Imodyuli yokuTshaja eyi-40kW SiC ephezulu ye-DC EV

Imodyuli ephezulu yokutshaja ye-SiC inokubakho kakhulu njengoko imfuno yokutshaja ombane aphezulu isanda Ukulandela i-premiere yehlabathi ye-Porsche ye-800V ye-high-voltage imodeli yeqonga le-Taycan ngoSeptemba ka-2019, iinkampani ezinkulu ze-EV zikhuphe iimodeli zokutshaja ezikhawulezayo ze-800V, njengeHyundai IONIQ, Lotus Eletre, BYD Dolphin, Audi RS e-tron GT, njl. Ukutshaja ngokukhawuleza kwe-800V kuba yeyona nto iphambili kwimarike; I-CITIC Securities iqikelela ukuba ngo-2025, inani leemodeli zokutshaja ngokukhawuleza kwe-voltage ngokukhawuleza liya kufikelela kwi-5.18 yezigidi, kwaye izinga lokungena liza kwanda ukusuka ngoku kancinci kwi-10% ukuya kwi-34%. Oku kuya kuba yeyona nto iqhubayo ekukhuleni kwemarike yokutshaja ngokukhawuleza kwevoltage, kwaye iinkampani ezinyukayo kulindeleke ukuba zixhamle kuyo. Ngokolwazi loluntu, imodyuli yokuhlawula iyona nxalenye ephambili yemfumba yokutshaja, ibalwa malunga ne-50% yeendleko ezipheleleyo zokuhlawula; phakathi kwabo, i-akhawunti yesixhobo samandla semiconductor ye-30% yeendleko zemodyuli yokutshaja, oko kukuthi, i-akhawunti yemodyuli yamandla e-semiconductor malunga ne-15% yeendleko zemfumba yokuhlawula, iya kuba ngumxhamli oyintloko kwinkqubo yophuhliso lwemarike yemfumba yokutshaja. Okwangoku, izixhobo zombane ezisetyenziselwa ukutshaja iimfumba ubukhulu becala zii-IGBT kunye nee-MOSFET, zombini ezi zimveliso ezisekwe kwi-Si, kunye nophuhliso lweemfumba zokutshaja kwi-DC ngokukhawuleza zibeke iimfuno eziphezulu zezixhobo zamandla. Ukuze wenze ukutshaja kweemoto ngokukhawuleza njengokugcwalisa kwisikhululo segesi, ii-automakers zifuna ngenkuthalo izinto ezinokuphucula ukusebenza kakuhle, kwaye i-silicon carbide ngoku iyinkokeli. I-silicon carbide ineenzuzo zokumelana nokushisa okuphezulu, ukuxhathisa uxinzelelo oluphezulu, amandla aphezulu, njl., Enokuphucula ukuguqulwa kwamandla kunye nokunciphisa umthamo wemveliso. Uninzi lwezithuthi zombane zisebenzisa izikimu zokutshaja ze-AC, ekufuneka kuthathe iiyure ezininzi ukutshaja ngokupheleleyo. Ukusebenzisa amandla aphezulu (afana nama-30kW nangaphezulu) ukuqonda ukutshajiswa okukhawulezileyo kwezithuthi zombane kuye kwaba lelona cala lilandelayo loyilo lokutshaja iimfumba. Ngaphandle kweenzuzo ngeemfumba zokutshaja zamandla aphezulu, kuzisa nemingeni emininzi, njengale: imfuno yokuqonda ukusebenza kokutshintsha kwamandla aphezulu, kunye nobushushu obuveliswa yilahleko yokuguqulwa. Nangona kunjalo, i-SiC MOSFET kunye neemveliso ze-diode zineempawu zokuxhathisa amandla ombane aphezulu, ukuxhathisa ubushushu obuphezulu, kunye nokutshintsha ngokukhawuleza okuphindaphindiweyo, okunokuthi kusetyenziswe kakuhle ukutshaja iimodyuli zemfumba. Xa kuthelekiswa nezixhobo zemveli ezisekelwe kwi-silicon, iimodyuli ze-silicon carbide zinokunyusa amandla emveliso yeemfumba zokutshaja phantse ngama-30%, kwaye zinciphise ilahleko nge-50%. Kwangaxeshanye, izixhobo ze-silicon carbide zinokuphucula ukuzinza kweemfumba zokutshaja. Ukutshaja iimfumba, iindleko zisengomnye wemiba ebalulekileyo ethintela uphuhliso, ngoko ke ukuxinana kwamandla eemfumba zokutshaja kubaluleke kakhulu, kwaye izixhobo ze-SiC zingundoqo ekuphumezeni ukuxinana kwamandla aphezulu. Njengesixhobo se-voltage ephezulu, i-high-speed, kunye ne-high-current, izixhobo ze-silicon carbide zenza lula ulwakhiwo lwesekethe yemodyuli yokutshaja imfumba ye-DC, yandise inqanaba lamandla eyunithi, kwaye yandise kakhulu ingxinano yamandla, evula indlela yokunciphisa iindleko zenkqubo yemfumba yokutshaja. Ngokwembono yeendleko zexesha elide kunye nokusetyenziswa ngokufanelekileyo, iimfumba zokutshaja zamandla aphezulu zisebenzisa izixhobo ze-SiC ziya kuzisa amathuba amakhulu emarike. Ngokutsho kwedatha ye-CITIC Securities, okwangoku, izinga lokungena kwezixhobo ze-silicon carbide kwiimfumba zokutshaja iimoto zamandla zimalunga ne-10% kuphela, ekwashiya indawo ebanzi yeemfumba zokutshaja amandla aphezulu. Njengomthengisi ohamba phambili kwishishini lokutshaja kwe-DC, i-MIDA Power iphuhlise kwaye yakhulula imveliso yemodyuli yokutshaja enoxinano lwamandla aphezulu, imodyuli yokuqala ye-IP65 yokhuseleko lwenqanaba lokutshaja kunye nobuchwepheshe obuzimeleyo be-air duct. Ngeqela elomeleleyo le-R&D kunye nomgaqo-siseko ojolise kwimarike, Amandla e-MIDA anikele umzamo omkhulu kwaye aphuhlise ngempumelelo imodyuli yokutshaja eyi-40kW SiC esebenza ngokufanelekileyo. Ngobuchule obuchukumisayo obuphezulu obungaphezulu kwe-97% kunye noluhlu lwamandla ombane olubanzi kakhulu ukusuka kwi-150VDC ukuya kwi-1000VDC, imodyuli yokutshaja yeSiC eyi-40kW idibana phantse nayo yonke imigangatho yokufaka ehlabathini ngelixa igcina amandla ngokumangalisayo. Ngokukhula okukhawulezayo kwenani leemfumba zokutshaja, kukholelwa ukuba ii-SiC MOSFETs, kunye nemodyuli yokutshaja ye-MIDA Power 40kW SiC iya kusetyenziswa rhoqo kwimfumba yokutshaja efuna ukuxinana kwamandla aphezulu kwixesha elizayo.