-Yog tias koj xav tau kev them ceev rau koj lub tsheb fais fab, koj yuav tsum siv cov thev naus laus zis siab-voltage, high-current rau kev them cov pawg

Kev siv tshuab hluav taws xob siab thiab hluav taws xob siab

Raws li qhov ntau thiab tsawg maj mam nce ntxiv, muaj cov teeb meem xws li luv lub sijhawm them thiab txo tus nqi ntawm kev muaj, thiab thawj txoj haujlwm yog los ua kom zoo dua qhov loj me ntawm lub module kom ua tiav kev hloov kho hluav taws xob. Txij li thaum lub zog ntawmpawg them nqifeem ntau nyob ntawm lub zog sib tshooj ntawm lub module them, thiab raug txwv los ntawm qhov ntim khoom, qhov chaw hauv pem teb thiab tus nqi tsim khoom, tsuas yog nce tus naj npawb ntawm cov modules tsis yog qhov kev daws teeb meem zoo tshaj plaws lawm. Yog li ntawd, yuav ua li cas kom nce lub zog ntawm ib lub module yam tsis ntxiv qhov ntim ntxiv tau dhau los ua teeb meem kev siv tshuab uascov chaw tsim khoom ntawm cov khoom them nqi moduleyuav tsum kov yeej sai sai.

Cov khoom siv them hluav taws xob DCSiv cov thev naus laus zis siab thiab siab voltage, nws muaj peev xwm them tau sai heev. Nrog rau qhov nce ntawm voltage thiab lub zog maj mam, qhov no ua rau muaj kev cai nruj dua rau kev ua haujlwm ruaj khov, kev ua kom sov zoo thiab kev hloov pauv ntawm lub charging module, uas ua rau muaj teeb meem ntau dua rau cov tuam txhab tsim cov charging module.

Vim yog qhov kev thov ntawm kev ua lag luam rau kev them ceev ceev uas muaj zog heev, cov chaw tsim khoom siv them fais fab yuav tsum tsim kho tshiab thiab txhim kho cov thev naus laus zis tseem ceeb thiab tsim lawv cov teeb meem kev siv tshuab tseem ceeb. Qhov no yuav yog qhov tseem ceeb rau kev sib tw ua lag luam yav tom ntej, tsuas yog los ntawm kev paub txog cov thev naus laus zis tseem ceeb, thiaj li yuav tsis muaj kev sib tw hauv kev sib tw ua lag luam hnyav.

1) Txoj kev siab-tam sim no: qib kev nce qib qis, thiab qhov yuav tsum tau ua rau kev tswj hwm thermal siab. Raws li Joule txoj cai (formula Q = I2Rt), qhov nce ntawm tam sim no yuav ua rau muaj cua sov ntau thaum lub sijhawm them, uas muaj qhov xav tau siab rau kev tso cua sov, xws li Tesla txoj kev daws teeb meem them ceev ceev tam sim no, uas nws V3 supercharging pawg muaj qhov siab tshaj plaws ua haujlwm tam sim no ntau dua 600A, uas xav tau cov xov hlau tuab dua, thiab tib lub sijhawm, nws muaj qhov xav tau siab dua rau kev siv tshuab tso cua sov, thiab tsuas yog ua tiav lub zog them siab tshaj plaws ntawm 250kW hauv 5% -27% SOC, thiab kev them nqi zoo tsis tau them tag nrho. Tam sim no, cov tuam txhab tsim tsheb hauv tsev tsis tau ua qhov kev hloov pauv tseem ceeb hauv cov txheej txheem tso cua sov, thiabcov pawg them hluav taws xob siabvam khom ntau rau cov txheej txheem uas lawv tus kheej tsim, ua rau cov nqi txhawb nqa siab.

2) Txoj Kev Siv Hluav Taws Xob Siab: Nws yog hom uas cov tuam txhab tsim tsheb feem ntau siv, uas tuaj yeem xav txog qhov zoo ntawm kev txo kev siv hluav taws xob, txhim kho lub neej roj teeb, txo qhov hnyav, thiab txuag qhov chaw. Tam sim no, txwv los ntawm lub peev xwm tiv taus hluav taws xob ntawm cov khoom siv hluav taws xob IGBT silicon, qhov kev daws teeb meem them ceev ceev uas cov tuam txhab tsheb feem ntau siv yog lub platform hluav taws xob siab 400V, uas yog, lub zog them ntawm 100kW tuaj yeem ua tiav nrog tam sim no ntawm 250A (100kW lub zog tuaj yeem them rau 10 feeb rau kwv yees li 100km). Txij li thaum Porsche's 800V lub platform hluav taws xob siab (ua tiav 300KW lub zog thiab txiav ib nrab ntawm cov xov hluav taws xob siab), cov tuam txhab tsheb loj tau pib tshawb fawb thiab teeb tsa lub platform hluav taws xob siab 800V. Piv nrog rau lub platform 400V, lub platform hluav taws xob 800V muaj qhov tam sim no ua haujlwm me dua, uas txuag qhov ntim ntawm cov xov hluav taws xob, txo qhov tsis kam sab hauv ntawm lub voj voog, thiab txhim kho qhov ceev ntawm lub zog thiab kev siv hluav taws xob zoo hauv kev zais.

Tam sim no, qhov hluav taws xob tas mus li ntawm cov module 40kW hauv kev lag luam yog 300Vdc ~ 1000Vdc, uas sib xws nrog cov kev xav tau them ntawm cov tsheb thauj neeg 400V platform tam sim no, cov tsheb npav 750V thiab cov tsheb thauj neeg siab 800V-1000V yav tom ntej; Qhov hluav taws xob tso zis ntawm 40kW module ntawm Infineon, Telai thiab Shenghong tuaj yeem ncav cuag 50Vdc ~ 1000Vdc, coj mus rau hauv tus account cov kev xav tau them ntawm cov tsheb qis-voltage. Hauv cov nqe lus ntawm kev ua haujlwm zoo ntawm lub module, cov modules ua haujlwm siab 40kW ntawmBeiHai zogsiv cov khoom siv fais fab SIC, thiab qhov ua tau zoo tshaj plaws tuaj yeem ncav cuag 97%, uas siab dua li qhov nruab nrab ntawm kev lag luam.