Inqwaba yokushaja engu-800V “Izisekelo Zokushaja”
Lesi sihloko sikhuluma kakhulu ngezinye izidingo zokuqala ze-800Vizinqwaba zokushaja, okokuqala ake sibheke isimiso sokushaja: Uma iphuzu lokushaja lixhunywe ekugcineni kwemoto, inqwaba yokushaja izohlinzeka (1) amandla asekelayo e-DC aphansi-voltage ekugcineni kwemoto ukuze kusebenze i-BMS eyakhelwe ngaphakathi (uhlelo lokuphatha ibhethri) yemoto kagesi. Ngemva kokuvula, (2) xhuma ukuphela kwemoto ekugcineni kwenqwaba, shintshana ngamapharamitha okushaja ayisisekelo njengamandla okushaja aphezulu ekugcineni kwemoto kanye namandla okuphuma aphezulu ekugcineni kwenqwaba, ngemva kokuba izinhlangothi ezimbili zifaniswe kahle, i-BMS (uhlelo lokuphatha ibhethri) ekugcineni kwemoto izothumela ulwazi lokufunwa kwamandla ku-isiteshi sokushaja se-ev, kanyeinqwaba yokushaja imoto kagesiizolungisa i-voltage yayo yokuphuma kanye nogesi ngokwalolu lwazi, bese iqala ukushaja imoto ngokusemthethweni, okuyisimiso esiyisisekelo salokhu.uxhumano lokushaja, futhi kudingeka sijwayelane nakho kuqala.
Ukushaja okungu-800V: "ukukhulisa i-voltage noma i-current"
Ngokwethiyori, uma sifuna ukunikeza amandla okushaja ukuze sinciphise isikhathi sokushaja, ngokuvamile kunezindlela ezimbili: noma ukwandisa ibhethri noma ukwandisa i-voltage; Ngokusho kwe-W=Pt, uma amandla okushaja ephindwe kabili, isikhathi sokushaja sizoncishiswa ngokwemvelo; Ngokusho kwe-P=UI, uma i-voltage noma i-current iphindwe kabili, amandla okushaja angaphindwa kabili, okuye kwakhulunywa ngakho ngokuphindaphindiwe futhi kubhekwa njengokuhlakanipha okuvamile.
Uma ugesi umkhulu, kuzoba nezinkinga ezimbili, uma ugesi umkhulu, ikhebula elidinga ugesi lizokhula futhi libe likhulu, okuzokwandisa ububanzi bentambo kanye nesisindo, kwandise izindleko, futhi akulula ukuthi abasebenzi basebenze; Ngaphezu kwalokho, ngokusho kwe-Q=I²Rt, uma ugesi uphakeme, ukulahleka kwamandla kukhulu, futhi ukulahleka kubonakala ngesimo sokushisa, okwandisa nokucindezela kokuphathwa kokushisa, ngakho-ke akungabazeki ukuthi akunconywa ukwandisa amandla okushaja ngokukhulisa ugesi njalo, kungakhathaliseki ukuthi uyashaja noma uhlelo lokushayela emotweni.
Uma kuqhathaniswa nokushaja okusheshayo kwamanje aphezulu,ukushaja okusheshayo kwe-voltage ephezuluikhiqiza ukushisa okuncane kanye nokulahlekelwa okuncane, futhi izinkampani zezimoto ezivamile cishe zithathe indlela yokwandisa i-voltage, uma kwenzeka ukushaja okusheshayo kwe-voltage ephezulu, ngokwemfundiso isikhathi sokushaja singafinyezwa ngo-50%, kanti ukwanda kwe-voltage nakho kungandisa kalula amandla okushaja kusuka ku-120KW kuya ku-480KW.
Ukushaja okungu-800V: “Imiphumela yokushisa ehambisana ne-voltage kanye ne-current”
Kodwa kungakhathaliseki ukuthi kukhulisa i-voltage noma ukwandisa ugesi, okokuqala, ngokwanda kwamandla akho okushaja, ukushisa kwakho kuzovela, kodwa ukubonakaliswa kokushisa kokukhulisa ugesi nokwandisa ugesi kuhlukile. Kodwa-ke, owokuqala ungcono uma uqhathaniswa.
Ngenxa yokumelana okuphansi okuhlangatshezwana nakho kwamandla kagesi lapho edlula kumqhubi, indlela yokwandisa amandla kagesi inciphisa usayizi wekhebula odingekayo, futhi ukushisa okufanele kuqedwe kuncane, futhi ngenkathi amandla kagesi ekhuphuka, ukwanda kwendawo ethwala amandla kagesi kuholela kububanzi obukhulu bangaphandle kanye nesisindo sekhebula esikhulu, futhi ukushisa kuzokhula kancane kancane ngokwandiswa kwesikhathi sokushaja, okufihlwe kakhulu, okuyingozi enkulu ebhethri.
