Kev poob ntawm peb-theem AC motors tuaj yeem muab faib ua tooj liab poob, aluminium poob, hlau poob, poob poob, thiab cua poob.Thawj plaub yog cov cua sov poob, thiab cov lej ntawm lawv yog hu ua tag nrho cov cua sov poob.Qhov kev faib ua feem ntawm tooj liab poob, aluminium poob, hlau poob thiab stray poob mus rau tag nrho cov cua sov poob tau nthuav tawm thaum lub zog hloov ntawm me me mus rau qhov loj.Los ntawm cov piv txwv, txawm hais tias qhov kev faib ua feem ntawm tooj liab thiab txhuas noj nyob rau hauv tag nrho cov kub poob fluctuates, nws feem ntau txo los ntawm loj mus rau me me, uas qhia ib tug downward trend.Ntawm qhov tsis sib xws, hlau poob thiab poob poob, txawm tias muaj kev hloov pauv, feem ntau nce los ntawm qhov me mus rau qhov loj, qhia txog kev nce siab.Thaum lub hwj chim loj txaus, hlau dissipation stray dissipation tshaj qhov tooj liab dissipation.Qee lub sij hawm stray poob ntau tshaj tooj liab poob thiab hlau poob thiab dhau los ua thawj yam ntawm kev poob cua sov.Rov txheeb xyuas Y2 lub cev muaj zog thiab saib xyuas qhov kev hloov pauv ntawm ntau yam kev poob rau tag nrho cov kev poob qhia cov kev cai zoo sib xws.Paub txog cov cai saum toj no, nws tau txiav txim siab tias cov tshuab hluav taws xob sib txawv muaj qhov sib txawv ntawm kev txo qis kub nce thiab kub poob.Rau cov motors me, tooj liab yuav tsum raug txo ua ntej;rau nruab nrab thiab high-power motors, hlau poob yuav tsum tau tsom rau txo txoj kev poob.Qhov kev xav tias "txoj kev poob qis me dua li qhov poob tooj liab thiab poob hlau" yog ib sab.Nws yog tshwj xeeb tshaj yog hais tias qhov loj dua lub cev muaj zog lub cev muaj zog, yuav tsum tau them nyiaj mloog ntau dua los txo txoj kev poob.Nruab nrab thiab loj muaj peev xwm motors siv sinusoidal windings los txo cov harmonic magnetic muaj peev xwm thiab stray losses, thiab cov nyhuv yog feem ntau zoo heev.Ntau yam kev ntsuas los txo qis kev poob qis feem ntau tsis tas yuav ua kom cov khoom siv tau zoo.
Taw qhia
Qhov poob ntawm peb-theem AC lub cev muaj zog tuaj yeem muab faib ua tooj liab poob PCu, aluminium poob PAl, hlau poob PFe, stray loss Ps, cua hnav Pfw, thawj plaub yog cua sov poob, qhov sum ntawm uas yog hu ua tag nrho cov cua sov poob PQ, ntawm qhov poob poob Nws yog qhov ua rau tag nrho cov kev poob tsuas yog tooj liab poob PCu, aluminium poob PAl, hlau poob PFe, thiab cua coj Pfw, nrog rau kev sib nqus sib nqus, qhov sib nqus sib nqus, thiab sab nraud ntawm lub chute.
Vim qhov nyuaj ntawm kev xam qhov poob thiab qhov nyuaj ntawm qhov kev sim, ntau lub teb chaws tau hais tias qhov kev poob qis yog xam raws li 0.5% ntawm lub zog nkag ntawm lub cev muaj zog, uas yooj yim rau qhov tsis sib xws.Txawm li cas los xij, tus nqi no yog qhov ntxhib heev, thiab cov qauv sib txawv thiab cov txheej txheem sib txawv feem ntau sib txawv heev, uas tseem zais qhov tsis sib xws thiab tsis tuaj yeem cuam tshuam qhov tseeb ntawm kev ua haujlwm ntawm lub cev muaj zog.Tsis ntev los no, kev ntsuas qhov kev poob qis tau dhau los ua neeg nyiam.Nyob rau hauv lub era ntawm kev lag luam thoob ntiaj teb kev koom ua ke, nws yog qhov kev sib tw dav dav kom muaj qee qhov kev saib mus tom ntej yuav ua li cas koom nrog cov qauv thoob ntiaj teb.
