Umngeni wenkqubo ye-800V: imfumba yokutshaja yenkqubo yokutshaja

800V imfumba yokutshaja “IiNqobo zokuTjaja”

Eli nqaku lithetha ikakhulu ngeemfuno zokuqala ze-800Vukutshaja iimfumba, okokuqala makhe sijonge umgaqo wokutshaja: Xa incam yokutshaja iqhagamshelwe ekupheleni kwesithuthi, imfumba yokutshaja iya kubonelela (1) i-voltage low-voltage eyi-DC encedisayo ukuya ekupheleni kwesithuthi ukuze kusebenze i-BMS eyakhelwe-ngaphakathi (inkqubo yokulawula ibhetri) yesithuthi sombane Emva kokusebenza, (2) ukudibanisa utshintshiselwano lwemoto kwi-charging isiphelo se-charging ye-charging isiphelo se-charging power end of the char chaging the end isiphelo sesithuthi kunye namandla aphezulu okukhutshwa kwemfumba ekupheleni, emva kokuba amacala amabini ehambelana ngokuchanekileyo, i-BMS (inkqubo yokulawula ibhetri) yokuphela kwesithuthi iya kuthumela ulwazi lwemfuno yamandlaisikhululo sokutshaja ev, kwaye iimfumba yokutshaja imoto yombaneiya kulungelelanisa imveliso yayo yombane kunye neyangoku ngokwale ngcaciso, kwaye iqalise ngokusemthethweni ukutshaja isithuthi, ongumgaqo osisiseko weukutshaja uqhagamshelo, yaye kufuneka siqhelane nayo kuqala.

Ukutshaja kwe-800V: "yongeza i-voltage okanye yangoku"

Ngokwethiyori, ukuba sifuna ukubonelela ngamandla okuhlawula ukunciphisa ixesha lokuhlawula, ngokuqhelekileyo kukho iindlela ezimbini: mhlawumbi ukwandisa ibhetri okanye ukwandisa i-voltage; Ngokuka W=Pt, ukuba amandla okutshaja aphindwe kabini, ixesha lokutshaja liya kuba lisiqingatha; Ngokutsho kwe-P = UI, ukuba i-voltage okanye yangoku iphindwe kabini, amandla okutshaja anokuphinda aphindwe kabini, akhankanywe ngokuphindaphindiweyo kwaye athathwa njengengqiqo.

Ukuba i-current ikhulu, kuya kubakho iingxaki ezimbini, i-current enkulu, inkulu kunye ne-bulkier ikhebula elifuna langoku, eliya kwandisa ububanzi bocingo kunye nobunzima, ukwandisa iindleko, kwaye akulula ukuba abasebenzi basebenze; Ukongeza, ngokutsho kwe-Q=I²Rt, ukuba i-current iphezulu, ilahleko yamandla inkulu, kwaye ilahleko ibonakaliswa ngohlobo lobushushu, nto leyo enyusa uxinzelelo lolawulo lobushushu, ngoko ke akukho mathandabuzo okuba ukunyusa amandla okutshaja ngokuqhubekeka ukonyusa umsinga, nokuba iyatshaja okanye i-in-car drive system.

Xa kuthelekiswa nokutshaja okukhawulezileyo kwangoku,ukutshaja okukhawulezayo kombane ophezuluivelisa ubushushu obuncinci kunye nelahleko ephantsi, kwaye phantse iinkampani zemoto eziqhelekileyo ziye zamkela indlela yokunyusa amandla ombane, kwimeko yokutshaja ngokukhawuleza kwe-voltage, ngokwethiyori ixesha lokutshaja linokufinyezwa nge-50%, kwaye ukonyuka kombane kunokunyusa ngokulula amandla okutshaja ukusuka kwi-120KW ukuya kwi-480KW.

Ukutshaja kwe800V: "Iimpembelelo zobushushu ezihambelana nombane kunye nangoku"

Kodwa nokuba ukwandisa i-voltage okanye ukwandisa i-current, okokuqala, ngokunyuka kwamandla akho okutshaja, ubushushu bakho buya kubonakala, kodwa ukubonakaliswa kwe-thermal yokunyusa i-voltage kunye nokwandisa okwangoku kuyahluka. Nangona kunjalo, eyokuqala ikhethwa xa kuthelekiswa.

