Txhua lub tsheb niaj hnub no tau nruab nrog lub tshuab hluav taws xob uas tsim cov khoom siv tam sim no rau kev ua haujlwm ntawm lub tshuab hluav taws xob on-board thiab tag nrho nws cov khoom siv.Ib qho ntawm feem tseem ceeb ntawm lub tshuab hluav taws xob yog qhov ruaj khov stator.Nyeem txog dab tsi lub tshuab hluav taws xob stator yog, nws ua haujlwm li cas thiab ua haujlwm hauv kab lus no.
Lub hom phiaj ntawm lub tshuab hluav taws xob stator
Nyob rau hauv cov tsheb niaj hnub thiab lwm lub tsheb, synchronous peb-theem alternators nrog rau tus kheej excitation yog siv.Lub tshuab hluav taws xob raug suav nrog lub stator ruaj ruaj nyob rau hauv lub tsev, lub rotor nrog kev ua kom muaj zog, ib qho txhuam txhuam (siv tam sim no mus rau qhov chaw winding), thiab chav rectifier.Tag nrho cov khoom yog sib sau ua ke rau hauv ib tug kuj compact tsim, uas yog mounted rau lub cav thiab muaj ib tug siv tsav los ntawm lub crankshaft.
Lub stator yog ib feem ntawm lub tsheb alternator uas ua haujlwm winding.Thaum lub sijhawm ua haujlwm ntawm lub tshuab hluav taws xob, nws yog nyob rau hauv stator windings uas muaj hluav taws xob tam sim no tshwm sim, uas yog hloov dua siab tshiab (rectified) thiab pub rau hauv on-board network.
Lub tshuab hluav taws xob stator muaj ntau txoj haujlwm:
• Nqa ib qho kev ua haujlwm winding uas tsim hluav taws xob tam sim no;
• Ua haujlwm ntawm lub cev kom haum rau kev ua haujlwm winding;
• Ua lub luag haujlwm ntawm lub tshuab hluav taws xob sib nqus kom nce qhov inductance ntawm kev ua haujlwm winding thiab kev faib tawm ntawm cov kab hlau nplaum raug raug;
• Ua raws li lub dab dej kub - tshem tawm cov cua kub ntau dhau ntawm cov cua kub cua.
Txhua tus stators muaj qhov tseem ceeb tib yam tsim thiab tsis txawv ntawm ntau hom.
Generator stator tsim
Structurally, lub stator muaj peb lub ntsiab:
• Lub nplhaib tseem ceeb;
• Ua haujlwm winding (windings);
• Rwb thaiv tsev ntawm windings.
Cov tub ntxhais yog sib sau ua ke los ntawm hlau nplhaib daim hlau nrog grooves nyob rau hauv.Ib pob yog tsim los ntawm daim hlau, rigidity thiab solidity ntawm cov qauv yog muab los ntawm vuam los yog riveting.Nyob rau hauv cov tub ntxhais, grooves yog tsim rau nteg lub windings, thiab txhua protrusion yog ib tug quab (core) rau lub winding lem.Cov tub ntxhais yog sib sau ua ke los ntawm daim hlau nrog lub thickness ntawm 0.8-1 hli, ua los ntawm cov qib tshwj xeeb ntawm hlau los yog ferroalloys nrog ib qho kev sib nqus permeability.Tej zaum yuav muaj cov fins nyob sab nraud ntawm lub stator los txhim kho cov cua sov, nrog rau ntau yam grooves lossis recesses rau dock nrog lub tshuab hluav taws xob vaj tsev.
Peb-theem generators siv peb windings, ib theem.Txhua qhov winding yog ua los ntawm tooj liab insulated hlau ntawm loj hla ntu (nrog ib txoj kab uas hla ntawm 0.9 mus rau 2 hli los yog ntau tshaj), uas yog muab tso rau hauv ib qho kev txiav txim nyob rau hauv lub grooves ntawm cov tub ntxhais.Cov windings muaj terminals los ntawm qhov hloov tam sim no raug tshem tawm, feem ntau cov pins yog peb lossis plaub, tab sis muaj cov stators nrog rau terminals (txhua qhov peb windings muaj nws tus kheej terminals rau kev sib txuas ntawm ib hom lossis lwm qhov).
Nyob rau hauv lub grooves ntawm cov tub ntxhais muaj ib tug insulating khoom uas tiv thaiv lub rwb thaiv tsev ntawm cov hlau los ntawm kev puas tsuaj.Tsis tas li ntawd, nyob rau hauv qee hom stators, insulating wedges tuaj yeem muab tso rau hauv cov grooves, uas ntxiv rau ua ib qho fixator rau winding lem.Lub stator sib dhos tuaj yeem ntxiv rau impregnated nrog epoxy resins lossis cov kua roj vanish, uas ua kom muaj kev ncaj ncees ntawm cov qauv (tiv thaiv kev hloov pauv) thiab txhim kho nws cov khoom siv hluav taws xob.
