Sab hauv ntawm lub tsheb yog tsim los ntawm ntau yam khoom, tshwj xeeb tshaj yog tom qab hluav taws xob.Lub hom phiaj ntawm lub platform voltage yog kom phim lub zog xav tau ntawm qhov sib txawv.Qee qhov yuav tsum muaj qhov tsis tshua muaj hluav taws xob, xws li lub cev hluav taws xob, khoom siv lom zem, cov tswj hwm, thiab lwm yam.high voltage, xws li roj teeb systems, high voltage tsav systems, them systems, thiab lwm yam. (400V / 800V), yog li muaj ib tug high voltage platform thiab tsawg voltage platform.
Tom qab ntawd qhia meej txog kev sib raug zoo ntawm 800V thiab super ceev ceev: Tam sim no cov neeg caij tsheb ntshiab hluav taws xob feem ntau yog hais txog 400V roj teeb system, cov khoom siv sib txuas, cov khoom siv hluav taws xob, hluav taws xob hluav taws xob kuj yog tib theem voltage, yog tias qhov system voltage nce, nws txhais tau tias. nyob rau hauv tib lub zog xav tau, qhov tam sim no tuaj yeem raug txo los ntawm ib nrab, tag nrho lub cev poob qis dua, cov cua sov yog txo, tab sis kuj hnyav ntxiv, lub tsheb ua haujlwm tau zoo heev.
Qhov tseeb, kev them nyiaj ceev tsis yog cuam tshuam ncaj qha rau 800V, feem ntau vim tias qhov them tus nqi ntawm lub roj teeb siab dua, tso cai rau lub zog them ntau dua, uas nws tus kheej tsis muaj dab tsi cuam tshuam nrog 800V, ib yam li Tesla's 400V platform, tab sis nws kuj tuaj yeem ua tiav super ceev. them nyob rau hauv daim ntawv ntawm high tam sim no.Tab sis 800V yog kom ua tiav lub zog them nyiaj muaj lub hauv paus zoo, vim tias tib yam kom ua tiav 360kW them lub zog, 800V txoj kev xav tsuas yog xav tau 450A tam sim no, yog tias nws yog 400V, nws xav tau 900A tam sim no, 900A hauv cov txheej txheem tam sim no rau cov neeg caij tsheb yog yuav luag tsis yooj yim sua.Yog li ntawd, nws yog qhov tsim nyog los txuas 800V thiab super ceev them ua ke, hu ua 800V super ceev them thev naus laus zis platform.
Tam sim no, muaj peb homhigh-voltagesystem architectures uas xav kom ua tiav high-power ceev them, thiab tag nrho cov high-voltage system yuav tsum tau los ua mainstream:
(1) Tag nrho qhov system siab voltage, uas yog, 800V fais fab roj teeb + 800V lub cev muaj zog, hluav taws xob tswj +800V OBC, DC / DC, PDU + 800V cua txias, PTC.
Qhov zoo: Kev hloov pauv hluav taws xob siab, piv txwv li, lub zog hloov pauv ntawm lub zog tsav hluav taws xob yog 90%, lub zog hloov pauv ntawm DC / DC yog 92%, yog tias tag nrho lub cev muaj hluav taws xob siab, nws tsis tas yuav ua rau muaj kev ntxhov siab los ntawm DC / DC, qhov system zog hloov pauv yog 90% × 92% = 82.8%.
Tsis muaj zog: Cov qauv tsim tsis tsuas yog muaj cov kev xav tau siab ntawm lub roj teeb, kev tswj hluav taws xob, OBC, DC / DC fais fab khoom siv yuav tsum tau hloov los ntawm Si-based IGBT SiC MOSFET, lub cev muaj zog, compressor, PTC, thiab lwm yam. , lub sij hawm luv luv lub tsheb kawg tus nqi nce yog siab dua, tab sis nyob rau hauv lub sij hawm ntev, tom qab kev lag luam saw yog mature thiab cov nyhuv scale muaj.Lub ntim ntawm qee qhov yog txo, lub zog ua haujlwm tau zoo dua, thiab tus nqi ntawm lub tsheb yuav poob.
(2) Ib feem ntawmhigh voltage, uas yog, 800V roj teeb + 400V lub cev muaj zog, hluav taws xob tswj + 400V OBC, DC / DC, PDU + 400V cua txias, PTC.
Qhov zoo: qhov yooj yim siv cov qauv uas twb muaj lawm, tsuas yog hloov kho lub hwj chim roj teeb, tus nqi ntawm lub tsheb kawg transformation yog me me, thiab muaj ntau dua practicality nyob rau hauv lub sij hawm luv luv.
Qhov tsis zoo: DC / DC kauj ruam-down yog siv nyob rau hauv ntau qhov chaw, thiab lub zog poob yog loj.
(3) Txhua qhov hluav taws xob tsis tshua muaj hluav taws xob, uas yog, 400V roj teeb (them 800V hauv series, tso tawm 400V nyob rau hauv parallel) +400V lub cev muaj zog, hluav taws xob tswj +400V OBC, DC / DC, PDU + 400V cua txias, PTC.
Qhov zoo: Lub tsheb kawg hloov pauv me me, lub roj teeb tsuas yog yuav tsum tau hloov pauv BMS.
Disadvantages: series nce, roj teeb nqi nce, siv cov thawj hwj chim roj teeb, kev txhim kho ntawm kev them nqi yog txwv.
Post lub sij hawm: Sep-18-2023