Dab tsi yog qhov txawv nruab nrab ntawm ib lub tshuab luam ntawv thiab cav?
Lub tshuab hluav taws xob yog ib lub tshuab uas siv cov ntsiab lus ntawm electromagnetic induction hloov AC voltage. Lub tswv yim tseem ceeb yog cov thawj kauj, lub kauj (secondary), thiab cov tub ntxhais hlau (hlau nplaum). Lub luag haujlwm tseem ceeb yog: kev hloov ua hluav taws xob, kev hloov tshiab tam sim no, kev hloov pauv hloov, kev tswj, kev tswj qhov ntsuas hluav taws xob (qhov hluav taws xob sib nqus) thiab lwm yam. Uas yog muab cov ntaub ntawv ntawm kev siv tshuab thiab tshuab hluav taws xob. Nrog rau kev ceev nrawm thiab kev siv lub tshuab fais fab loj, kev siv technology hauv tshuab hlwb hlau tau ua tiav kev tsim kev lag luam, ua ib qho kev siv tshuab computer thiab kev siv technology, kev siv cuab yeej technology, kev paub txog kev siv hluav taws xob, kev siv technology thiab kev siv tshuab. Cov kev taw qhia ntawm txoj kev siv tshuab ua rau opto-mechatronics tab tom loj hlob tuaj, thiab cov ntawv thov yog qhov dav thiab dav dua. Yog li dab tsi yog qhov txawv ntawm ib tug transformer thiab ib tug tsav?
Ua ntej, zoo sib xws:
Qhov zoo sib xws ntawm asynchronous motors thiab transformers yog mas thas nyob rau hauv lub electromagnetic kev sib raug zoo. Cov khoom siv hluav taws xob uas yog "unilateral excitation" hluav taws xob, uas yog, ib sab (thawj qhov sib txuas ntawm lub tshuab hluav taws xob, lub stator winding ntawm lub asynchronous tsav) txuas nrog lub hwj huam mov, thiab lwm sab (qhov thib ob ntawm lub cav tsim nyog) electromotive quab yuam thiab tam sim no nyob rau hauv qhov nruab nrab winding, lub rotor winding ntawm lub asynchronous tsav yog tag nrho generated los ntawm electromagnetic induction. Thaum lub hwj huam ntawm qhov hluav taws xob tsis tu ncua, qhov nqi siab tshaj plaws ntawm lub ntsiab sib nqus ntawm lub ntsiab lus tseem ceeb tshaj plaws, thiab tsis muaj kev sib raug zoo nrog kev luaj li cas.
Nws yog vim lawv txoj haujlwm ua haujlwm zoo sib xws uas cov equivibrium sib npaug hauv lawv cov circuits thiab cov hlau nplaum sib npaug ntawm qhov sib npaug ntawm cov hlau nplaum sib luag. Los yog, lawv qhov kev sib raug zoo ntawm kev sib deev yog qhov qub. Raws li qhov nce ntxiv, tus theem nrab (lossis rotor) tam sim no nce, thiab thawj (los yog tus stator) tam sim no kuj nce.
Thib ob, qhov txawv:
Lub asynchronous engine thiab lub transformer muaj ib qho zoo sib txawv, thiab lawv lub ntsiab sib txawv yog raws li nram no.
(1) Lub tshuab hluav taws xob yog ib qho khoom siv hluav taws xob uas nws lub tshuab hluavtaws tseem ceeb tshaj plaws yog lub tshuab nqus hlau phom sij. Lub zog ntawm lub zog thiab qhov tam sim no nyob rau hauv thawj qib thiab cov kab nrib nrab muaj tib lub zaus. Lub cav asynchronous yog ib qho khoom siv hluav taws xob uas nws lub ntsiab magnetic teb yog ib qho kev sib hloov magnetic. Thaum lub rotor rotates, lub zog ntawm electromotive thiab tam sim no iV nyob rau hauv stator thiab rotor windings muaj frequencies sib txawv.
(2) Xwb qhov kev kuaj ntawd tuaj yeem kis tau rau hauv lub tshuab hluav taws xob, thiab cov hluav taws xob hluav taws xob sib kis mus rau sab nraub nrab ntawm lub ntsiab ntawm kev sib nqus magnetic. Ntxiv rau lub ntiaj teb txoj kev sib kis ntawm asynchronous motors, tseem muaj kev hloov dua siab tshiab ntawm lub zog M. Tom qab hluav taws xob nyob hauv stator windings kis tau mus rau lub rotor windings los ntawm lub ntsiab magnetic teb, ib feem ntau yog hloov dua siab tshiab rau hauv mechanical zog, uas yog tso zis los ntawm cov rotor ncej rau lub tshuab. Tsis zoo.
(3) Vim tias muaj qhov sib txawv ntawm cov pa hauv asynchronous, qhov tsis muaj thauj tam sim no loj dua cov tshuab hluav taws xob. Nyob rau hauv lub tshuab fais fab, qhov nyiaj tsis muaj nuj nqi tam sim no rau 20% ~ 30% ntawm tam sim no; nyob rau hauv qis-zog lub zog Nws muaj peev xwm ncav cuag li 35% mus rau 50%. Yog li no, tsis muaj qhov poob ntawm kev ua lub kauj ruam ntawm kev ua haujlwm yog qhov loj dua li ntawm qhov kev hloov tshuab.
(4) Asynchronous lub cev yog qhov khoom siv hluav taws xob tsawg. Los ntawm cov seem ntawm lub zog, huab cua uas tam sim no siv rau feem ntau ntawm qhov chaw magnetic feem ntau, thiab muaj cua sib txawv ntawm tus stator thiab lub rotor. Nyob rau hauv tib lub sijhawm ntawm lub ntiaj teb, cov dej ntws tawm hauv lub asynchronous lub cev muaj ntau dua qhov loj ntawm qhov kev hloov tshuab. Ntawd yog, nws cov reactance loj dua. Qhov no qhia tau hais tias kom thiaj tsim tau ib qho chaw magnetic field, cov hlua #step flute yuav tsum muaj lub zog loj loj. Thaum lub hwj huam ntawm qhov hluav taws xob tsis tu ncua, qhov nqi siab tshaj plaws ntawm qhov sib txawv ntawm qhov sib txawv ntawm lub cev muaj zog yog hloov tsis tau, qhia tias lub zog (qhov muaj zog) yuav tsum tau tsim kom muaj qhov sib txawv ntawm cov hlau nplaum. Thaum lub zog ntawm lub cav me me, lub zog ntawm lub tshuab muaj zog tsawg heev, thiab qhov sib npaug zog rov qab rau cov kev faib loj, yog li qhov hluav taws xob zoo tshaj yog qhov tsawg heev (lub zog qhov tsis muaj qhov tsis muaj ntau tshaj 0.2>. Thaum nce qhov ntsaws, qhov sib npaug ntawm qhov fais fab tuag yog qhov txo qis dua, yog li ntawd lub zog ntawm lub asynchronous lub zog qis dua li qub. Thaum twg lub nra hnyav, lub rotor reactance yuav nce vim qhov nce ntawm lub ris hauv qab.