Hauv daim ntawv no, peb-theem AC lub cev muaj zog tau kawm.Thaum lub zog hloov los ntawm me me mus rau qhov loj, qhov kev faib ua feem ntawm tooj liab poob PCu, aluminium poob PAL, hlau poob PFe, thiab stray poob Ps mus rau tag nrho cov kub poob PQ hloov, thiab cov kev tiv thaiv tau txais.Tsim thiab tsim khoom tsim nyog thiab zoo dua.
1. Kev soj ntsuam poob ntawm lub cev muaj zog
1.1 Ua ntej saib ib qho piv txwv.Ib lub Hoobkas xa tawm E series cov khoom lag luam ntawm cov tshuab hluav taws xob, thiab cov txheej txheem txheej txheem qhia txog kev ntsuas kev poob qis.Rau qhov yooj yim ntawm kev sib piv, cia peb xub saib 2-ncej motors, uas muaj zog ntawm 0.75kW txog 315kW.Raws li cov txiaj ntsig kev xeem, qhov piv ntawm tooj liab poob PCu, aluminium poob PAl, hlau poob PFe, thiab stray los Ps rau tag nrho cov kub poob PQ yog xam, raws li qhia hauv daim duab 1.Lub ordinate nyob rau hauv daim duab yog qhov piv ntawm ntau yam cua sov poob rau tag nrho cov cua sov poob (%), abscissa yog lub cev muaj zog lub cev muaj zog (kW), cov kab tawg nrog pob zeb diamond yog qhov feem ntawm tooj liab noj, cov kab tawg nrog squares yog cov kev faib ua feem ntawm aluminium noj, thiab cov kab tawg ntawm daim duab peb sab yog cov hlau tsis sib piv, thiab cov kab tawg nrog tus ntoo khaub lig yog qhov piv ntawm qhov poob.
Daim duab 1. Cov kab ntawv tawg ntawm qhov kev faib ua feem ntawm kev siv tooj liab, kev siv txhuas, kev siv hlau, stray dissipation thiab tag nrho cov cua sov poob ntawm E series 2-ncej motors
(1) Thaum lub zog ntawm lub cev muaj zog hloov ntawm qhov me mus rau qhov loj, qhov feem ntawm kev siv tooj liab, txawm tias hloov pauv, feem ntau txo qis los ntawm qhov loj mus rau me me, uas qhia txog kev poob qis.0.75kW thiab 1.1kW account rau txog 50%, thaum 250kW thiab 315kW tsawg dua Qhov kev faib ua feem ntawm 20% aluminium noj kuj tau hloov los ntawm loj mus rau me me feem ntau, qhia txog kev poob qis, tab sis qhov kev hloov pauv tsis loj.
(2) Los ntawm me me mus rau loj lub cev muaj zog, qhov kev faib ua feem ntawm cov hlau tsis hloov, txawm hais tias muaj kev hloov pauv, nws feem ntau nce los ntawm qhov me mus rau qhov loj, uas qhia txog kev nce siab.0.75kW ~ 2.2kW yog kwv yees li 15%, thiab thaum nws loj dua 90kW, nws tshaj 30%, uas yog ntau dua tooj liab noj.
(3) Kev hloov pauv hloov pauv ntawm kev tsis sib haum xeeb, txawm tias hloov pauv, feem ntau nce los ntawm qhov me mus rau qhov loj, uas qhia txog kev nce siab.0.75kW ~ 1.5kW yog hais txog 10%, thaum 110kW yog ze rau tooj liab noj.Rau cov lus qhia tshwj xeeb tshaj 132kW, feem ntau ntawm kev poob qis tshaj tooj liab noj.Qhov kev poob qis ntawm 250kW thiab 315kW tshaj qhov poob ntawm tooj liab thiab hlau, thiab dhau los ua thawj qhov tseem ceeb hauv kev poob cua sov.
