Imojuli yokushaja ye-DC EV esebenza kahle kakhulu engu-40kW SiC

Imojula yokushaja esebenza kahle kakhulu ye-SiC inamandla amakhulu njengoba isidingo sokushaja okusheshayo kwe-voltage ephezulu sikhula kakhulu Ngemuva kokwethulwa kokuqala kwePorsche emhlabeni wonke kwemodeli yesikhulumi se-800V high-voltage Taycan ngoSepthemba 2019, izinkampani ezinkulu ze-EV zikhiphe amamodeli okushaja okusheshayo kwe-800V high-voltage, njengeHyundai IONIQ, iLotus Eletre, iBYD Dolphin, i-Audi RS e-tron GT, njll. Zonke zilethwa noma zikhiqizwa ngobuningi kule minyaka emibili. Ukushaja okusheshayo kwe-800V kuba yinto evame kakhulu emakethe; I-CITIC Securities ibikezela ukuthi ngo-2025, inani lamamodeli okushaja okusheshayo ane-voltage ephezulu lizofinyelela ku-5.18 million, kanti izinga lokungena lizokhuphuka lisuka ku-10% liye ku-34%. Lokhu kuzoba yimbangela eyinhloko yokukhula kwemakethe yokushaja okusheshayo ene-voltage ephezulu, futhi izinkampani ezikhuphukayo kulindeleke ukuthi zizuze ngqo kukho. Ngokusho kolwazi lomphakathi, imodyuli yokushaja iyisici esiyinhloko senqwaba yokushaja, ebiza cishe u-50% wezindleko eziphelele zenqwaba yokushaja; phakathi kwazo, idivayisi yamandla e-semiconductor ibiza u-30% wezindleko zemodyuli yokushaja, okungukuthi, imodyuli yamandla e-semiconductor ibiza cishe u-15% wezindleko zenqwaba yokushaja, izoba yiketanga eliyinhloko labazuzi enqubweni yokuthuthukiswa kwemakethe yenqwaba yokushaja. Njengamanje, amadivayisi kagesi asetshenziswa ekushajeni ama-IGBT kanye nama-MOSFET, womabili ayimikhiqizo esekelwe ku-Si, futhi ukuthuthukiswa kwama-pile okushaja kuya ekushajeni okusheshayo kwe-DC kubeke phambili izidingo eziphakeme zamadivayisi kagesi. Ukuze ukushaja imoto kusheshe njengokugcwalisa uphethiloli esiteshini sikaphethiloli, abenzi bezimoto bafuna ngenkuthalo izinto ezingathuthukisa ukusebenza kahle, kanti i-silicon carbide njengamanje ihamba phambili. I-Silicon carbide inezinzuzo zokumelana nokushisa okuphezulu, ukumelana nokucindezela okuphezulu, amandla aphezulu, njll., okungathuthukisa ukusebenza kahle kokuguqulwa kwamandla futhi kunciphise ivolumu yomkhiqizo. Izimoto eziningi zikagesi zisebenzisa izinhlelo zokushaja ze-AC ezisebhodini, okumele zithathe amahora amaningana ukushaja ngokugcwele. Ukusebenzisa amandla aphezulu (njengama-30kW nangaphezulu) ukuze kutholakale ukushaja okusheshayo kwezimoto zikagesi sekuyindlela elandelayo ebalulekile yokwakheka kwezinqwaba zokushaja. Naphezu kwezinzuzo ngama-piles okushaja anamandla aphezulu, futhi kuletha izinselele eziningi, njengesidingo sokuqaphela imisebenzi yokushintsha imvamisa ephezulu enamandla aphezulu, kanye nokushisa okubangelwa ukulahlekelwa ukuguqulwa. Kodwa-ke, imikhiqizo ye-SiC MOSFET kanye ne-diode inezici zokumelana ne-voltage ephezulu, ukumelana nokushisa okuphezulu, kanye nemvamisa yokushintsha okusheshayo, engasetshenziswa kahle kumamojula e-pile okushaja. Uma kuqhathaniswa namadivayisi endabuko asekelwe ku-silicon, amamojula e-silicon carbide angakhuphula amandla okukhipha ama-pile okushaja cishe ngo-30%, futhi anciphise ukulahlekelwa ngamaphesenti angama-50. Ngesikhathi esifanayo, amadivayisi e-silicon carbide angathuthukisa nokuzinza kwama-pile okushaja. Kuma-pile okushaja, izindleko zisesengenye yezinto ezibalulekile ezivimbela intuthuko, ngakho-ke ubuningi bamandla ama-pile okushaja bubaluleke kakhulu, futhi amadivayisi e-SiC ayisihluthulelo sokufinyelela ubuningi bamandla aphezulu. Njengedivayisi ene-voltage ephezulu, isivinini esikhulu, kanye nogesi ophezulu, amadivayisi e-silicon carbide enza kube lula ukwakheka kwesekethe ye-module yokushaja i-pile ye-DC, andise izinga lamandla eyunithi, futhi andise kakhulu ubuningi bamandla, okuvula indlela yokunciphisa izindleko zesistimu ye-pile yokushaja. Ngokombono wezindleko zesikhathi eside kanye nokusebenza kahle kokusetshenziswa, izinqwaba zokushaja ezinamandla amakhulu ezisebenzisa amadivayisi e-SiC zizoletha amathuba amakhulu emakethe. Ngokusho kwedatha ye-CITIC Securities, okwamanje, izinga lokungena kwamadivayisi e-silicon carbide ezinqwabeni zokushaja izimoto ezintsha licishe libe yi-10% kuphela, okushiya isikhala esikhulu sezinqwabeni zokushaja ezinamandla aphezulu. Njengomhlinzeki ohamba phambili embonini yokushaja ye-DC, i-MIDA Power ithuthukise futhi yakhipha umkhiqizo wemodyuli yokushaja enamandla amakhulu kakhulu, imodyuli yokuqala yokushaja yezinga lokuvikela le-IP65 enobuchwepheshe be-air duct obuzimele. Ngeqembu eliqinile le-R&D kanye nomgomo ogxile emakethe, i-MIDA Power izinikele kakhulu futhi yathuthukisa ngempumelelo imodyuli yokushaja esebenza kahle kakhulu ye-40kW SiC. Ngokusebenza kahle okuphezulu okumangalisayo okungaphezu kwama-97% kanye ne-voltage yokufaka ebanzi kakhulu kusukela ku-150VDC kuya ku-1000VDC, imodyuli yokushaja ye-40kW SiC ihlangabezana cishe nazo zonke izindinganiso zokufaka emhlabeni ngenkathi igcina amandla kakhulu. Ngokukhula okusheshayo kwenani lama-pile okushaja, kukholelwa ukuthi ama-SiC MOSFET, kanye nemodyuli yokushaja ye-MIDA Power 40kW SiC kuzosetshenziswa kaningi ekushajeni inqwaba edinga amandla amaningi esikhathini esizayo.