800V Kuchaja "Charging Basics"
Ichi chinyorwa chinonyanya kutaura nezve zvimwe zvekutanga zvinodiwa zve800V yekuchaja murwi, tanga watarisa musimboti wekuchaja: kana musoro wepfuti yekuchaja wakabatana kumagumo emotokari, murwi wekuchaja unopa ① yakaderera-voltage yekubatsira DC magetsi kumotokari. kupera, kumisa yakavakirwa-mukati BMS (Battery Management System) yemotokari yemagetsi, mushure mekuita activation, ② kuguma kwemotokari kuchave. yakabatana nekuguma kwemurwi kuti uchinje maparamendi ekuchaja, senge simba rekuchaja rinodiwa rekupedzisira kwemotokari uye simba repamusoro rekubuda remurwi wekupedzisira, uye mativi maviri anowirirana nemazvo.
Mushure mekufananidzwa nemazvo, iyo BMS (Battery Management System) pakupera kwemotokari inotumira ruzivo rwekuda kwesimba kumurwi wekuchaja, uye murwi wekuchaja unogadzirisa kubuda kwayo magetsi uye ikozvino maererano neruzivo urwu, uye kutanga kubhadharisa mota zviri pamutemo. musimboti wekutanga wekubatanidza kuchaja, uye zvakafanira kuti isu titange tajairana nawo.
800V kuchaja: "Boost voltage kana ikozvino"
Tichifunga, tinoda kupa simba rekuchaja kupfupisa nguva yekuchaja,pane kazhinji nzira mbiri: ungave unowedzera bhatiri kana kuwedzera voltage; maererano neW = Pt, kana simba rekuchaja rakapetwa kaviri, ipapo nguva yekuchaja ichave nepakati; maererano neP = UI, kana magetsi kana ikozvino yakapetwa kaviri, simba rekuchaja rinogona kupetwa kaviri, uye izvi zvave zvichitaurwa kakawanda, izvo zvinonziwo zvinonzwisisika.
Kana iyo yazvino yakakwira, pachava nematambudziko maviri, iyo yakakwira ikozvino, yakakura uye yakakura tambo inotakura ikozvino inodiwa, iyo inowedzera dhayamita uye huremu hwewaya, izvo zvinowedzera mutengo, uye pa panguva imwe chete, hazvisi nyore kuti vashandi vashande; uyezve, maererano neQ=I²Rt, kana iyo yazvino yakakwira, iyo yakakura kurasikirwa kwesimba, uye kurasikirwa kunoratidzwa nenzira yekupisa, iyo inowedzerawo kudzvanywa pakutarisira kupisa, saka hapana mubvunzo kuti kuwedzera kwe simba rekuchaja haridiwe kuona kuwedzera kwesimba rekuchaja nekuwedzera ikozvino nguva nenguva.kuwedzera kwesimba rekuchaja hakudiwe, kana kubhadharisa kana kune-mumotokari madhiraivha masisitimu.
Kana ichienzaniswa neyekuchaja nekukurumidza, yakakwira-voltage inokurumidza kuchaja inoburitsa kupisa kushoma uye kurasikirwa kwakaderera, pari zvino, anenge ese mabhizinesi makuru emota atora nzira yekuwedzera voltage, kana iri high-voltage inokurumidza kuchaja, zvinoti, nguva yekuchaja. inogona kupfupikiswa ne50%, uye kukwidziridzwa kwemagetsi kunogona kudhonzwa zviri nyore kumusoro kwesimba rekuchaja kubva pa120KW kusvika 480KW.
800V kuchaja: "Voltage uye ikozvino inoenderana neiyo thermal maitiro".
Asi kunyangwe iwe ukasimudza voltage kana ikozvino, chekutanga, sezvo simba rako rekuchaja richiwedzera, kupisa kwako kuchaonekwa, asi kusimudza voltage uye ikozvino kwekuratidzwa kwekupisa hakuna kufanana, kukurumidza kumwe kunokanganisa bhatiri. uyewo zvishoma, zvishoma zvishoma asi kupisa kwakavanzwa zvakanyanya kujeka kwepamusoro muganhu kunowedzerawo kuoneka. Asi yekutanga ndiyo yakanaka kana ichienzaniswa.
Sezvo ikozvino mune conductor kuburikidza nekushongedzwa kwepasi, inowedzera nzira yemagetsi inoderedza saizi inodiwa yetambo, inoburitsa kupisa kushoma, uye inosimudzira iripo panguva imwe chete, iyo yazvino-inotakura muchinjiko-chikamu nzvimbo yekuwedzera inotungamira kune yakakura kunze. dhayamita tambo yehuremu, nepo nenguva yekuchaja yehurefu hurefu hunowedzera zvishoma nezvishoma, yakavanzika, nzira iyi yebhatiri ine njodzi huru.