4-ncej lub cev muaj zog (kab daim duab tshem tawm).Cov hlau poob siab tshaj 110kW yog ntau tshaj qhov poob ntawm tooj liab, thiab kev poob qis ntawm 250kW thiab 315kW tshaj qhov tooj liab poob thiab hlau poob, ua thawj qhov tshwm sim ntawm qhov kub poob.Cov txiaj ntsig ntawm kev siv tooj liab thiab kev siv txhuas ntawm cov koob no ntawm 2-6 ncej motors, lub cev muaj zog me me suav txog li 65% txog 84% ntawm tag nrho cov cua sov poob, thaum lub cev muaj zog loj txo mus rau 35% mus rau 50%, thaum hlau. kev noj yog qhov tsis sib xws, lub cev muaj zog me me rau kwv yees li 65% mus rau 84% ntawm tag nrho cov cua sov poob.Tag nrho cov cua sov poob yog 10% mus rau 25%, thaum lub cev muaj zog loj nce mus txog 26% mus rau 38%.Kev poob qis, cov motors me suav txog li 6% mus rau 15%, thaum lub cev muaj zog loj nce mus rau 21% mus rau 35%.Thaum lub hwj chim loj txaus, qhov poob ntawm cov hlau poob qis tshaj qhov tooj liab poob.Qee lub sij hawm qhov kev poob qis tshaj qhov poob ntawm tooj liab thiab hlau poob, dhau los ua thawj qhov tseem ceeb hauv kev poob cua sov.
1.2 R series 2-ncej lub cev muaj zog, ntsuas kev poob qis
Raws li qhov kev ntsuam xyuas, qhov piv ntawm tooj liab poob, hlau poob, stray poob, thiab lwm yam rau tag nrho cov kub poob PQ yog tau.Daim duab 2 qhia txog kev hloov pauv hauv lub cev muaj zog kom tsis txhob poob tooj liab.Lub ordinate nyob rau hauv daim duab yog qhov ratio (%) ntawm stray tooj liab poob mus rau tag nrho cov cua sov poob, abscissa yog lub cev muaj zog lub cev muaj zog (kW), cov kab tawg nrog pob zeb diamond yog qhov piv ntawm tooj liab poob, thiab cov kab tawg nrog squares yog. qhov ratio ntawm stray losses.Daim duab 2 qhia meej meej tias feem ntau, qhov loj dua lub cev muaj zog lub cev muaj zog, qhov ntau dua ntawm qhov kev poob qis rau tag nrho cov cua sov poob, uas yog nce.Daim duab 2 kuj qhia tau hais tias rau qhov ntau thiab tsawg dua 150kW, kev poob qis tshaj tooj liab.Muaj ntau qhov ntau thiab tsawg ntawm lub cev muaj zog, thiab kev poob qis txawm tias 1.5 txog 1.7 npaug ntawm tooj liab poob.
Lub zog ntawm no series ntawm 2-ncej motors ranges ntawm 22kW txog 450kW.Qhov piv ntawm qhov ntsuas kev poob qis rau PQ tau nce los ntawm tsawg dua 20% mus rau ze li 40%, thiab qhov kev hloov pauv loj heev.Yog hais tias qhia los ntawm qhov piv ntawm qhov ntsuas qhov poob mus rau qhov ntsuas tso zis hluav taws xob, nws yog li ntawm (1.1 ~ 1.3)%;Yog hais tias tau hais los ntawm qhov piv ntawm qhov ntsuas kev poob qis rau lub zog nkag, nws yog kwv yees li (1.0 ~ 1.2)%, qhov thib ob Qhov piv ntawm cov lus qhia tsis hloov ntau, thiab nws yog qhov nyuaj rau pom qhov hloov pauv ntawm cov neeg tsis pom kev. poob rau PQ.Yog li ntawd, kev soj ntsuam cov cua sov poob, tshwj xeeb tshaj yog qhov sib piv ntawm kev poob mus rau PQ, tuaj yeem nkag siab zoo dua txoj cai hloov pauv ntawm cua sov.
