Los ntawm kev tsom xam ntawm ob lub xeev intuitive ntawm tsis muaj load thiab load, nws tuaj yeemYeej yuav suav hais tias nyob rau hauv lub xeev load ntawm lub cev muaj zog, vim lub fact tias nws drags lub load, nws yuav sib haum mus rau ib tug loj tam sim no, uas yog, lub load tam sim no ntawm lub cev muaj zog yuav ntau dua li tsis muaj load tam sim no; tab sis qhov noQhov teeb meem no tsis muaj feem xyuam rau tag nrho cov motors, uas yog, ib co motors muaj ib tug tsis muaj load tam sim no ntau tshaj lawv load tam sim no.
Muaj ob txoj haujlwm hluav taws xob ntawm lub stator ib feem ntawm lub asynchronous lub cev muaj zog: ib qho yog siv lub zog hluav taws xob, thiab lwm qhov yog tsim kom muaj qhov sib nqus sib nqus ntawm lub cev muaj zog.
Nyob rau hauv lub tsis muaj-load lub xeev ntawm lub cev muaj zog, tam sim no feem ntau yog cov excitation tam sim no, thiab lub active tam sim no coj mus rau qhov tsis muaj-load poob yog me me.Ntawd yog, lub zog hluav taws xob input yog me me ntawm tsis muaj kev thauj khoom, thiab cov stator tam sim no feem ntau yog siv los tsim ib qho chaw sib nqus.
Nyob rau hauv lub xeev load, ntau lub zog yuav tsum tau input kom tsav lub load. Feem ntau, cov khoom tam sim no feem ntau yog cov khoom thauj tam sim no, yog li cov khoom thauj tam sim no feem ntau ntau dua li qhov tsis muaj kev thauj khoom tam sim no, thiab qhov tsis muaj tam sim no tsuas yog 1/4 txog 1/2 ntawm cov khoom thauj tam sim no. nruab nrab.
Kev hloov pauv hluav taws xob hluav taws xob hauv lub cev muaj zog yog txheej txheem nyuaj heev. Lub chaw tsim khoom ntawm magnetic teb raws li qhov nruab nrab tsuas yog rau kev hloov pauv ntawm electromechanical cuam tshuam nrog ntau yam, uas ua rau lub fact tias tsis muaj-load tam sim no ntawm ib co tshwj xeeb tsim los yog hom motors yog ntau tshaj qhov load tam sim no.
Rau peb-theem asynchronous lub cev muaj zog, peb-theem windings yog symmetrically faib nyob rau hauv qhov chaw, thiab cov input peb-theem tam sim no yog symmetrical. Tshaj muaj ib tug tej yam tsis tu ncua. Txawm li cas los xij, rau qee qhov tshwj xeeb tsim motors, xws li ib leeg-winding ncej-hloov ntau-ceev lub cev muaj zog nrog qee qhov ceev lossis ntau tus ncej, cov dej xau los yog cov dej ntws tawm yog qhov loj heev, thiab cov xau reactance voltage poob los ntawm cov load. tam sim no loj, uas ua rau lub saturation theem ntawm lub magnetic circuit nyob rau hauv load. Ntau qhov qis dua qhov tsis muaj load, qhov load excitation tam sim no me dua li qhov tsis muaj load excitation tam sim no, uas ua rau tsis muaj load tam sim no ntau dua li qhov load tam sim no.
Sib nqus teb ntawm ib theem lub cev muaj zog yog ib qho elliptical magnetic teb, thiab ellipticity yog txawv ntawm tsis muaj load thiab load, thiab feem ntau muaj qhov sib txawv loj.Feem ntau, lub stator ntawm ib-theem asynchronous lub cev muaj zog muaj ob pawg ntawm lub ntsiab thiab pab windings, thiab lawv cov axes feem ntau txawv ntawm 90 ° hauv qhov chaw. Lub auxiliary winding yog txuas nrog lub hwj chim kab sib txuas nrog lub ntsiab winding tom qab ib tug haum capacitor txuas nrog series.Vim tias cov theem kev sib cais ntawm cov khoom xws li cov capacitors, tam sim no ntawm lub ntsiab winding thiab cov pab cuam winding txawv ntawm lub kaum sab xis ntawm lub sijhawm, thiab cov mem tes vibration sib nqus muaj peev xwm tsim los ntawm lub ntsiab winding thiab pab winding raws li tau muab tso rau hauv Lub rotating magnetic muaj peev xwm, thiab induced tam sim no nyob rau hauv lub rotor yog tsim. Lub magnetic teb yog induced, thiab ob lub magnetic teb sib cuam tshuam los tsim lub luag torque ntawm lub cev muaj zog.Kev soj ntsuam theoretical ua pov thawj tias elliptical hluavtaws rotating magnetic muaj peev xwm ntawm ib-theem lub cev muaj zog tuaj yeem decomposed rau hauv ob lub voj voog rotating sib nqus muaj peev xwm ntawm qhov zoo ib ntus thiab tsis zoo ib ntus. Kev nqis tes ua, kom qhov luaj li cas ntawm tus rub torque cuam tshuam zoo heev.
Thaum lub spatial faib ntawm lub ntsiab thiab auxiliary windings thiab lub sij hawm theem sib txawv ntawm lub tam sim no ntws yog ob qho tib si 90 degrees hluav taws xob lub kaum sab xis, lub ellipticity ntawm cov hluavtaws magnetic teb yog qhov tsawg tshaj plaws; Yog hais tias qhov loj ntawm lub peev xwm sib nqus ntawm lub ntsiab thiab cov koom haum windings yog tib yam, cov ntaub ntawv ntawm qhov tsawg tshaj plaws ellipticity ntawm cov khoom sib nqus sib nqus yog hloov mus rau hauv cov duab voj voog Rotating magnetic teb, uas yog, lub cev muaj zog tsuas yog muaj peev xwm sib nqus ntawm qhov zoo. kev sib hloov, qhov tsis zoo ib ntus tivthaiv yog xoom, thiab qhov Performance index kuj zoo.Vim hais tias cais-theem Cheebtsam xws li capacitors ua tiav cov theem sib txawv ntawm cov theem tam sim no offset ntawm qhov sib txawv speeds, tsis muaj qhov kev sib piv ntawm qhov tsis muaj load tam sim no thiab cov load tam sim no ntawm ib-theem lub cev muaj zog. Qee qhov kev thauj khoom tam sim no ntau dua li qhov tsis muaj kev thauj khoom tam sim no, thiab qee qhov tam sim no tsis muaj load yuav ntau dua li qhov tam sim no.
Post lub sij hawm: Apr-06-2023