Qee qhov chaw siv Inverter Conventiv lub cev muaj zog yuav tshwm sim cov teeb meem Peb txhua tus paub tias lub cev muaj zog yog lub zog peb-theem stator wighting, lub zog uas muaj kev sib nqus hluav taws xob yog nyob ntawm qhov loj me ntawm qhov loj me hloov cov zaus ntawm zaus converter igbt, vim yog kev tswj hwm siab, hloov ceev nrawm nrawm, ces DV / DT loj, Nyob rau tib lub sijhawm, qhov ua rau lub zog hluav taws xob loj heev, tus neeg kov ntawm qhov muaj kev xav ntawm hluav taws xob. Theoretically, yoo hloov nrawm ntawm igbt, ntau dua qhov kev tswj hwm tau rau lub cev muaj zog, siab dua cov hluav taws xob tom qab kov, ntawm qhov tsis sib xws , tus neeg hloov zuj zus ntawm IGBT qeeb, cov kev xav ntawm lub zog hluav taws xob yuav me, thiab qhov kev xav zoo me me, yog li cov khoom lag luam qis hauv cov qauv hauv Hloov cov zaus nyob ntawm qhov qis qis, thiab cov quab yuam hluav taws xob tom qab tswj lub cev muaj zog me me, thiab cov neeg kov nws tsis muaj kev xav. Tab sis nws txoj kev tswj yog pluag, cov lus teb zoo qeeb heev.
Cov zis ntawm Inverter yog tswj los ntawm PWM (mem tes dav, zoo ib yam li kev kub hloov), yog li ntawd, siab siab towage tam sim no yuav tshwm sim. Cov kab ke hauv qab no tuaj yeem txiav txim qhov loj me ntawm cov kab ke, thiab xaiv cov kab mob tsis txaus ntseeg los txhim kho cov kab mob tsis zoo los txhim kho Circuit Court breaker tripping tom qab muab fais fab. Ua ntej tshaj plaws, Inverter, Pem Hauv Ntej Khoom Siv Hluav Taws Xob, Lub Cev Muaj Zog Peb Hloov Khoom Siv PE point, thiab tom qab ntawd koom ua ke rau hauv av.
Zaus converter yog qhov siab tshaj plaws square yoj voltage tso zis ntawm lub cev muaj zog sab hauv cheil thiab lub cev muaj zog cov xau tam sim no. Yog tias tsis txhob ua av lossis tsis zoo, yuav muaj cov kab mob tsis txaus siab.
Yam cuam tshuam rau qhov loj me ntawm cov toast tam sim no yog:
(1) Qaug tam sim no ntawm txoj kab cable (muaj ob ntu)
Kev xau dej tam sim no ntawm cov cable ntev ntawm to qhov Circuit Court breaker thiab lim. Kev xau dej ntawm cov cable ntev ntawm inverter thiab lub cev muaj zog.
(2) Qaim tam sim no ntawm lim (suav nrog inverter).
(3) Qaim tam sim no lub cev muaj zog.
Qee qhov chaw tau siv Inverter kom tswj lub zog, yuav muaj cov teeb meem to taub hau, tozing volts rau 200 volts ranging los ntawm voltage. Rau qhov teeb meem no, cov laj thawj rau qhov tshwm sim no tau txheeb xyuas raws li hauv qab no:
Raws li cov kev ua haujlwm thaiv ntawm Inverter tswj kev ua haujlwm, thiab tom qab ntawd lub capacitor filting, thiab tom qab ntawd inverter Choj tiv thaiv peb -Phase Alternating tam sim no nrog kev kho cov zaus thiab voltage kom tswj tau lub lag luam ntawm lub cev muaj zog.
Lub peb-theem hloov tshiab nrog 120 degree ntws los ntawm peb-theem stator coil, yog li lub rotating sib sau ua ke nyob rau hauv kev ua ntawm lub rotating sib nraus teb ntawm lub stator winding.
Qhov peb-theem stator winding ntawm lub cev muaj zog tsim tawm cov chaw sib nqus tshiab tom qab lub zog hluav taws xob (EMF) yog tsim tawm hauv lub cev muaj zog. Qhov loj me ntawm qhov kev quab yuam hauv lub zog hluav taws xob yog nyob ntawm qhov loj me ntawm cov zaus ntawm inverter igbt thiab c × DV / DT (cuam tshuam nrog hloov nrawm ntawm IGBT). Yog hais tias qhov no ua rau lub zog hluav taws xob yog loj, ces tib neeg kov yuav zoo li hluav taws xob. Theoretically, lub zog hloov cov zaus ntawm lub plhaub hluav taws xob raug thiab ntau dua, thiab cov lus teb zoo dua qub kuj yog siab dua, tib neeg Lub cev kov tom qab txoj kev xav ntawm cov hluav taws xob hluav taws xob tau ntau dua; Conversely, qis dua qhov chaw hloov ntawm IGBT, lub cev muaj zog) yog qis dua ntawm lub cev hluav taws xob yog qhov kev xav ntawm kev ua kom me dua. Me dua.
Vim yog lub cev muaj zog ua haujlwm, lub cev muaj zog yuav muaj lub chaw tsim khoom siv hluav taws xob hauv lub davhlau ya nyob sab hauv lub davhlau ya nyob sab hauv lub davhlau ya nyob sab hauv lub chaw tsim khoom, kom pab txhawb tus neeg siv hauv daim ntawv thov Txuas rau lub ntiaj teb kom tshem tawm cov inducteromotive quab yuam (piv txwv li, kom daws cov neeg tsis muaj zog), txhawm rau daws lub cev tsis muaj hluav taws xob.
Thaum lub cev muaj zog ua haujlwm los ntawm kev lag luam ntau zaus, hloov cov zaus ntawm kev lag luam ntau tshaj yog kwv yees li ntawm kev to taub (tshwj tsis yog rulfulion ntawm lub cev muaj zog heev). Thaum inverter tswj, vim tias nws tau hloov ntau dua li ntau zaus tshaj li cov zaus ntawm kev sib hloov ntawm kev sib hloov, lub cev lub plhaub yuav muaj qhov zoo li tsis muaj kev lom.