Qhov ntsuas kev poob qis hauv ob qhov xwm txheej saum toj no tau txais txoj hauv kev IEEE 112B hauv Tebchaws Meskas
Daim duab 2. Kab daim ntawv qhia ntawm qhov piv ntawm tooj liab stray poob rau tag nrho cov cua sov poob ntawm R series 2-ncej lub cev muaj zog
1.3 Y2 series motors
Cov txheej txheem kev qhia tau hais tias qhov kev poob qis yog 0.5% ntawm lub zog nkag, thaum GB / T1032-2005 qhia txog tus nqi pom zoo ntawm kev poob qis.Tam sim no siv txoj kev 1, thiab cov mis yog Ps = (0.025-0.005 × lg (PN)) × P1 formula PN- yog ntsuas lub zog;P1- yog input zog.
Peb xav tias qhov ntsuas tus nqi ntawm qhov poob qis yog sib npaug ntawm qhov pom zoo, thiab rov muab cov khoom siv hluav taws xob rov qab, thiab tom qab ntawd xam qhov sib piv ntawm plaub qhov kev poob qis ntawm tooj liab noj, aluminium noj thiab hlau noj rau tag nrho cov cua sov poob PQ. .Kev hloov ntawm nws qhov kev faib ua feem kuj yog raws li cov cai saum toj no.
Ntawd yog: thaum lub zog hloov pauv me me mus rau qhov loj, feem ntau ntawm kev siv tooj liab thiab kev siv txhuas feem ntau txo qis los ntawm qhov loj mus rau me me, uas qhia txog kev poob qis.Ntawm qhov tod tes, qhov kev faib ua feem ntawm cov hlau poob thiab kev poob qis feem ntau nce los ntawm qhov me mus rau qhov loj, uas qhia txog kev nce siab.Txawm hais tias 2-ncej, 4-ncej, lossis 6-ncej, yog tias lub zog loj dua li ib lub zog, qhov poob ntawm cov hlau yuav dhau ntawm cov tooj liab;qhov kev faib ua feem ntawm kev poob qis kuj tseem yuav nce los ntawm me me mus rau qhov loj, maj mam nce mus txog qhov poob tooj liab, lossis txawm tias tshaj qhov tooj liab poob.Cov stray dissipation ntawm ntau tshaj 110kW hauv 2 ncej dhau los ua thawj qhov tseem ceeb hauv kev poob cua sov.
Daim duab 3 yog cov kab tawg tawg ntawm qhov piv ntawm plaub qhov kev poob cua sov rau PQ rau Y2 series 4-ncej motors (piv txwv tias qhov ntsuas tus nqi ntawm kev poob qis yog sib npaug rau cov lus pom zoo saum toj no, thiab lwm yam kev poob raug xam raws li tus nqi) .Lub ordinate yog qhov piv ntawm ntau yam cua sov poob rau PQ (%), thiab abscissa yog lub cev muaj zog (kW).Obviously, hlau stray poob siab tshaj 90kW yog ntau dua tooj liab poob.
Daim duab 3. Cov kab ntawv tawg ntawm qhov piv ntawm kev siv tooj liab, kev siv txhuas, hlau noj thiab stray dissipation rau tag nrho cov cua sov poob ntawm Y2 series 4-ncej motors
1.4 Cov ntaub ntawv kawm txog qhov sib piv ntawm ntau yam kev poob rau tag nrho cov kev poob (nrog rau kev sib txhuam cua)
Nws tau pom tias kev siv tooj liab thiab txhuas siv nyiaj suav nrog 60% mus rau 70% ntawm tag nrho cov kev poob hauv cov motors me, thiab txo mus rau 30% mus rau 40% thaum lub peev xwm nce, thaum noj hlau yog qhov txawv.% saum toj no.Rau kev poob qis, cov motors me muaj li ntawm 5% mus rau 10% ntawm tag nrho cov kev poob, thaum cov motors loj muaj ntau dua 15%.Cov kev cai lij choj qhia tau zoo sib xws: uas yog, thaum lub zog hloov ntawm me me mus rau qhov loj, qhov feem ntawm cov tooj liab poob thiab aluminium poob feem ntau txo qis los ntawm qhov loj mus rau me me, uas qhia txog kev poob qis, thaum qhov feem ntawm cov hlau poob thiab kev poob qis feem ntau nce los ntawm me me mus rau loj, qhia txog kev nce siab..