800V kuchaja: "Kuchaja murwi mamwe matambudziko akananga"
800V inokurumidza kuchaja zvakare ine zvimwe zvakasiyana zvinodiwa pamurwi wekupedzisira:
Kana iwe ukatarisa padanho remuviri, sezvo magetsi anowedzera, dhizaini yehukuru hwechishandiso chakakodzera inosungirwa kuwedzera, senge IEC60664 kusvibiswa level 2 insulation zvinhu boka 1 yakakwira voltage mudziyo chinhambwe chinodiwa kubva 2mm kusvika 4mm, iyo imwechete insulation. kupikisa zvinodiwa zvichawedzera, inenge creepage kureba uye zvinodiwa zvekudzivirira zvinodiwa kuti zviwedzere nechikamu cheviri, izvo zvinoda yakakwira voltage mukugadzirwa kweiyo yapfuura.
Izvi zvinoda dhizaini yeyapfuura voltage system kuti igadzirise saizi yemidziyo yakakodzera, kusanganisira majoini, mitsara yemhangura, majoini, nezvimwe, pamusoro pekuwedzera kwevoltage kunotungamira kune zvakakwirira zvinodiwa zvekudzima arc, kudiwa kwemamwe maturusi. zvakadai semafusi, mabhokisi ekuchinja, zvibatanidza, nezvimwewo, kuti uvandudze zvinodiwa, izvi zvinodiwa zvinoshandawo pakugadzirwa kwemotokari.
Iyo yakakwira-voltage 800V yekuchaja sisitimu, sezvataurwa pamusoro, inoda kuwedzera yekunze inoshanda yemvura kutonhora sisitimu, iyo yechinyakare mhepo-yakatonhodzwa zvese zvinoshanda uye kutonhora kusingaite haigone kuzadzisa zvinodiwa pamutsara wekuchaja pfuti kusvika kumagumo emota. manejimendi iri kudiwa zvakanyanya kupfuura nakare kose, uye ichi chikamu chetembiricha yesystem maitiro ekudzikisa uye kutonga kubva padanho remuchina uye system level ndiyo inotevera nguva yekuvandudza nekugadzirisa dambudziko rekuona;
nekuwedzera, chikamu ichi chekupisa hachisi chete kupisa kubva pakuwedzera, asiwo kupisa kubva pakuwedzera, iyo isiri iyo chete chikamu chegadziriro, asiwo kupisa kubva pakuwedzera. Haisi chete kupisa kunounzwa nekuwandisa, asiwo kupisa kunounzwa ne-high-frequency power devices, saka maitiro ekuita real-time monitoring uye yakagadzikana, inoshanda, uye yakachengeteka kubvisa kupisa kunokosha zvikuru, iyo isina kungoita chete. budiriro yezvinhu asi zvakare kuoneswa kweiyo sisitimu, senge yekuchaja tembiricha chaiyo-nguva uye inobudirira yekutarisa.
Parizvino pamusika DC inochaja murwi inobuda voltage ndeye 400V, uye haigone zvakananga ku800V simba bhatiri kuchaja, saka inoda imwe inosimudzira DCDC zvigadzirwa zvichaita 400V voltage kusvika 800V, uye ipapo kuchaja bhatiri, izvo zvinoda yakakwirira simba high-frequency kutendeuka, kushandiswa kwesilicon carbide kutsiva yechinyakare IGBT module ndiyo sarudzo huru yenzira, kunyangwe iyo silicon carbide module inogona kuwedzera simba rekubuda murwi wekuchaja, asiwo kuwedzera simba rekubuda remurwi wekuchaja. Kunyangwe silicon carbide modules inogona kuwedzera simba rekubuda remurwi wekuchaja uye kuderedza kurasikirwa, mutengo unokwirawo zvakanyanya, uye zvinodiwa zveEMC zvakakwirira.
Pfupisa. Kuwedzera kwemagetsi kuchave kuri padanho rehurongwa uye nhanho yechishandiso inoda kuvandudzwa, iyo system level inosanganisira thermal management system, yekuchaja yekudzivirira system, nezvimwe, uye nhanho yechishandiso inosanganisira mamwe magineti zvishandiso nemagetsi ekugadzirisa.
Nguva yekutumira: Jan-30-2024