Lub stator yog nruj nreem mounted nyob rau hauv lub generator vaj tse, thiab niaj hnub no feem ntau siv tsim yog nyob rau hauv uas lub stator core ua raws li ib feem ntawm lub cev.Qhov no tsuas yog siv tau yooj yim: lub stator yog clamped ntawm ob lub hau ntawm lub tshuab hluav taws xob vaj tsev, uas tau nruj nrog cov studs - xws li "sandwich" tso cai rau koj los tsim cov qauv tsim nrog cua txias thiab yooj yim ntawm kev saib xyuas.Cov qauv tsim kuj nrov, nyob rau hauv uas lub stator yog ua ke nrog rau pem hauv ntej cover ntawm lub tshuab hluav taws xob, thiab lub nraub qaum yog tshem tau thiab muab kev nkag mus rau lub rotor, stator thiab lwm yam.
Hom thiab yam ntxwv ntawm stators
Cov stators ntawm lub tshuab hluav taws xob sib txawv ntawm tus lej thiab cov duab ntawm cov grooves, lub tswv yim ntawm kev tso cov windings hauv cov grooves, daim duab kab hluav taws xob ntawm cov windings thiab cov yam ntxwv hluav taws xob.
Raws li tus naj npawb ntawm grooves rau lem ntawm windings, stators yog ob hom:
• Nrog 18 qhov;
• Nrog 36 qhov.
Niaj hnub no, 36-slot tsim yog feem ntau siv, vim nws muab hluav taws xob zoo dua.Generators nrog stators nrog 18 grooves hnub no tuaj yeem pom ntawm qee lub tsheb hauv tsev ntawm kev tshaj tawm ntxov.
Raws li cov duab ntawm cov grooves, stators muaj peb hom:
• Nrog qhib grooves - grooves ntawm cov duab plaub hla ntu, lawv yuav tsum tau kho ntxiv ntawm cov winding lem;
• Nrog ib nrab kaw (nplaum-puab) grooves - cov grooves yog tapered upwards, yog li cov winding coils yog tsau los ntawm inserting insulating wedges los yog cambrics (PVC raj);
• Nrog ib nrab kaw grooves rau windings nrog ib zaug-tig coils - cov grooves muaj ib tug complex cross-section rau nteg ib los yog ob lem ntawm loj-inch hlau los yog hlau nyob rau hauv daim ntawv ntawm ib tug dav daim kab xev.
Raws li cov txheej txheem winding, stators yog peb hom:
• Nrog ib lub voj (loop faib) Circuit Court - cov hlau ntawm txhua qhov winding yog muab tso rau hauv cov grooves ntawm cov tub ntxhais nrog loops (feem ntau ib tig yog nteg nyob rau hauv increments ntawm ob grooves, lub lem ntawm lub thib ob thiab peb windings yog muab tso rau hauv cov grooves. - yog li cov windings tau txais kev hloov pauv tsim nyog los tsim kom muaj peb theem hloov tam sim no);
• Nrog ib tug nthwv dej concentrated Circuit Court - cov hlau ntawm txhua winding yog muab tso rau hauv lub grooves nyob rau hauv nthwv dej, bypassing lawv los ntawm ib sab mus rau lwm yam, thiab nyob rau hauv txhua groove muaj ob lem ntawm ib winding qhia nyob rau hauv ib txoj kev;
• Nrog ib tug nthwv dej faib hluav taws xob - cov hlau kuj tau nteg nyob rau hauv nthwv dej, tab sis lub lem ntawm ib tug winding nyob rau hauv lub grooves yog qhia nyob rau hauv txawv kev qhia.
Rau txhua hom stacking, txhua qhov winding muaj rau lem faib rau cov tub ntxhais.
Tsis hais txog ntawm txoj kev tso cov hlau, muaj ob lub tswv yim rau kev sib txuas cov windings:
• "Lub hnub qub" - nyob rau hauv cov ntaub ntawv no, lub windings yog txuas nrog nyob rau hauv parallel (qhov kawg ntawm tag nrho peb windings yog kev cob cog rua ntawm ib tug (zero) taw tes, thiab lawv thawj terminals yog dawb);
• "Daim duab peb sab" - nyob rau hauv cov ntaub ntawv no, lub windings yog txuas nrog nyob rau hauv series (thaum pib ntawm ib tug winding nrog rau qhov kawg ntawm lwm yam).
Thaum txuas cov windings nrog "hnub qub", pom qhov tam sim no siab dua, qhov Circuit Court no yog siv rau ntawm cov tshuab hluav taws xob uas muaj lub zog tsis tshaj 1000 watts, uas ua haujlwm tau zoo ntawm qhov qis qis.Thaum txuas cov windings nrog "daim duab peb sab", qhov tam sim no raug txo qis (1.7 npaug piv rau "lub hnub qub"), txawm li cas los xij, cov tshuab hluav taws xob nrog cov phiaj xwm kev sib txuas ua haujlwm zoo dua ntawm lub zog siab, thiab tus neeg xyuas pib ntawm qhov chaw me me tuaj yeem ua tau. siv rau lawv cov windings.
