Ngati kapangidwe ka magalimoto amagetsi kasinthidwa kufika pa 800V, miyezo ya zida zake zamagetsi apamwamba idzakwezedwa moyenera, ndipo inverter idzasinthidwanso kuchokera ku zida zachikhalidwe za IGBT kupita ku zida za SiC MOSFET. Mtengo wa inverter yokha ndi wachiwiri kwa zigawo za batri. Ngati mukweza kupita ku SiC, mtengo wake udzakwera kufika pamlingo wina.
Koma kwa opanga magetsi, kugwiritsa ntchito silicon carbide nthawi zambiri sikungoganizira mtengo wa zida zamagetsi zokha, komanso chofunika kwambiri, kusintha kwa mtengo wa galimoto yonse. Chifukwa chake, ndikofunikira kupeza bwino pakati pa ndalama zomwe SiC imasunga komanso mtengo wake wokwera.
Ponena za SiC, munthu woyamba kuyesa anali Tesla.
Mu 2018, Tesla inasintha ma module a IGBT ndi ma module a silicon carbide koyamba mu Model 3. Pa mulingo womwewo wa mphamvu, kukula kwa phukusi la ma module a silicon carbide kumakhala kochepa kwambiri kuposa kwa ma module a silicon, ndipo kutayika kwa switching kumachepetsedwa ndi 75%. Komanso, ngati kusinthidwa, kugwiritsa ntchito ma module a SiC m'malo mwa ma module a IGBT kumatha kuwonjezera magwiridwe antchito a makina ndi pafupifupi 5%.
Poganizira za mtengo, mtengo wosinthira unakwera ndi pafupifupi ma yuan 1,500. Komabe, chifukwa cha kusintha kwa magwiridwe antchito a galimoto, mphamvu ya batri yoyikidwa yachepa, zomwe zapangitsa kuti batri lisamawononge ndalama zambiri.
Izi zitha kuonedwa ngati njuga yaikulu kwa Tesla. Kuchuluka kwa msika wake kumawonjezera mtengo. Tesla idadaliranso njuga yayikuluyi kuti itenge ukadaulo ndi msika wa makina a batri a 400V.
Ponena za 800V, Porsche inatsogolera pakukonza galimoto yamasewera ya Taycan yokhala ndi magetsi okhaokha ndi makina a 800V mu 2019, zomwe zinayambitsa mpikisano wa zida zankhondo za kapangidwe ka magalimoto amagetsi a 800V okwera mphamvu.
Pali chinthu "chosayenera" pankhani yofufuza mtengo kuchokera ku Porsche. Kupatula apo, imayang'ana kwambiri momwe galimoto yapamwamba imagwirira ntchito komanso momwe mtundu wa galimotoyo umakhalira wapamwamba.
Koma pankhani ya chitukuko ndi kugwiritsa ntchito ukadaulo, iyi ndi pulojekiti yayikulu yomwe imakhudza thupi lonse. Mwachitsanzo, pansi pa 800V high-voltage charging, voltage ya batri pack iyenera kukwera kufika pa 800V, apo ayi idzawotchedwa chifukwa cha mphamvu yayikulu yochaja. Kuphatikiza apo, sikuti imangokhudza makina ochaja okha, komanso makina a batri, makina oyendetsera magetsi, zida zamagetsi ndi makina olumikizira mawaya, zomwe zimakhudza kuyambika, kuyendetsa, kugwiritsa ntchito mpweya wozizira kwa galimoto, ndi zina zotero.
Ngati mukufuna kudziwa zambiri za izi, chonde musazengereze kulankhulana nafe.
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Imelo:sale04@cngreenscience.com
Nthawi yotumizira: Marichi-19-2024
