlwm ntawm lub tshuab hluav taws xob synchronous yog raws li kev sib cuam tshuam ntawm stator thiab rotor ncej. Thaum pib, nws nrawm mus rau qhov nrawm ntawm qhov ntws. Nws yog nyob rau hauv cov xwm txheej uas lub tshuab hluav taws xob ua haujlwm hauv hom synchronous.
Pib txoj kev nrog lub tshuab hluav taws xob pabcuam
Yav dhau los, tshwj xeeb pib lub cev muaj zog tau siv, uas tau txuas nrog lub cev muaj zog siv cov cuab yeej siv tshuab (siv siv, saw, thiab lwm yam). Thaum pib, lub rotor pib tig thiab, maj mam nrawm,mus txog lub synchronous ceev. Tom qab ntawd, lub cev muaj zog nws tus kheej pib ua haujlwm. Qhov no yog raws nraim lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lub cev muaj zog synchronous, tsis hais tus tsim thiab chaw tsim khoom.
Ib yam yuav tsum tau ua ua ntej yog tias qhov pib lub cev muaj zog yuav tsum muaj lub zog ntawm li 15% ntawm lub cev muaj zog. Lub hwj chim no yog qhov txaus los pib lub cev muaj zog synchronous, txawm tias me me txuas nrog nws. Txoj kev no yog qhov nyuaj heev, thiab tus nqi ntawm tag nrho cov cuab yeej tau nce siab heev.
Ntawm tso tawm txoj kev
Niaj hnub tsim qauv ntawm synchronous motors tsis tau nruab nrog xws li overclocking circuits. Ib qho kev sib txawv ntawm qhov system yog siv. Kwv yees li ntawm txoj kev no lub tshuab synchronous tau qhib:
- Nrog kev pab los ntawm rheostat, lub rotor windings raug kaw. Yog li ntawd, lub armature ua luv luv, raws li nyob rau hauv yooj yim induction motors.
- Lub rotor kuj muaj squirrel-cage winding uas yog soothing thiab tiv thaiv lub armature ntawm viav vias thaum synchronization.
- Thaum lub armature ncav cuag nws qhov tsawg kawg nkaus kev sib hloov ceev, cov tam sim no ncaj qha txuas nrog nws cov windings.
- Yog siv cov hlau nplaum tas mus li, yuav tsum siv lub tshuab pib sab nraud.
Muaj cryogenic synchronous electric motors uas siv hom rov qab tsim. Cov excitation windings yog tsim los ntawmsuperconducting khoom.
Qhov zoo ntawm cov tshuab synchronous
Asynchronous thiab synchronous motors muaj cov qauv zoo sib xws, tab sis tseem muaj qhov sib txawv. Nyob rau hauv lub tom kawg muaj ib tug meej kom zoo dua nyob rau hauv hais tias lub excitation tshwm sim los ntawm ib tug ncaj qha qhov chaw. Hauv qhov no, lub cev muaj zog tuaj yeem ua haujlwm ntawm lub zog loj heev. Tseem muaj lwm yam txiaj ntsig ntawm synchronous motors:
- Lawv ua haujlwm ntawm tus nqi nce ntxiv. Qhov no tso cai rau koj txo qis kev siv hluav taws xob, thiab tseem txo qis kev poob tam sim no. Kev ua haujlwm ntawm lub tshuab synchronous yuav ntau dua li ntawm lub tshuab asynchronous nrog tib lub zog.
- Torque ncaj qha nyob ntawm qhov voltage hauv lub mains. Txawm hais tias qhov hluav taws xob hauv lub network txo qis, lub zog yuav nyob twj ywm.
Tab sis tseem, cov tshuab asynchronous tau siv ntau dua li synchronous. Qhov tseeb yog tias lawv muaj kev ntseeg tau zoo, tsim qauv yooj yim, tsis tas yuav muaj kev saib xyuas ntxiv.
Qhov tsis zoo ntawm synchronous motors
Nws hloov tawm tias cov tshuab synchronous muaj ntau qhov tsis zoo. Nov yog cov ntsiab lus tseem ceeb:
- Lub voj voog ntawm lub cev muaj zog synchronous yog qhov nyuaj heev, nws muaj ntau lub ntsiab lus. Nws yog vim li no uas tus nqi ntawm cov cuab yeej siab heev.
- Nco ntsoov siv qhov chaw tas mus li los txhawb lub zog inductortam sim no. Qhov no nyuaj heev rau tag nrho kev tsim kho.
- Cov txheej txheem pib lub tshuab hluav taws xob yog qhov nyuaj dua li cov tshuab asynchronous.
- Nws tuaj yeem kho lub rotor ceev tsuas yog siv cov zaus hloov pauv.
Feem ntau, qhov zoo tshaj qhov tsis zoo ntawm synchronous motors. Vim li no, lawv tau siv ntau heev nyob qhov twg nws yog ib qho tsim nyog los ua cov txheej txheem kev tsim khoom tas mus li, qhov uas nws tsis tas yuav tsum nres thiab pib cov cuab yeej nquag. Cov tshuab synchronous tuaj yeem pom nyob rau hauv mills, crushers, twj, compressors. Lawv tsis tshua tua, lawv ua haujlwm yuav luag tas li. Los ntawm kev siv cov motors no, kev txuag hluav taws xob tseem ceeb tuaj yeem ua tiav.
