Synchronous vs Asynchronous Tsav
Lub synchronous ceev ntawm AC lub cev muaj zog yog qhov kev sib hloov ntawm cov rotating magnetic teb tsim los ntawm stator. Lub synchronous ceev yog ib txwm ib feem ntawm lub hwj chim qhov zaus. Lub synchronous ceev (ns) ntawm asynchronous lub cev muaj zog nyob rau hauv revolutions ib feeb (RPM) yog muab los ntawm, qhov twg f yog qhov zaus ntawm AC qhov chaw, thiab p yog tus naj npawb ntawm cov hlau nplaum. nyob rau theem.
Piv txwv li, ib lub tshuab 3-theem dav dav muaj 6 tus ncej sib nqus tau tsim los ua peb pawg tawm tsam, khaws cia 120 ° sib nrug ntawm ib puag ncig ntawm stator, txhua lub zog los ntawm ib theem ntawm qhov chaw. Nyob rau hauv cov ntaub ntawv no p=2, thiab rau ib kab zaus ntawm 50 Hz (frequency ntawm lub hwj chim loj), lub synchronous ceev yog 3000 RPM.
Slip (s) yog qhov kev hloov pauv ntawm qhov sib nqus ntawm qhov sib nqus, nrog rau lub rotor, muab faib los ntawm qhov tseeb kev sib hloov ntawm stator magnetic teb, thiab nws muab los ntawm, qhov twg n r yog rotor kev sib hloov ceev hauv RPM.
Ntau txog Synchronous Motors
A synchronous lub cev muaj zog yog AC lub cev muaj zog nyob rau hauv uas lub rotor nquag tig ntawm tib RPM raws li lub kiv puag ncig (stator teb) hauv lub tshuab. Lwm txoj kev hais tias qhov no yog tias lub cev muaj zog tsis muaj "slip" raws li kev ua haujlwm ib txwm muaj, uas yog s=0, thiab yog li ntawd, ua rau lub zog ntawm synchronous ceev. Qhov ceev ntawm lub tshuab synchronous yog ncaj qha nyob ntawm seb muaj pes tsawg tus ncej sib nqus thiab qhov chaw zaus.
Cov yam ntxwv ntawm lub tshuab synchronous yog cov stator winding txuas nrog AC cov khoom siv uas tsim kom muaj qhov sib nqus sib nqus thiab cov rotor tso rau hauv stator teb muab los ntawm DC tam sim no los ntawm cov hlua khi, los ua ib qho electromagnet.
Lub rotor yog cov khoom cylindrical steel casting, nyob rau hauv rooj plaub ntawm lub tshuab tsis zoo siab. Hauv cov hlau nplaum ruaj khov, cov hlau nplaum ruaj khov nyob hauv lub rotor. Lub synchronous motors yuav tsum tau ceev nrog ib tug pib mechanism, kom tau lub sync ceev. Ib zaug ntawm synchronous ceev, lub cev muaj zog khiav tsis muaj qhov hloov pauv hauv RPM.
Muaj peb hom synchronous motors; lawv yog, Reluctance Motors, Hysteresis motors, thiab Permanent Magnet motors.
Qhov kev sib hloov ceev ntawm lub tshuab synchronization yog ywj pheej ntawm kev thauj khoom, yog tias siv tam sim no txaus. Qhov no tso cai rau kev tswj kom raug nyob rau hauv kev ceev thiab txoj hauj lwm siv qhib voj tswj; Lawv tsis hloov txoj haujlwm thaum DC tam sim no siv rau ob qho tib si stator thiab rotor windings. Kev tsim kho lub cev muaj zog tso cai rau kev siv hluav taws xob ntau ntxiv ntawm qhov nrawm, thiab xav tau ntau lub zog.
Ntau txog Asynchronous Tsav
Yog tias lub plam ntawm lub cev tsis yog xoom (), ces lub cev muaj zog hu ua asynchronous motor. Tus nqi ntawm kev sib hloov ntawm lub rotor yog txawv ntawm qhov chaw ntawm stator. Hauv asynchronous motors, plam txiav txim siab lub zog tsim. Lub cev muaj zog induction yog ib qho piv txwv zoo ntawm lub tshuab asynchronous, nyob rau hauv uas cov khoom tseem ceeb yog squirrel tawb rotor thiab stator. Nyob rau hauv sib piv rau lub synchronous motors, lub rotor tsis pub nrog ib qho khoom siv hluav taws xob.
Synchronous Tsav vs Asynchronous Tsav
- Lub rotor ntawm asynchronous thiab lub synchronous linear motors txawv, qhov twg tam sim no tau muab rau lub rotor hauv sync motors, tab sis asynchronous lub cev muaj zog rotor tsis tau muab nrog tam sim no.
- Lub plam ntawm lub asynchronous lub cev muaj zog tsis yog xoom, ntsaum lub torque yog nyob ntawm daim tiab, whereas synchronous motors tsis muaj, piv txwv li swb (s)=0
- Sync motors muaj qhov RPM tas li ntawm qhov sib txawv, tab sis asynchronous motor RPM hloov nrog lub load.
