40kW SiC yogwira ntchito bwino kwambiri ya DC EV Charging Module

SiC high efficiency charging module ndi yotheka kwambiri chifukwa kufunikira kwa charging yamagetsi okwera kwambiri kukuchulukirachulukira Pambuyo poti Porsche yawonetsa koyamba padziko lonse lapansi za 800V high-voltage platform model ya Taycan mu Seputembala 2019, makampani akuluakulu a EV atulutsa mitundu ya 800V high-voltage fast-charging, monga Hyundai IONIQ, Lotus Eletre, BYD Dolphin, Audi RS e-tron GT, ndi zina zotero. Zonsezi zimaperekedwa kapena zimapangidwa mochuluka m'zaka ziwirizi. Kuchaja mwachangu kwa 800V kukukhala kofala pamsika; CITIC Securities ikuneneratu kuti pofika chaka cha 2025, chiwerengero cha ma model a high-voltage fast charger chidzafika pa 5.18 miliyoni, ndipo kuchuluka kwa ma traffic kudzakwera kuchoka pa 10% mpaka 34%. Izi zidzakhala mphamvu yayikulu yoyendetsera kukula kwa msika wa high-voltage fast charger, ndipo makampani akutsogolo akuyembekezeka kupindula mwachindunji ndi izi. Malinga ndi chidziwitso cha anthu onse, gawo lochapira ndiye gawo lalikulu la mulu wochapira, lomwe limawerengera pafupifupi 50% ya mtengo wonse wa mulu wochapira; pakati pawo, chipangizo chamagetsi cha semiconductor chimawerengera 30% ya mtengo wa module wochapira, kutanthauza kuti, gawo lamagetsi la semiconductor limawerengera pafupifupi 15% ya mtengo wa mulu wochapira, ndipo lidzakhala unyolo waukulu wopindula pakupanga msika wa mulu wochapira. Pakadali pano, zida zamagetsi zomwe zimagwiritsidwa ntchito pochaja ma pile makamaka ndi ma IGBT ndi ma MOSFET, omwe onse ndi zinthu zochokera ku Si, ndipo kupanga ma pile ochaja mwachangu ku DC kwapereka zofunikira kwambiri pazida zamagetsi. Pofuna kuti chaji yamagalimoto ikhale yofulumira monga kudzaza mafuta pamalo osungira mafuta, opanga magalimoto akufunafuna mwachangu zinthu zomwe zingathandize kuyendetsa bwino ntchito, ndipo silicon carbide pakadali pano ndiye mtsogoleri. Silicon carbide ili ndi ubwino wokana kutentha kwambiri, kukana kuthamanga kwambiri, mphamvu zambiri, ndi zina zotero, zomwe zingathandize kusintha mphamvu ndikuchepetsa kuchuluka kwa zinthu. Magalimoto ambiri amagetsi amagwiritsa ntchito njira zochapira za AC zomwe zili m'galimoto, zomwe zimatenga maola angapo kuti zichapitsidwe mokwanira. Kugwiritsa ntchito mphamvu zambiri (monga 30kW ndi kupitirira apo) kuti magalimoto amagetsi adzazidwe mwachangu kwakhala njira yotsatira yofunika kwambiri yopangira ma charger. Ngakhale ubwino wa ma pile ochajira amphamvu kwambiri, umabweretsanso zovuta zambiri, monga: kufunikira kochita ntchito zosinthira ma frequency amphamvu kwambiri, komanso kutentha komwe kumapangidwa chifukwa cha kutayika kwa kusintha. Komabe, SiC MOSFET ndi zinthu za diode zili ndi mawonekedwe a kukana kwamagetsi okwera, kukana kutentha kwambiri, komanso kusinthasintha mwachangu, zomwe zingagwiritsidwe ntchito bwino pochajira ma pile. Poyerekeza ndi zida zachikhalidwe zochokera ku silicon, ma silicon carbide module amatha kuwonjezera mphamvu yotulutsa ma pile ochajira ndi pafupifupi 30%, ndikuchepetsa kutayika ndi 50%. Nthawi yomweyo, zida za silicon carbide zimathanso kulimbitsa kukhazikika kwa ma pile ochajira. Pa ma pile ochajira, mtengo wake ukadali chimodzi mwazinthu zofunika kwambiri zomwe zimalepheretsa chitukuko, kotero kuchuluka kwa mphamvu ya ma pile ochajira ndikofunikira kwambiri, ndipo zida za SiC ndizofunikira kwambiri kuti pakhale kuchuluka kwa mphamvu. Monga chipangizo chamagetsi amphamvu, liwiro lalikulu, komanso mphamvu yamagetsi yapamwamba, zida za silicon carbide zimafewetsa kapangidwe ka dera la DC pile charger module, zimawonjezera mphamvu ya unit, ndikuwonjezera kwambiri kuchuluka kwa mphamvu, zomwe zimapangitsa kuti pakhale njira yochepetsera mtengo wa dongosolo la pile yochajira. Poganizira za mtengo wa nthawi yayitali komanso kugwiritsa ntchito bwino, ma charger amphamvu kwambiri pogwiritsa ntchito zipangizo za SiC adzabweretsa mwayi waukulu pamsika. Malinga ndi deta ya CITIC Securities, pakadali pano, kuchuluka kwa zida za silicon carbide zomwe zimalowa m'milu yatsopano yochapira magalimoto ndi pafupifupi 10% yokha, zomwe zimasiyanso malo ambiri ochapira magalimoto amphamvu kwambiri. Monga kampani yotsogola mumakampani ochapira a DC, MIDA Power yapanga ndikutulutsa chinthu chochapira chokhala ndi mphamvu zambiri, gawo loyamba la IP65 loteteza mphamvu ndi ukadaulo wodziyimira pawokha wa ma duct a mpweya. Ndi gulu lamphamvu la R&D komanso mfundo yoyang'ana pamsika, MIDA Power yadzipereka kwambiri ndikupanga bwino gawo la 40kW SiC lochapira bwino kwambiri. Ndi mphamvu yodabwitsa yoposa 97% komanso mphamvu yolowera yochulukirapo kuyambira 150VDC mpaka 1000VDC, gawo la 40kW SiC lochapira limakwaniritsa miyezo yonse yolowera padziko lonse lapansi pomwe limasunga mphamvu kwambiri. Ndi kukula mwachangu kwa kuchuluka kwa ma pile ochapira, akukhulupirira kuti ma SiC MOSFET, ndi gawo la MIDA Power 40kW SiC lochapira lidzagwiritsidwa ntchito mobwerezabwereza mu pile yochapira yomwe imafunikira mphamvu zambiri mtsogolo.