1.5 Kev suav cov mis ntawm cov nqi pom zoo ntawm kev poob qis raws li GB / T1032-2005 Txoj Kev 1
Tus lej yog qhov ntsuas qhov poob qis.Los ntawm me me mus rau loj lub cev muaj zog lub cev muaj zog, qhov kev faib ua feem ntawm txoj kev poob mus rau kev hloov pauv hloov pauv, thiab maj mam txo qis, thiab qhov kev hloov pauv tsis yog me me, txog 2.5% mus rau 1.1%.Yog hais tias tus denominator hloov mus rau tag nrho cov poob ∑P, uas yog, Ps/∑P = Ps/P1/(1-η), yog hais tias lub cev muaj zog efficiency yog 0.667 ~ 0.967, lub reciprocal ntawm (1-η) yog 3 ~ 30, uas yog, qhov ntsuas impurity Piv nrog rau qhov sib piv ntawm cov khoom siv hluav taws xob, qhov sib piv ntawm dissipation poob rau tag nrho cov poob yog amplified los ntawm 3 mus rau 30 zaug.Lub zog siab dua, txoj kab tawg nrawm dua.Pom tseeb, yog tias qhov sib piv ntawm qhov poob mus rau tag nrho cov cua sov poob, qhov "kev nthuav dav" loj dua.Rau R series 2-ncej 450kW lub cev muaj zog hauv qhov piv txwv saum toj no, qhov sib piv ntawm kev poob qis rau cov khoom siv hluav taws xob Ps / P1 yog me ntsis me dua li cov nqi ntsuas tau pom zoo saum toj no, thiab qhov sib piv ntawm kev poob mus rau tag nrho poob ∑P thiab tag nrho cov cua sov poob. PQ yog 32.8%, feem.39.5%, piv rau qhov piv ntawm cov tswv yim fais fab P1, "amplified" txog 28 zaug thiab 34 zaug feem.
Cov txheej txheem ntawm kev soj ntsuam thiab kev tshuaj xyuas hauv daim ntawv no yog coj qhov piv ntawm 4 hom kev poob cua sov rau tag nrho cov cua sov poob PQ.Tus nqi piv yog loj, thiab qhov kev faib ua feem thiab kev hloov txoj cai ntawm ntau yam kev poob yuav pom meej meej, uas yog, lub zog los ntawm me me mus rau loj, tooj liab noj thiab txhuas noj feem ntau, qhov kev faib ua feem tau hloov los ntawm loj mus rau me me, uas qhia ib tug downward. trend, thaum qhov kev faib ua feem ntawm cov hlau poob thiab stray poob feem ntau hloov los ntawm me me mus rau loj, uas qhia ib tug upward trend.Tshwj xeeb, nws tau pom tias qhov loj dua lub zog ntawm lub cev muaj zog, qhov siab dua qhov sib piv ntawm kev poob mus rau PQ, maj mam nce qhov tooj liab poob, tshaj qhov tooj liab poob, thiab txawm dhau los ua thawj qhov kev poob ntawm qhov kub, yog li peb tuaj yeem nkag siab zoo. txoj cai thiab xyuam xim kom txo tau lub cev muaj zog loj.stray losses.Piv nrog rau qhov sib piv ntawm kev poob qis rau cov khoom siv hluav taws xob, qhov piv ntawm qhov ntsuas qhov poob mus rau tag nrho cov cua sov poob tsuas yog qhia rau lwm txoj hauv kev, thiab tsis hloov nws lub cev.
2. Kev ntsuas
Paub txog txoj cai saum toj no yuav pab tau rau kev tsim thiab tsim lub cev muaj zog.Lub zog ntawm lub cev muaj zog yog qhov sib txawv, thiab kev ntsuas kom txo qhov kub thiab txias poob yog qhov sib txawv, thiab qhov ua kom pom tseeb txawv.
