Yuav ua li cas saib cov peev xwm hloov pauv ntawm silicon carbide diodes hauv kev lag luam hluav taws xob tshiab?

1, Kev ua kom zoo dua: Ua txhaum lub cev txwv ntawm silicon- raws li cov khoom siv
Cov kev sib tw tseem ceeb ntawm silicon carbide diodes nyob hauv lawv cov khoom siv:

Cov yam ntxwv siab thiab kev ua haujlwm siab: Lub tshuab hluav taws xob ntawm silicon carbide yog peb npaug ntawm silicon, thiab bandgap dav yog peb npaug ntawm silicon, uas ua rau nws rov qab lub sijhawm luv luv (<10ns) and reduces switching losses by more than 70%. In the motor controller of new energy vehicles, the use of silicon carbide diodes can improve system efficiency by 3% -5% and increase range by 5% -10%.
Kev kub siab ua haujlwm thiab kev ntseeg siab: Lub zog tseem ceeb ntawm silicon carbide yog 10 npaug ntawm silicon, thiab nws tuaj yeem ua haujlwm ruaj khov hauv qhov kub thiab txias tshaj 600 degree. Nws cov thermal conductivity yog 3 npaug ntawm silicon, thiab nws cov thermal dissipation efficiency yog ho txhim kho. Nyob rau hauv photovoltaic inverters, silicon carbide diodes tuaj yeem txo qhov ntim ntawm cov cua kub dissipation modules los ntawm 40% thiab txuas rau lub neej ntev mus txog 20 xyoo.
Miniaturization thiab lightweighting: High breakdown field lub zog tso cai rau cov cuab yeej tsim kom nyias, thiab nyob rau hauv tib lub zog, lub ntim ntawm silicon carbide diodes tsuas yog ib tug -thib peb ntawm silicon- raws li cov khoom siv, txo qhov hnyav los ntawm 60%. Qhov no feature yog tshwj xeeb tshaj yog ib qho tseem ceeb nyob rau hauv hluav taws xob tsav system ntawm lub zog tshiab tsheb, raws li nws muaj peev xwm tso tau ntau qhov chaw rau roj teeb layout.
2, Daim ntawv thov scenarios thiab lwm cov laj thawj hauv kev lag luam hluav taws xob tshiab
Lub zog tshiab tsheb: dhia los ntawm pab pawg mus rau cov tub ntxhais
Lub tsheb charger (OBC): Silicon carbide diodes ua tiav qhov kev hloov pauv ntawm 99% ntawm 800V high voltage platform, uas yog 5 feem pua ​​​​cov ntsiab lus siab dua silicon- cov khoom siv raws li, thiab cov nqi them ceev tau nce 30%. Tesla Model 3, BYD Han thiab lwm yam qauv tau txais cov khoom siv hluav taws xob silicon carbide hauv ntau.
Lub cev muaj zog maub los: lub inverter tsim los ntawm silicon carbide diodes thiab MOSFETs, uas tuaj yeem ua rau lub cev muaj zog ntau dua 20000rpm thiab ua tiav lub zog ceev ntawm ntau dua 50kW / L. Lub tshuab hluav taws xob silicon carbide nruab rau ntawm NIO ET7 txo qis kev siv zog ntawm 6%.
Cov pawg them nyiaj: Silicon carbide diodes ua tiav 98% lub zog hloov pauv hauv DC ceev them pawg, txhawb nqa 480kW overcharging zog, thiab txo lub sijhawm them tsawg dua 10 feeb. Lub Xeev Grid tau tshaj tawm qhov kev sim rau kev ua qauv ntawm silicon carbide charging pawg.
