I-Biden-Harris Administration Ifayela Umjikelezo Wokuqala Wohlelo Lwengqalasizinda Yokushaja Imoto Kagesi ka-$2.5 Billion
Rekhoda iqhwa e-Utah - ezinye izigigaba zasebusika ku-Tesla Model 3 yenjini yami engamawele (+ isibuyekezo se-beta ye-FSD)
Rekhoda iqhwa e-Utah - ezinye izigigaba zasebusika ku-Tesla Model 3 yenjini yami engamawele (+ isibuyekezo se-beta ye-FSD)
Ubuchwepheshe obusha bokushaja okungenantambo obuvela eNyuvesi yase-Chalmers bunganikeza amandla afinyelela kwangu-500kW ngokulahleka okungaphansi kuka-2%.
Abacwaningi baseNyuvesi yaseChalmers eSweden bathi sebesungule ubuchwepheshe bokushaja okungenantambo obukwazi ukushaja amabhethri afinyelela ku-500 kilowatts ngaphandle kokuwaxhuma eshaja enezintambo. Bathi imishini emisha yokushaja isiphelile futhi isilungele ukukhiqizwa kochungechunge. Lobu buchwepheshe ngeke ngempela busetshenziselwe ukushaja izimoto zabagibeli, kodwa bungasetshenziswa ezikebheni zikagesi, amabhasi, noma ezimotweni ezingenamuntu ezisetshenziswa ezimayini noma kwezolimo ukushaja ngaphandle kokusebenzisa ingalo yerobhothi noma ukuxhuma kumthombo wamandla.
U-Yujing Liu, uProfesa Wezobunjiniyela Bogesi eMnyangweni Wezobunjiniyela Bakagesi eNyuvesi yaseChalmers, ugxile ekuguquleni amandla avuselelekayo kanye nokufakwa kukagesi kwezinhlelo zokuthutha. “I-marina ingaba nohlelo olwakhelwe ukushaja isikebhe ezitobhini ezithile lapho abagibeli behla futhi behla emkhunjini. Okuzenzakalelayo futhi okuzimele ngokuphelele esimweni sezulu nomoya, isistimu ingakhokhiswa izikhathi ezingama-30 kuya kwezingama-40 ngosuku. Amaloli kagesi adinga ukushajwa kwamandla aphezulu. izintambo zokushaja zingaba wugqinsi kakhulu futhi zibe nzima futhi kube nzima ukuzibamba.”
U-Liu uthe ukuthuthuka okusheshayo kwezingxenye ezithile nezinto zokwakha eminyakeni yamuva kuye kwavula umnyango wamathuba amasha okushaja. “Isici esibalulekile ukuthi manje sesiyakwazi ukufinyelela kuma-semiconductors e-silicon carbide anamandla amakhulu, lokho okubizwa nge-SiC components. Ngokwamandla kagesi, sekuyiminyaka embalwa kuphela besemakethe. Zisivumela ukuthi sisebenzise ama-voltage aphezulu kakhulu, amazinga okushisa aphezulu kanye namaza okushintsha aphakeme,” kusho yena. Lokhu kubalulekile ngoba imvamisa yendawo kazibuthe ikhawulela amandla angadluliswa phakathi kwamakhoyili amabili osayizi othile.
“Izinhlelo zokushaja okungenantambo zangaphambilini zezimoto ezisebenzisa amaza azungeze u-20kHz, njengamahhavini ajwayelekile. Zaba ziningi futhi ukudluliswa kwamandla kwakungasebenzi kahle. Manje sisebenza kumafrikhwensi ngokuphindwe kane. Khona-ke i-induction ivele yakhanga,” kuchaza uLiu. Wengeze ngokuthi ithimba lakhe labacwaningi ligcina ubudlelwano obuseduze nabakhiqizi ababili abahamba phambili emhlabeni bamamojula e-SiC, eyodwa e-US nenye eJalimane.
"Ngabo, ukuthuthuka okusheshayo kwemikhiqizo kuzoqondiswa kuma-currents aphezulu, ama-voltage kanye nemiphumela. Njalo eminyakeni emibili noma emithathu, kuzokwethulwa izinguqulo ezintsha ezibekezelela kakhudlwana. Lezi zinhlobo zezingxenye ziyizinto ezibalulekile, kunezinhlobonhlobo zezinhlelo zokusebenza ezimotweni zikagesi, hhayi nje ukushaja okuguquguqukayo. ” “.
Okunye ukuphumelela kwakamuva kwezobuchwepheshe kufaka izintambo zethusi kumakhoyili ngokulandelanayo athumela futhi amukele inkambu kazibuthe enyakazayo eyenza ibhuloho elibonakalayo lokugeleza kwamandla phakathi kwegebe lomoya. Umgomo lapha ukusebenzisa imvamisa ephezulu kakhulu ngangokunokwenzeka. “Khona-ke ayisebenzi ngamakhoyili azungezwe ngocingo lwethusi oluvamile. Lokhu kudala ukulahleka okukhulu kakhulu ngamaza aphezulu, ”kusho uLiu.
