Imodyuli yokutshaja ye-DC EV esebenza kakuhle kakhulu ye-40kW SiC

Imodyuli yokutshaja esebenza kakuhle kakhulu yeSiC inokwenzeka kakhulu njengoko imfuno yokutshaja ngokukhawuleza kwe-voltage ephezulu isanda Emva kokuba iPorsche ibonise imodeli yeqonga le-800V high-voltage iTaycan ngoSeptemba ka-2019, iinkampani ezinkulu ze-EV zikhuphe iimodeli ze-800V high-voltage fast-charging, ezifana neHyundai IONIQ, iLotus Eletre, iBYD Dolphin, iAudi RS e-tron GT, njl. Zonke zihanjiswa okanye zinemveliso eninzi kule minyaka mibini. Ukutshaja kwe-800V fast kuya kuba yinto ephambili kwimarike; I-CITIC Securities iqikelela ukuba ngo-2025, inani leemodeli zokutshaja ngokukhawuleza ezinombane ophezulu liza kufikelela kwi-5.18 yezigidi, kwaye izinga lokungena liza kunyuka ukusuka kwi-10% ukuya kwi-34% yangoku. Oku kuza kuba sisiseko esiphambili sokukhula kwemarike yokutshaja ngokukhawuleza enombane ophezulu, kwaye iinkampani ezikwinqanaba eliphezulu kulindeleke ukuba zizuze ngokuthe ngqo kuyo. Ngokwengxelo kawonke-wonke, imodyuli yokutshaja yeyona nto iphambili kwinqwaba yokutshaja, imalunga nama-50% eendleko zizonke zenqwaba yokutshaja; phakathi kwazo, isixhobo samandla se-semiconductor simalunga nama-30% eendleko zemodyuli yokutshaja, oko kukuthi, imodyuli yamandla ye-semiconductor imalunga ne-15% yeendleko zenqwaba yokutshaja, iya kuba luluhlu oluphambili lwabaxhamli kwinkqubo yophuhliso lwemarike yeenqwaba zokutshaja. Okwangoku, izixhobo zamandla ezisetyenziswa kwiipali zokutshaja ikakhulu zii-IGBTs kunye neeMOSFET, zombini eziziimveliso ezisekelwe kwi-Si, kwaye uphuhliso lweepali zokutshaja ukuya kwi-DC fast charging luye lwabeka phambili iimfuno eziphezulu zezixhobo zamandla. Ukuze ukutshaja imoto kukhawuleze njengokuzalisa ipetroli kwisikhululo sepetroli, abenzi beemoto bafuna ngenkuthalo izixhobo ezinokuphucula ukusebenza kakuhle, kwaye i-silicon carbide ngoku yeyona ikhokelayo. I-silicon carbide ineengenelo zokuxhathisa amaqondo obushushu aphezulu, ukumelana noxinzelelo oluphezulu, amandla aphezulu, njl.njl., ezinokuphucula ukusebenza kakuhle kokuguqulwa kwamandla kunye nokunciphisa umthamo wemveliso. Uninzi lweemoto zombane zisebenzisa iindlela zokutshaja ze-AC ezikwibhodi, ekufuneka zithathe iiyure ezininzi ukuze zitshaje ngokupheleleyo. Ukusebenzisa amandla aphezulu (afana ne-30kW nangaphezulu) ukuze kukhawuleziswe ukutshaja kwezithuthi zombane kuye kwaba yindlela elandelayo ebalulekileyo yokubeka iipali zokutshaja. Nangona kukho iingenelo ngee-high-power charging piles, ikwazisa nemingeni emininzi, efana: nesidingo sokufezekisa imisebenzi yokutshintsha i-high-power high-frequency, kunye nobushushu obuveliswa kukulahlekelwa kokuguqulwa. Nangona kunjalo, iimveliso ze-SiC MOSFET kunye ne-diode zineempawu zokumelana ne-voltage ephezulu, ukumelana nobushushu obuphezulu, kunye ne-fast switching frequency, ezingasetyenziswa kakuhle kwiimodyuli ze-charging piles. Xa kuthelekiswa nezixhobo zemveli ezisekelwe kwi-silicon, iimodyuli ze-silicon carbide zinokunyusa amandla okukhupha ii-charging piles phantse nge-30%, kwaye zinciphise ilahleko ukuya kuthi ga kwi-50%. Kwangaxeshanye, izixhobo ze-silicon carbide nazo zinokuphucula uzinzo lwee-charging piles. Kwiinqwaba zokutshaja, iindleko ziseyenye yezinto ezibalulekileyo ezithintela uphuhliso, ngoko ke uxinano lwamandla kwiinqwaba zokutshaja lubaluleke kakhulu, kwaye izixhobo zeSiC zibalulekile ekufezekiseni uxinano lwamandla aphezulu. Njengesixhobo esine-voltage ephezulu, isantya esiphezulu, kunye nombane ophezulu, izixhobo ze-silicon carbide zenza lula ulwakhiwo lwesekethe yemodyuli yokutshaja ye-DC pile, zonyusa inqanaba lamandla eyunithi, kwaye zonyusa kakhulu uxinano lwamandla, nto leyo evula indlela yokunciphisa iindleko zenkqubo yenqwaba yokutshaja. Ngokwembono yeendleko zexesha elide kunye nokusebenza kakuhle, iinqwaba zokutshaja ezinamandla aphezulu ezisebenzisa izixhobo zeSiC ziya kuzisa amathuba amakhulu emarike. Ngokwedatha yeCITIC Securities, okwangoku, izinga lokungena kwezixhobo ze-silicon carbide kwiinqwaba zokutshaja zezithuthi zamandla amatsha limalunga ne-10% kuphela, nto leyo ekwashiya indawo ebanzi yeenqwaba zokutshaja ezinamandla aphezulu. Njengomthengisi okhokelayo kushishino lokutshaja lwe-DC, i-MIDA Power iphuhlise kwaye yakhupha imveliso yemodyuli yokutshaja enobunzima obukhulu, imodyuli yokuqala yokutshaja yenqanaba lokhuseleko lwe-IP65 enetekhnoloji ye-air duct ezimeleyo. Ngeqela eliqinileyo le-R&D kunye nomgaqo ojolise kwimarike, i-MIDA Power izinikele kakhulu kwaye yaphuhlisa ngempumelelo imodyuli yokutshaja ye-40kW SiC esebenza kakuhle kakhulu. Ngobuchule obumangalisayo obungaphezulu kwe-97% kunye nobubanzi obukhulu bokufaka ivolthi ukusuka kwi-150VDC ukuya kwi-1000VDC, imodyuli yokutshaja ye-40kW SiC ihlangabezana phantse nayo yonke imigangatho yokufaka ehlabathini ngelixa igcina amandla kakhulu. Ngokukhula ngokukhawuleza kwenani leenqwaba zokutshaja, kukholelwa ukuba ii-SiC MOSFET, kunye nemodyuli yokutshaja ye-MIDA Power 40kW SiC ziya kusetyenziswa rhoqo kwiinqwaba zokutshaja ezifuna ubunzima obukhulu bamandla kwixesha elizayo.