Ukushaja okungu-800V: “Ezinye izinselele ezisheshayo ngamaqoqo okushaja”
Ukushaja okusheshayo okungu-800V nakho kunezidingo ezahlukene ekugcineni kwenqwaba:
Uma ngokombono ongokoqobo, ngokwanda kwe-voltage, ubukhulu bomklamo wamadivayisi ahlobene buzokhuphuka, isibonelo, ngokwezinga lokungcola kwe-IEC60664 lingu-2 futhi ibanga leqembu lezinto zokufaka ugesi lingu-1, ibanga ledivayisi enamandla kagesi aphezulu kudingeka libe kusukela ku-2mm kuya ku-4mm, futhi izidingo ezifanayo zokumelana nokufaka ugesi nazo zizokhula, cishe ibanga lokuhamba kanye nezidingo zokufaka ugesi kudingeka ziphindwe kabili, okudinga ukwakhiwa kabusha ekwakhiweni uma kuqhathaniswa nomklamo wesistimu yamandla kagesi wangaphambilini, kufaka phakathi izixhumi, imigoqo yethusi, izixhumi, njll. Ngaphezu kwalokho, ukwanda kwe-voltage kuzophinde kuholele ezidingweni eziphakeme zokucisha i-arc, futhi kuyadingeka ukwandisa izidingo zamadivayisi athile njenge-fuse, amabhokisi okushintsha, izixhumi, njll., ezisebenza futhi ekwakhiweni kwemoto, okuzokhulunywa ngazo ezihlokweni ezilandelayo.
Uhlelo lokushaja olunamandla aphezulu lwe-800V ludinga ukwengeza uhlelo lokupholisa uketshezi olusebenzayo lwangaphandle njengoba kushiwo ngenhla, futhi ukupholisa komoya kwendabuko akukwazi ukuhlangabezana nezidingo kungakhathaliseki ukuthi ukupholisa okusebenzayo noma okungasebenzi, kanye nokuphathwa kokushisa kweisiteshi sokushaja imoto kagesiUmugqa wesibhamu oya ekugcineni kwemoto nawo uphakeme kunangaphambili, nokuthi unganciphisa futhi ulawule kanjani izinga lokushisa lale ngxenye yesistimu kusukela ezingeni ledivayisi kanye nezinga lesistimu yiphuzu okufanele lithuthukiswe futhi lixazululwe yinkampani ngayinye esikhathini esizayo; Ngaphezu kwalokho, le ngxenye yokushisa akuyona nje ukushisa okulethwa ukushaja ngokweqile, kodwa futhi ukushisa okulethwa amadivayisi wamandla avame kakhulu, ngakho-ke indlela yokwenza ukuqapha ngesikhathi sangempela kanye nokuzinzile, okusebenzayo nokuphephile ukususa ukushisa kubaluleke kakhulu, okungeyona nje intuthuko ezintweni, kodwa futhi nokutholwa okuhlelekile, njengokuqapha kwesikhathi sangempela kanye nokusebenza kahle kokushisa kokushaja.
Njengamanje, i-voltage yokukhipha yeIzinqwaba zokushaja ze-DCemakethe ngokuyisisekelo ingu-400V, engakwazi ukushaja ibhethri lamandla angu-800V ngqo, ngakho-ke umkhiqizo owengeziwe we-boost DCDC uyadingeka ukuphakamisa i-voltage engu-400V ibe ngu-800V, bese ushaja ibhethri, okudinga amandla aphezulu kanye nokushintsha kwemvamisa ephezulu, kanti i-module esebenzisa i-silicon carbide ukufaka esikhundleni se-IGBT yendabuko iyisinqumo esivamile samanje, yize amamojula e-Silicon carbide angakhuphula amandla okukhipha ama-piles okushaja futhi anciphise ukulahleka, kodwa izindleko nazo ziphakeme kakhulu, futhi izidingo ze-EMC nazo ziphakeme.
Ukufingqa. Ngokuyisisekelo, ukwanda kwamandla kagesi kuzodingeka kukhuliswe ezingeni lesistimu kanye nezinga ledivayisi, kufaka phakathi uhlelo lokuphatha ukushisa, uhlelo lokuvikela ukushaja, njll., futhi izinga ledivayisi lifaka phakathi ukuthuthukiswa kwamanye amadivayisi kazibuthe namadivayisi kagesi.
Isikhathi sokuthunyelwe: Julayi-30-2025