Ngenxa yokunganyangeki okuphantsi okufunyanwa ngumbane xa udlula kwi-conductor, indlela yokunyusa i-voltage inciphisa ubungakanani bentambo efunekayo, kwaye ubushushu obuza kuchithwa buncinci, kwaye ngelixa umsinga usanda, ukunyuka kwendawo ephetheyo yangoku kukhokelela kububanzi obungaphandle kunye nobunzima bekhebula enkulu, kwaye ubushushu buya kunyuka ngokucotha kunye nokwandiswa kwexesha lokutshaja, nto leyo eyingozi kakhulu kwibhetri.

Ukutshaja kwe-800V: "Eminye imiceli mngeni ekhawulezileyo ngeemfumba zokutshaja"

I-800V yokutshaja ngokukhawuleza ineemfuno ezahlukeneyo ekupheleni kwemfumba:

Ukuba ukusuka kwindawo yokujonga, kunye nokunyuka kwamandla ombane, ubungakanani boyilo lwezixhobo ezinxulumeneyo buya kwanda, umzekelo, ngokwenqanaba longcoliseko lwe-IEC60664 yi-2 kunye nomgama weqela lezinto zokufakelwa kwe-insulation yi-1, umgama wesixhobo sombane ophezulu kufuneka ube ukusuka kwi-2mm ukuya kwi-4mm, kwaye iimfuno ezifanayo zokumelana ne-insulation nazo ziya kwanda kwaye zifuna ukuphinda ziphinde ziphinde zifakwe kwi-insulation. uyilo xa kuthelekiswa noyilo lwangaphambili lwenkqubo yombane, kubandakanywa izihlanganisi, imivalo yobhedu, izihlanganisi, njl njl. Ukongeza, ukunyuka kwamandla ombane kuya kukhokelela kwiimfuno eziphezulu zokucima i-arc, kwaye kuyimfuneko ukwandisa iimfuno zezixhobo ezithile ezifana ne-fuses, iibhokisi zokutshintsha, izihlanganisi, njl., ezikwasebenza kuyilo lwemoto, eya kukhankanywa kumanqaku alandelayo.

I-high-voltage 800V inkqubo yokutshaja kufuneka yongeze inkqubo yokupholisa ulwelo esebenzayo yangaphandle njengoko kukhankanyiwe ngasentla, kwaye ukupholisa komoya kwemveli akukwazi ukuhlangabezana neemfuno nokuba kuyasebenza okanye kupholisa nje, kunye nolawulo lobushushu bomoya.isikhululo sokutshaja iimoto zombaneumpu umgca ukuya ekupheleni isithuthi nayo iphezulu kunangaphambili, kunye nendlela yokunciphisa nokulawula ubushushu yale nxalenye yenkqubo ukusuka kwinqanaba isixhobo kunye nenqanaba inkqubo ingongoma ukuze kuphuculwe kwaye isonjululwe yinkampani nganye kwixesha elizayo; Ukongeza, le nxalenye yobushushu ayibubo nje ubushushu obuziswe kukutshaja, kodwa nobushushu obuziswe zizixhobo zamandla ezixhaphake kakhulu, ngoko ke indlela yokwenza esweni ixesha lokwenyani kunye nokuzinza, okusebenzayo kwaye kukhuselekile ukususa ubushushu kubaluleke kakhulu, okungekuko ukuphumelela kwimathiriyeli kuphela, kodwa kwakhona ubhaqo olucwangcisiweyo, olufana nexesha lokwenyani kunye nokubekwa kweliso okusebenzayo kobushushu bokutshaja.

Okwangoku, imveliso yombane weDC ukutshaja iimfumbakwimarike ngokusisiseko 400V, engenakuhlawulisa ngokuthe ngqo ibhetri amandla 800V, ngoko ukunyusa ezongezelelweyo DCDC imveliso efunekayo ukunyusa amandla ombane 400V ukuya 800V, uze uhlawule ibhetri, nto leyo efuna amandla aphezulu kunye nokutshintsha high-frequency, kunye nemodyuli esebenzisa isilicon carbide ukuba indawo IGBT yemveli imodyuli yemveli imodyuli canconbide imodyuli canconbide kunye nokwanda kwemodyuli canconbide yangoku, nangona imodyuli ye-carconbide cana ukunciphisa ilahleko, kodwa ixabiso liphezulu kakhulu, kwaye iimfuno ze-EMC nazo ziphezulu.

Ukuyishwankathela. Ngokusisiseko, ukonyuka kwamandla ombane kuya kufuneka kwandiswe kwinqanaba lenkqubo kunye nenqanaba lesixhobo, kubandakanya nenkqubo yolawulo lobushushu, inkqubo yokhuseleko lokutshaja, njl.