Synchronous thiab asynchronous lub cev muaj zog: qhov sib txawv, cov kev khiav hauj lwm hauv paus ntsiab lus, kev siv cov

Classification engine raws li nyob rau hauv ntau yam tsis. Ib tug ntawm lawv, paub qhov txawv ntawm synchronous thiab asynchronous motors. Txawv kiag li lawm, general yam ntxwv thiab hom kev lag luam yog piav nyob rau hauv tsab xov xwm.

synchronous lub cev muaj zog

Qhov no hom ntawm engine yog peev xwm ua hauj ob yam li ib tug generator thiab raws li tseeb engine. Nws ntaus ntawv yog zoo li ib tug synchronous generator. Ib tug yam ntxwv feature ntawm lub cev muaj zog yog invariable ceev ntawm kev sib hloov ntawm lub teb load.

Cov xyaw cov lug siv nyob rau hauv ntau lub teb, xws li hluav taws xob nyob ntawm tej, uas yuav tsum tau ib qhov ceev.

Lub hauv paus ntsiab lus ntawm cov lag luam ntawm lub synchronous lub cev muaj zog

Lub hauv paus ntawm nws cov lag luam yog tsim nyog sis ntawm cov rotating magnetic teb ntawm lub armature thiab magnetic teb ntawm inductor tug. Feem ntau, ib tug thauj tog rau nkoj yog nyob rau hauv lub stator, thiab ib tug inductor yog muab tso rau ib tug rotor. Rau high-power motors siv hluav taws xob hlau nplaum rau tug, thiab cov uas qaug zog - tas mus li.

Cov kev khiav hauj lwm hauv paus ntsiab lus ntawm lub synchronous lub cev muaj zog muaj xws li lub (ib ntus) thiab ib tug asynchronous hom, uas yog feem ntau siv rau disperse rau qhov yuav tsum tau (i.e. nominal) ceev. Thaum lub sij hawm no, inductor winding los yog luv luv-circuited los ntawm ib tug rheostat. Tom qab ncav qhov yuav tsum tau ceev ntawm lub inductor pib pub ib qhov tam sim no.

Zoo thiab tsis zoo

Lub ntsiab disadvantages ntawm no hom ntawm engine yog:

• qhov yuav tsum tau muab lub winding DC;
• nyuaj pib;
• zawv zawg hu.

Feem ntau cov generators, peb txog qhov twg lawv siv, yog synchronous. Qhov zoo ntawm cov xws xyaw nyob rau hauv kev yog:

• lub siab tshaj plaws kev ntseeg;
• loj tshaj efficiency ;
• tsis txij nkawm.

induction lub cev muaj zog

Qhov no hom ustroysta mechanism yog aimed ntawm transforming lub hluav taws xob lub zog ntawm alternating tam sim no mus rau hauv cov neeg kho tshuab zog. Los ntawm lub npe nws tus kheej, "asynchronous", peb yuav xaus uas peb yuav sib tham txog lub arbitrary txheej txheem. Xwb, lub stator magnetic teb kev sib hloov zaus yog yeej ib txwm saum toj no lub rotor.
Xws li ib tug ntaus ntawv muaj ib tug stator thiab ib tug rotor ntawm cylindrical puab, nyob ntawm seb lub hom uas nws asynchronous nas-tawb motors yuav qhov txhab rotor.

hauv paus ntsiab lus ntawm cov lag luam

lub cev muaj zog yog raws li nyob rau hauv tus sis ntawm cov magnetic teb ntawm lub stator thiab Muab nrog tib teb tam sim no nyob rau hauv lub rotor. Lub torque tshwm sim thaum muaj ib tug txawv nyob rau hauv ceev teb.

Tam sim no saib lub ntsab lug txawv ntawm synchronous lub cev muaj zog asynchronous. Yuav ua li cas piav txog cov thoob plaws siv rau tib yam thiab muaj qhia tsawg - lwm yam?

Synchronous thiab asynchronous motors: sib txawv

Tsis zoo li xyaw ua hauj lwm - nyob rau hauv lub rotor. Nyob rau hauv lub synchronous hom, nws yog ib qhov los yog ib tug hluav taws xob magnet. Vim lub Push-Rub opposite ncej ntawm lub stator rotating teb thiab yog tus magnetic rotor. Lawv ceev yog tau zoo sib xws. Li no lub npe - synchronous.

Nws yuav ua tau tiav, nyob rau hauv sib piv rau asynchronous, txawm advancing nyob rau hauv theem voltage. Ces tus ntaus ntawv, zoo li cov roj teeb capacitor yuav tsum muaj ntaub ntawv los ua rau kom lub hwj chim.

Induction motors, nyob rau hauv lem, yog yooj yim thiab txhim khu kev qha, tab sis lawv cov disadvantage yog cov teeb meem ntawm kev kho kom haum cov kev ceev. Rau kom rov qab-theem induction lub cev muaj zog (i.e., hloov cov kev coj ntawm kev sib hloov los ntawm nyob rau hauv kev coj rov qab) hloov qhov chaw ntawm lub ob theem los yog ob qhov linear conductors cuag lub stator winding.

Yog hais tias peb xav txog qhov muab ceev, thiab ces muaj nyob ntawm no ib synchronous thiab asynchronous lub cev muaj zog sib txawv. Nyob rau hauv lub synchronous hom, qhov no daim duab yog ib tug tsis tu ncua, nyob rau hauv sib piv rau lub induction. Yog li ntawd, cov thawj siv qhov tsim nyog qhov ceev thiab tag nrho controllability, e.g., nyob rau hauv cov twj, cov kiv cua thiab compressors.

Coj mus rhaub rau ib tug ntaus ntawv, lub xub ntiag ntawm lub xam tau tias yog hom ntawm pab kiag li lawm yog heev yooj yim. Nyob rau hauv lub induction lub cev muaj zog yuav tsis muaj ib puag ncig tooj ntawm revolutions (piv txwv li, cuaj pua peb caug ib feeb), whereas rau lub synchronous - round (e.g., ib txhiab revolutions ib feeb).

Cov thiab lwm yam lub cev muaj zog drives yog heev yooj yim. Ib tug synchronous hom muaj ib tug nruj heev yam ntxwv mechanics rau tej hloov load rau hauv lub cev muaj zog ncej ceev yog tib yam. Nyob rau hauv cov ntaub ntawv no, lub load yog, ntawm chav kawm, yuav tsum tau hloov nyob rau hauv view ntawm lub fact tias lub cav yog tau withstand nws, txwv tsis pub nws yuav ua puas lub mechanism.

Qhov ntawd yog txoj kev synchronous thiab asynchronous motors. Txawv ntawm ob hom ua lub Scope ntawm lawv cov kev siv, thaum muaj ib tug zoo ntawm tiv nrog neeg ua hauj lwm optimally, rau lwm tus neeg nws yuav problematic. Nyob rau tib lub sij hawm koj yuav tau ntsib thiab ua ke mechanisms.