2.1 Rau cov tshuab hluav taws xob qis, tooj liab noj nyiaj rau qhov feem ntau ntawm tag nrho cov cua sov poob
Yog li ntawd, txo qhov kub thiab txias yuav tsum tau ua ntej txo cov tooj liab noj, xws li nce tus ntoo khaub lig seem ntawm cov hlau, txo tus naj npawb ntawm conductors rau ib qhov, ua rau lub stator slots, thiab lengthening cov hlau core.Nyob rau hauv lub Hoobkas, qhov kub thiab txias yog feem ntau tswj los ntawm kev tswj lub tshav kub load AJ, uas yog kiag li raug rau me me motors.Kev tswj AJ yog qhov tseem ceeb tswj cov tooj liab poob.Nws tsis yog qhov nyuaj los nrhiav cov stator tooj liab poob ntawm tag nrho lub cev muaj zog raws li AJ, lub puab txoj kab uas hla ntawm lub stator, ib nrab tig ntev ntawm lub kauj, thiab cov resistivity ntawm tooj liab hlau.
2.2 Thaum lub zog hloov me me mus rau qhov loj, qhov poob ntawm cov hlau maj mam nce mus rau qhov poob ntawm tooj liab
Hlau noj feem ntau tshaj tooj liab noj thaum nws siab tshaj 100kW.Yog li ntawd, cov motors loj yuav tsum tau them sai sai rau kev txo cov hlau noj.Rau cov kev ntsuas tshwj xeeb, cov ntawv tsis tshua muaj silicon steel tuaj yeem siv tau, qhov sib nqus ntawm cov stator yuav tsum tsis txhob siab dhau, thiab kev saib xyuas yuav tsum tau them rau qhov tsim nyog faib ntawm qhov sib nqus ntawm txhua qhov.
Qee lub tuam txhab tsim kho qee lub tshuab hluav taws xob muaj zog thiab tsim nyog txo cov stator qhov zoo.Lub zog sib nqus kom ruaj khov yog tsim nyog, thiab piv ntawm tooj liab ploj thiab hlau poob yog hloov kho kom raug.Txawm hais tias stator tam sim no nce, cov thermal thauj khoom nce, thiab cov tawv tawv poob txo qis dua li cov tooj liab ploj zuj zus.Qhov kev ua tau zoo sib npaug rau tus qauv tsim, tsis yog tsuas yog qhov kub thiab txias tau txo, tab sis kuj yog cov tooj liab siv hauv stator tau txais kev cawmdim.
2.3 Txhawm rau txo cov kev poob yuam kev
Kab lus no qhia meej tias covntau dua lub cev muaj zog lub cev muaj zog, yuav tsum tau them nyiaj mloog ntau dua kom txo qis kev poob.Lub tswv yim hais tias "txoj kev poob qis me dua li qhov poob tooj liab" tsuas yog siv rau cov motors me xwb.Pom tseeb, raws li kev soj ntsuam thiab kev soj ntsuam saum toj no, qhov siab dua lub zog, qhov tsis haum nws yog.Qhov kev pom tias "kev poob qis me me dua li kev poob hlau" kuj yog qhov tsis tsim nyog.
Qhov piv ntawm qhov ntsuas tus nqi ntawm kev poob mus rau lub zog nkag yog siab dua rau cov motors me, thiab qhov sib piv yog qis dua thaum lub zog loj dua, tab sis nws tsis tuaj yeem txiav txim siab tias cov motors me yuav tsum tau them sai sai rau kev txo qis kev poob, thaum lub cev muaj zog loj. tsis tas yuav txo txoj kev poob qis.poob.Ntawm qhov tsis sib xws, raws li cov piv txwv saum toj no thiab kev txheeb xyuas, qhov loj dua lub zog ntawm lub cev muaj zog, qhov sib piv ntawm kev poob mus rau tag nrho cov cua sov poob, qhov poob thiab cov hlau poob ze ze los yog ntau dua cov tooj liab poob, yog li qhov ntau dua. lub cev muaj zog lub cev muaj zog, ntau xim yuav tsum tau them rau nws.Txo kev poob stray.
