Lub cev muaj zog hluav taws xob ncaj qha (DC) thiab lub cev muaj zog hluav taws xob hloov pauv (AC) yog ob hom lub cev muaj zog hluav taws xob uas siv ntau. Ua ntej tham txog qhov sib txawv ntawm ob hom no, cia peb xub nkag siab txog lawv yog dab tsi.
Lub cev muaj zog DC yog lub tshuab hluav taws xob uas tig tau uas tuaj yeem hloov lub zog hluav taws xob mus ua lub zog tshuab (kev tig). Nws kuj tseem siv tau ua lub tshuab hluav taws xob uas hloov lub zog tshuab (kev tig) mus ua lub zog hluav taws xob (DC). Thaum lub cev muaj zog DC siv hluav taws xob ncaj qha, nws tsim lub zog sib nqus hauv nws lub stator (ib feem ntawm lub cev muaj zog). Lub zog no nyiam thiab thawb cov hlau nplaum ntawm lub rotor (ib feem ntawm lub cev muaj zog tig). Qhov no ua rau lub rotor tig. Yuav kom lub rotor tig tas li, lub commutator, uas yog lub qhov hloov hluav taws xob tig, siv hluav taws xob rau cov windings. Lub zog tig tas li yog tsim los ntawm kev tig rov qab cov hluav taws xob hauv cov winding tig txhua ib nrab tig.
Cov DC motors muaj peev xwm tswj tau lawv qhov ceev, uas yog qhov tsim nyog rau cov tshuab kev lag luam. DC motors muaj peev xwm pib, nres thiab thim rov qab tam sim ntawd. Qhov no yog qhov tseem ceeb rau kev tswj hwm kev ua haujlwm ntawm cov khoom siv tsim khoom. Raws li hauv qab no,lub XBD-4070yog ib qho ntawm peb cov DC motors nrov tshaj plaws.
Ib yam li lub cev muaj zog DC, lub rotor hloov hluav taws xob (AC) hloov lub zog hluav taws xob mus rau hauv lub zog tshuab (kev tig). Nws kuj tseem siv tau ua lub tshuab hluav taws xob uas hloov lub zog tshuab (kev sib hloov) mus rau hauv lub zog hluav taws xob (AC).
Feem ntau cov cav AC muaj ob hom. Lub cav synchronous thiab lub cav asynchronous. Lub cav tom kawg yuav yog ib theem lossis peb theem. Hauv lub cav AC, muaj ib lub nplhaib ntawm cov xov tooj liab (ua lub stator), uas tau tsim los tsim lub zog sib nqus tig. Vim tias cov xov hlau siv hluav taws xob AC, lub zog sib nqus, lawv tsim tawm ntawm lawv tus kheej ua rau muaj hluav taws xob hauv lub rotor (qhov tig). Qhov hluav taws xob no tsim nws lub zog sib nqus, uas tawm tsam lub zog sib nqus los ntawm stator. Kev sib cuam tshuam ntawm ob lub zog ua rau lub rotor tig. Hauv lub cav asynchronous muaj qhov sib txawv ntawm ob qhov ceev ntawd. Feem ntau cov khoom siv hluav taws xob hauv tsev siv cov cav AC vim tias lub zog los ntawm tsev yog alternating current (AC).
Qhov sib txawv ntawm DC thiab AC lub cev muaj zog:
● Cov khoom siv fais fab sib txawv. Thaum cov DC motors raug tsav los ntawm hluav taws xob ncaj qha, cov AC motors raug tsav los ntawm hluav taws xob hloov pauv.
● Hauv cov cav AC, lub armature tsis txav thaum lub zog sib nqus tig. Hauv cov cav DC, lub armature tig tab sis lub zog sib nqus tseem txav.
● Cov DC motors tuaj yeem ua tiav kev tswj hwm du thiab pheej yig yam tsis tas siv cov khoom siv ntxiv. Kev tswj qhov ceev yog ua tiav los ntawm kev nce lossis txo qhov hluav taws xob nkag. Cov AC motors rov siv cov khoom siv hloov pauv zaus los hloov qhov ceev.
Cov txiaj ntsig ntawm AC motors muaj xws li:
● Kev xav tau hluav taws xob tsawg dua thaum pib
● Kev tswj hwm zoo dua ntawm cov theem tam sim no pib thiab kev nrawm
● Kev hloov kho tau ntau yam rau ntau yam kev teeb tsa thiab kev hloov pauv ceev thiab torque
● Kev ruaj khov thiab lub neej ntev dua
Cov txiaj ntsig ntawm DC motors muaj xws li:
● Cov kev cai yooj yim rau kev teeb tsa thiab kev saib xyuas
● Lub zog pib dua thiab lub zog torque
● Lub sijhawm teb sai dua rau kev pib/nres thiab kev ua kom nrawm dua
● Ntau yam sib txawv rau cov kev xav tau hluav taws xob sib txawv
Piv txwv li, yog tias koj muaj lub kiv cua hluav taws xob hauv tsev, nws yuav siv lub tshuab AC vim nws txuas ncaj qha rau koj lub tsev lub zog AC, ua rau nws yooj yim siv thiab tsis tas yuav kho. Cov tsheb fais fab, ntawm qhov tod tes, tej zaum yuav siv cov tshuab DC vim nws xav tau kev tswj hwm qhov ceev thiab lub zog kom meej kom muab kev tsav tsheb zoo thiab kev nrawm zoo.
Lub sijhawm tshaj tawm: Plaub Hlis-01-2024