Feem ntau, es tsis txhob "daim duab peb sab", "ob lub hnub qub" Circuit Court yog siv, nyob rau hauv cov ntaub ntawv no lub stator yuav tsum tsis muaj peb, tab sis rau windings - peb windings yog txuas nrog ib tug "hnub qub", thiab ob "hnub qub" txuas nrog. lub load nyob rau hauv parallel.
Hais txog kev ua tau zoo, rau stators, qhov tseem ceeb tshaj plaws yog qhov ntsuas hluav taws xob, lub zog thiab ntsuas tam sim no hauv cov windings.Raws li qhov nominal voltage, stators (thiab generators) muab faib ua ob pawg:
• Nrog rau qhov hluav taws xob winding ntawm 14 V - rau cov tsheb uas muaj qhov hluav taws xob on-board network voltage ntawm 12 V;
• Nrog ib tug voltage nyob rau hauv lub windings ntawm 28 V - rau cov khoom siv nrog ib tug on-board network voltage ntawm 24 V.
Lub tshuab hluav taws xob tsim hluav taws xob ntau dua, vim tias qhov hluav taws xob poob qis yuav tshwm sim nyob rau hauv lub rectifier thiab stabilizer, thiab ntawm qhov nkag mus rau hauv daim phiaj hluav taws xob, ib txwm muaj qhov hluav taws xob ntawm 12 lossis 24 V tau pom.
Feem ntau lub tshuab hluav taws xob rau tsheb, tsheb laij teb, tsheb npav thiab lwm yam khoom siv muaj qhov ntsuas tam sim no ntawm 20 txog 60 A, 30-35 A yog txaus rau cov tsheb, 50-60 A rau cov tsheb thauj khoom, cov tshuab hluav taws xob uas muaj tam sim no txog li 150 lossis ntau dua A yog tsim. rau cov cuab yeej hnyav.
Txoj Cai Ua Haujlwm ntawm Generator Stator
Kev ua haujlwm ntawm stator thiab tag nrho lub tshuab hluav taws xob yog ua raws li qhov tshwm sim ntawm electromagnetic induction - qhov tshwm sim ntawm tam sim no nyob rau hauv ib tug neeg xyuas pib uas txav nyob rau hauv ib tug magnetic teb los yog nyob rau hauv ib tug alternating magnetic teb.Nyob rau hauv lub tsheb generators, lub thib ob txoj cai yog siv - tus neeg xyuas pib nyob rau hauv uas tam sim no tshwm sim nyob rau hauv so, thiab lub magnetic teb yog tas li hloov (rotating).
Thaum lub cav pib, lub tshuab hluav taws xob rotor pib tig, tib lub sijhawm hluav taws xob los ntawm lub roj teeb tau muab rau nws qhov zoo siab winding.Lub rotor muaj ntau tus ncej steel tub ntxhais, uas, thaum tam sim no siv rau lub winding, dhau los ua electromagnet, feem, lub rotor rotor tsim ib qho chaw sib nqus sib nqus.Cov kab ntawm daim teb no cuam tshuam cov stator nyob ib ncig ntawm lub rotor.Lub stator core faib cov magnetic teb nyob rau hauv ib txoj kev, nws cov kab ntawm quab yuam hla lub lem ntawm lub ua hauj lwm windings - vim electromagnetic induction, ib tug tam sim no generated nyob rau hauv lawv, uas yog tshem tawm los ntawm lub terminals ntawm winding, nkag mus rau hauv lub rectifier, stabilizer thiab on-board network.
Nrog rau kev nce hauv lub cav ceev, ib feem ntawm qhov tam sim no los ntawm stator ua haujlwm winding yog pub rau lub rotor teb winding - yog li lub tshuab hluav taws xob nkag mus rau hauv tus kheej-excitation hom thiab tsis xav tau qhov chaw thib peb tam sim no.
Thaum lub sijhawm ua haujlwm, tus stator ntawm lub tshuab hluav taws xob tau ntsib cov cua sov thiab hluav taws xob, thiab nws kuj raug cuam tshuam rau qhov tsis zoo ntawm ib puag ncig.Nyob rau tib lub sijhawm, qhov no tuaj yeem ua rau tsis zoo ntawm cov rwb thaiv tsev ntawm cov windings thiab hluav taws xob tawg.Hauv qhov no, stator yuav tsum tau kho lossis hloov tag nrho.Nrog kev tu thiab hloov raws sij hawm ntawm stator, lub tshuab hluav taws xob yuav ua haujlwm tau zoo, ruaj khov muab lub tsheb nrog hluav taws xob.
Post lub sij hawm: Aug-24-2023