2.4 Kev ntsuas los txo qis kev poob yuam kev
Txoj hauv kev los txo qis kev poob qis, xws li nce qhov sib txawv ntawm huab cua, raws li qhov kev poob qis yog kwv yees li inversely proportional rau square ntawm huab cua sib txawv;txo qhov muaj peev xwm sib nqus sib nqus, xws li siv sinusoidal (tsawg harmonic) windings;tsim nyog qhov chaw;txo coggging, Lub rotor txais yuav kaw qhov, thiab qhib qhov ntawm high-voltage lub cev muaj zog adopts magnetic slot wedge;cam khwb cia txhuas rotor shelling kev kho mob txo lateral tam sim no, thiab hais txog.Nws yog tsim nyog sau cia tias cov kev ntsuas saum toj no feem ntau tsis tas yuav tsum tau ntxiv cov khoom siv zoo.Lwm yam kev noj haus kuj tseem cuam tshuam rau lub xeev cua sov ntawm lub cev muaj zog, xws li cov cua kub zoo ntawm cov cua sov, qhov kub thiab txias ntawm lub cev muaj zog, thiab lwm yam kev noj tsawg.
Piv txwv li: Lub Hoobkas kho lub cev muaj zog nrog 6 tus ncej thiab 250kW.Tom qab kev kho kho, qhov kub nce mus txog 125K hauv qab 75% ntawm cov ntsuas ntsuas.Qhov sib txawv ntawm huab cua yog tom qab ntawd tshuab rau 1.3 npaug ntawm qhov loj me.Nyob rau hauv qhov kev ntsuam xyuas nyob rau hauv rated load, qhov kub nce mus rau 81K, uas tag nrho qhia tau hais tias cov huab cua sib txawv tau nce thiab cov stray dissipation tau txo heev.Harmonic magnetic muaj peev xwm yog ib qho tseem ceeb rau txoj kev poob.Nruab nrab thiab loj muaj peev xwm motors siv sinusoidal windings kom txo tau harmonic magnetic muaj peev xwm, thiab cov nyhuv yog feem ntau zoo heev.Zoo-tsim sinusoidal windings yog siv rau nruab nrab thiab high-power motors.Thaum qhov kev sib haum xeeb thiab qhov amplitude raug txo los ntawm 45% mus rau 55% piv nrog cov qauv qub, qhov kev poob qis tuaj yeem txo los ntawm 32% mus rau 55%, txwv tsis pub qhov kub nce yuav raug txo, thiab qhov ua tau zoo yuav nce ntxiv., lub suab nrov txo, thiab nws tuaj yeem txuag tau tooj liab thiab hlau.
3. Cov lus xaus
3.1 Peb-theem AC lub cev muaj zog
Thaum lub zog hloov los ntawm me me mus rau qhov loj, qhov kev faib ua feem ntawm kev siv tooj liab thiab txhuas noj rau tag nrho cov cua sov feem ntau nce los ntawm qhov loj mus rau me me, thaum qhov kev faib ua feem ntawm kev siv hlau tsis zoo feem ntau nce los ntawm me mus rau loj.Rau cov motors me, tooj liab poob nyiaj rau qhov feem ntau ntawm tag nrho cov cua sov poob.Raws li lub zog muaj peev xwm nce, kev poob qis thiab kev poob hlau mus kom ze thiab tshaj tooj liab poob.
3.2 Los txo qhov kub poob
Lub zog ntawm lub cev muaj zog yog qhov sib txawv, thiab qhov tseem ceeb ntawm kev ntsuas ntsuas kuj txawv.Rau cov motors me, kev siv tooj liab yuav tsum raug txo ua ntej.Rau nruab nrab thiab high-power motors, yuav tsum tau them nyiaj mloog mus ntxiv kom txo tau cov hlau tsis zoo thiab stray poob.Qhov kev xav tias "kev poob poob qis tsawg dua li qhov poob tooj liab thiab poob hlau" yog ib sab.
3.3 Qhov kev faib ua feem ntawm kev poob qis hauv tag nrho cov cua sov poob ntawm cov motors loj yog siab dua
Daim ntawv no qhia meej tias lub zog ntawm lub cev muaj zog ntau dua, yuav tsum tau them nyiaj ntau dua kom txo qis kev poob.
Post lub sij hawm: Jun-16-2022