Xav rov qab rau cov hnub thaum semiconductors tsis tau muaj, thaum qhov teeb meem nteg hauv nceDcvolasages rau cov pib tsawg-zog. Ib qho ntawm vibrator licuits hloov dua siab tshiabDC rau AC, thiab tom qab ntawd kauj ruam hloov pauv tau siv los txhawb cov hluav taws xob. Lub Rectifier Circuit Court yog cov thawj sab xis kawg txij li nws tau qhib DC kev hloov dua siab tshiab. Lub tshuab hluav taws xob-lub tshuab hluav taws xob tau coj mus rau cov kev mob siab, nrog lub cev muaj zog txoj kev ua kom spining lub tshuab hluav taws xob kom muab cov khoom hluav taws xob uas tsim nyog.
Txawm hais tias cov tswv yim no tau ua tiav, lawv tau kim heev thiab tsis muaj txiaj ntsig, tseem lawv muaj kev tsis muaj nqi rau lwm txoj kev xaiv. Nrog kev pom zoo ntawm cov hluav taws xob soobualductors thiab kev sib tw ua ke, cov hloov pauv DC cov khoom siv hluav taws xob tau tshwm sim los ua tus yeej ntshiab hauv lub tsheb hluav taws xob (EV). Rectifiers tau siv los hloov AC fais fab rov qab rau hauv DC, ua cov kev tswj hwm hluav taws xob siv hluav taws xob muaj zog siv tau.
Vim li cas EVS xav tau DC-DC convers
Txhawm rau kom tau raws li cov kev xav tau ntau ntxiv ntawm cov kev pab cuam ntawm Evs thiab hybrid, roj teeb vuam, txawm tias tam sim no ntws thiab cable complexity tau nyob ruaj khov. Txawm li cas los xij, tsis yog txhua qhov hluav taws xob hluav taws xob hauv kev sib tw ntawm cov hluav taws xob, uas yog qhov chaw muaj hluav taws xob ntau dua (APM), tuaj yeem pom hauv ib lub tsheb hluav taws xob lossis hluav taws xob siab.
DC-DC conterers rau EVS feem ntau poob rau ib ntawm ob pawg - cov kauj ruam ntawm cov kev sib tw siab (PETERT Voltage Piv txwv li, lub tsheb sib hloov ua haujlwm hauv DC-DC yog lub luag haujlwm rau txo qhov roj teeb los ntawm cov tshuab, uas yog tom qab siv ntau yam, twj thiab lub qhov rais lub qhov rais. Qhov yoog tau ntawm lub converter no ua rau nws zoo tagnrho rau kev sib ntsib ntau yam ntawm cov khoom yuav tsum tau ua. Hauv qee qhov xwm txheej, DC-DC cov lus hloov pauv tau hu ua kev ua haujlwm twv txiaj, encompassing ob qho kev ua haujlwm sib txawv thiab kauj ruam-down functions, feem ntau ntsib hauv cov kev teeb tsa me hybrid.
Hom DC-DC Converers hauv Evs
DC / DC Conterters tuaj yeem tiv thaiv ib txwm ua ob pawg tseem ceeb:
Cov hloov dua siab tsis muaj kev sib cais
Qhov kev hloov pauv ntawm kev hloov pauv no thaum muaj kev yuav tsum tau hloov pauv qhov hluav taws xob los ntawm qhov tsawg dua 4: 1), thiab thaum tsis muaj qhov xav tau rau kev sib cais ntawm cov lus qhia thiab tso zis. Hauv pab pawg no, muaj tsib hom ntawm cov hloov tshiab: Phaw, boost, buck-boost, CUK thiab lub rooj them nqi twj siv. Lub phaw-boost thiab cuk conterters tuaj yeem ua ob qho dav dav hluav taws xob txo thiab nce cov haujlwm. Ntawm qhov tod tes, cov nqi them nyiaj rov qab yog tsim nyog rau tog voltage lossis inverting nws, txawm tias nws tau siv rau cov ntawv thov hluav taws xob qis dua.
Conterers nrog kev rho tawm
Hauv pawg ntawm cov hloov pauv, hloov pauv ntau zaus yog siv tau siv. Cov xwm txheej ua tiav yog qhov yuav tsum tau nruab nrab ntawm cov zis thiab nkag hu rau Cais Hloov Hloov Hloov. Ntau hom kev hloov pauv nyob rau hauv pawg no, suav nrog ib nrab choj, puv-choj, ya-rov qab, xa mus rau pem hauv ntej thiab thawb-rub-rub-rub tawm DC / DC Conterters. Tag nrho cov converters no muab qhov zoo dua ntawm kev bidirectional thiab muaj peev xwm ua tiav cov kev txo siab siab txo lossis nce sib piv.
Yam los txiav txim siab thaum tsim qauv DC-DC converter rau ib qho
Thaum xaiv DC-DC hloov kho DC rau EV, muaj ntau yam los txiav txim siab. Ib qho tseem ceeb yog lub zog hloov hluav taws xob muaj peev xwm, raws li lub converter yuav tsum muaj peev xwm muab tau txhim khu kev qha thiab hloov chaw hluav taws xob sai. Kev ua tau zoo yog lwm qhov kev hloov pauv, raws li lub converter yuav tsum muaj peev xwm hloov zuj zus thiab hloov hluav taws xob ntawm cov khoom siv hluav taws xob thiab EV. Tus naj npawb ntawm cov cheebtsam thiab cov kev sib xyaw ua ke kuj tseem ceeb, raws li kev siv nyiaj tsawg dua tuaj yeem ua rau muaj kev sib txuas lus ntxiv thiab siv tau nqi. Tsis tas li ntawd, lub converter yuav tsum tau lis cov high-zog thiab qib siab-tam sim no, ua rau nws haum rau kev siv EV. Thaum kawg, kev tswj hwm kev siv thiab kev xaiv ntawm lub tswv yim tswj tau yuav tsum tau txiav txim siab ua haujlwm kom zoo thiab ua haujlwm ntawm lub converter.
Qhov zoo ntawm DC-DC conterers rau EVS
Lub Zog Hloov DC-DC-DC muaj kev hloov pauv hluav taws xob muaj txiaj ntsig zoo dua qub thiab tuaj yeem daws cov kev txwv ntawm lub zog niaj hnub no.
Muaj ntau cov tshuab ntsuas thiab cov khoom siv hauv cov tsheb yog tsim los ua haujlwm ntawm tus qauv tsheb Automotive ntau qib (piv txwv li, 12 v). Txij li thaum Evs feem ntau siv cov roj teeb ntau dua, DC-DC conterers xyuas kom haum los ntawm muab qhov tsim nyog ntsuas rau cov khoom siv no.
Bidirectional convers yog qhov tsim nyog rau cov ntawv thov tsis muaj hluav taws xob tsawg, tab sis lawv tsis tuaj yeem tsim nyog rau cov ntawv thov hluav taws xob siab vim tias nce siab.
Bidirectional conversers kuj pab rau hauv cov ntawv thov braking, qhov twg lub zog tsim tawm thaum lub sij hawm tuaj yeem hloov rov qab rau hauv lub zog siv tau thiab muab khaws cia rau hauv lub roj teeb loj.
Raug rho tawm DC-DC muab qhov kev nyab xeeb uas tseem ceeb hauv Evs. Lawv tsim kev thaiv ntawm cov hluav taws xob high-voltage, zoo li cov roj teeb tev roj, thiab cov tshuab hluav taws xob tsawg.