Esikhundleni salokho, amakhoyili manje ahlanganisa “izintambo zethusi” ezilukiwe ezakhiwe ngemicu yethusi engu-10,000 enogqinsi lwama-microns angama-70 kuya kwangu-100 kuphela - acishe alingane nomucu wezinwele zomuntu. Okubizwa ngokuthi ama-litz wire braids, afanele ama-currents aphezulu nama-frequency aphezulu, nawo avele kamuva nje. Isibonelo sesithathu sobuchwepheshe obusha obuvumela ukushaja okungenantambo okunamandla uhlobo olusha lwe-capacitor olukhuphula amandla asebenzayo adingwa ikhoyili ukuze kwakhe indawo kazibuthe enamandla eyanele.
U-Liu ugcizelele ukuthi ukushaja izimoto zikagesi kudinga ukuguqulwa okuningi phakathi kwe-DC ne-AC, kanye naphakathi kwamazinga kagesi ahlukene. “Ngakho-ke uma sithi sizuze ukusebenza kahle kwamaphesenti angama-98 ukusuka ku-DC esiteshini sokushaja kuya ebhethrini, leyo nombolo cishe ayinandaba kangako ngaphandle kokuthi ucacelwe ukuthi ulinganisa ini. Kodwa ungasho okufanayo. , Akunandaba noma usebenzisa Ukulahlekelwa kwenzeka ngokushaja okujwayelekile noma ngokushaja okuguquguqukayo. Ukusebenza kahle esesikuzuzile manje kusho ukuthi ukulahlekelwa ekushajweni kwe-inductive kungase kucishe kube phansi njengasesimisweni sokushaja se-conductive. Umehluko mncane kakhulu kangangokuthi empeleni awunalutho, cishe iphesenti elilodwa noma amabili.”
Abafundi be-CleanTechnica bathanda imininingwane ethile, ngakho-ke nakhu esikwaziyo ku-Electrive. Ithimba labacwaningi baka-Chalmers lithi uhlelo lwayo lokushaja okungenantambo lusebenza kahle ngamaphesenti angama-98 futhi lukwazi ukuletha amandla afinyelela ku-500kW oqondile ngamamitha-skwele amabili anegebe lomoya elingu-15cm phakathi komhlaba kanye namaphedi asebhodini. Lokhu kuhambisana nokulahlekelwa ngu-10 kW kuphela noma u-2% wamandla amakhulu okushaja okucatshangelwayo.
U-Liu unethemba ngalobu buchwepheshe bokushaja okungenantambo. Isibonelo, akacabangi ukuthi izothatha indawo yendlela esikhokhisa ngayo izimoto zikagesi. “Ngizishayela mina ngemoto kagesi, futhi angicabangi ukuthi ukushaja i-inductive kuzokwenza umehluko esikhathini esizayo. Ngishayele ngiye ekhaya, ngiyixhume... akunankinga.” ezintanjeni. “Mhlawumbe akufanele kuphikiswe ukuthi ubuchwepheshe ngokwabo buyasimama. Kodwa kungenza kube lula ukufaka ugesi ezimotweni ezinkulu, okungasheshisa ukuqedwa kwezinto ezifana nezikebhe ezihamba ngodizili,” usho kanje.
Ukushaja imoto kuhluke kakhulu ekushajeni isikebhe, indiza, isitimela, noma isisetshenziswa sikawoyela. Izimoto eziningi zipake isikhathi esingu-95%. Imishini eminingi yebhizinisi isebenza njalo futhi ayikwazi ukulinda ukushajwa kabusha. U-Liu ubona izinzuzo zobuchwepheshe obusha bokushaja kulezi zimo zentengiso. Akekho ngempela odinga ukushaja imoto kagesi engu-500 kW egaraji.
Inhloso yalolu cwaningo akukhona ekushajweni okungenantambo ngakunye, kodwa endleleni ubuchwepheshe obuqhubeka ngayo nokwethula izindlela ezintsha, ezishibhile, nezisebenza kahle kakhulu zokwenza izinto ezingasheshisa uguquko lwezimoto zikagesi. Kucabange njengosuku oluhamba phambili lwe-PC, lapho umshini wakamuva nomkhulu kakhulu wawungasasebenzi ngaphambi kokuthi ubuye ekhaya usuka e-Circuit City. (Uyawakhumbula?) Namuhla, izimoto zikagesi zithola ukuqhuma okufanayo kokudala. Into enhle kangaka!
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Isikhathi sokuthumela: Mar-16-2023