Kev tsim hluav taws xob photovoltaic: kev hloov pauv kev ua haujlwm ntawm qhov nruab nrab mus rau kev faib tawm
Txoj hlua inverter: Silicon carbide diodes pab kom qhov siab tshaj plaws kev hloov pauv ntawm lub inverter kom siab tshaj 99%, thiab nws tseem tuaj yeem tswj tau qhov ua tau zoo ntawm ntau dua 98.5% nyob rau hauv qhov kub thiab txias ib puag ncig xws li suab puam thiab toj siab. Huawei, Sunac thiab lwm lub tuam txhab tau tshaj tawm cov khoom lag luam silicon carbide photovoltaic inverter.
Micro inverter: Cov yam ntxwv miniaturization ntawm silicon carbide diodes tau nce lub zog ceev ntawm micro inverters mus rau 1kW / L, txo tus nqi ntawm ib qho modules los ntawm 40%, thiab txhawb kev tawg ntawm BIPV kev ua lag luam.
Energy Storage System: Txhim kho los ntawm Kev Hloov Hluav Taws Xob mus rau Kev Tswj Xyuas Kev Txawj Ntse
Roj Teeb Tswj Xyuas Txheej Txheem (BMS): Silicon carbide diodes ua tiav 99.5% lub zog hloov pauv kev ua haujlwm nyob rau hauv bidirectional DC -DC converters, txo cov roj teeb them thiab tso tawm los ntawm 15% thiab txuas lub neej voj voog los ntawm 20%. Cov tuam txhab xws li CATL thiab BYD tau siv nws rau lub zog cia chaw nres tsheb.
Daim phiaj sab zog cia: Silicon carbide diodes txhawb MW qib hluav taws xob tso zis hauv 1500V siab -voltage zog cia tshuab, thiab cov lus teb ceev tau txhim kho mus rau qib millisecond, muab kev txhawb nqa tseem ceeb rau kev sib txuas hluav taws xob txuas ntxiv.
3, Cov qauv kev ua lag luam: Kev hloov pauv hauv tsev nrawm dua thiab kev poob qis hauv cov nqi
Ntiaj teb no kev sib tw toj roob hauv pes
Cov tuam txhab loj thoob ntiaj teb xws li Wolfspeed, Infineon, thiab Rohm ua tus thawj tswj hwm qib siab -kawg lag luam, nrog rau kev lag luam thoob ntiaj teb ntawm 65% rau cov khoom siv hluav taws xob silicon carbide los ntawm 2024, tab sis cov tuam txhab hauv Suav teb tau nce sai. Tianyue Advanced, Tianke Heda thiab lwm lub tuam txhab tau ua tiav cov khoom loj ntawm 6-nti substrates, thiab 8-nti substrates tau nkag mus rau cov neeg siv khoom pov thawj theem.
Hauv xyoo 2024, kev lag luam loj ntawm silicon carbide diodes hauv Suav teb yuav ncav cuag 2.8 billion yuan, ib xyoos - ntawm - xyoo nce ntawm 55%, ntawm cov khoom lag luam tsheb muaj ntau dua 60%. Nws cia siab tias los ntawm 2030, lub ntiaj teb ua lag luam feem ntawm Suav silicon carbide diodes yuav nce mus rau 35%.
Kev txo nqi tsav tsheb hloov
Tus nqi ntawm cov substrate tau txo los ntawm 70% hauv 2020 mus rau 45% hauv 2025, thiab tus nqi ntawm 6-inch silicon carbide substrates tau nqis los ntawm 5000 yuan / thooj rau 2000 yuan / thooj, ze li peb npaug ntawm cov khoom siv silicon. Nrog rau qhov loj ntawm 8-nti substrates, cov nqi yuav tsum tau txo qis ntxiv.
Domestic silicon carbide diodes raug nqi 30% -50% qis dua cov khoom lag luam txawv teb chaws, thiab tau tsim kev hloov pauv kom zoo dua hauv cov nqi rhiab xws li tsheb tshiab thiab photovoltaics. Piv txwv li, lub domestically tsim silicon carbide module siv nyob rau hauv BYD Han EV txuag 12000 yuan ib lub tsheb piv rau cov khoom txawv teb chaws.