Vuto la dongosolo la 800V: Mulu wolipiritsa pamakina opangira

800V Kulipiritsa "Zofunika Kulipiritsa"

Nkhaniyi ikukamba za zofunikira zoyambira za mulu wothamangitsa wa 800V, choyamba yang'anani pa mfundo yolipirira: mutu wamfuti ukalumikizidwa kumapeto kwagalimoto, mulu wothamangitsa upereka ① magetsi ochepera a DC owonjezera pagalimoto. kumapeto, kuyambitsa BMS (Battery Management System) yomangidwa mugalimoto yamagetsi, mutatha kuyambitsa, ② mapeto a galimoto adzakhala olumikizidwa kumapeto kwa mulu kuti asinthanitsa magawo oyambira kulipiritsa, monga kuchuluka kwamphamvu kwapamapeto kwagalimoto ndi mphamvu yayikulu yotulutsa kumapeto kwa mulu, ndipo mbali ziwirizo zidzafanana bwino.

Pambuyo pofananiza bwino, BMS (Battery Management System) pamapeto agalimoto idzatumiza chidziwitso chofuna mphamvu ku mulu wothamangitsa, ndipo mulu wothamangitsa udzasintha mphamvu zake zotulutsa ndi zapano malinga ndi chidziwitsochi, ndikuyamba kulipiritsa galimotoyo, yomwe ndi mfundo yofunika kwambiri yolumikizirana ndi kulipiritsa, ndipo ndikofunikira kuti tidziwe bwino kaye.

Kuthamanga kwa 800V: "Onjezani voteji kapena panopa"

Mwachidziwitso, tikufuna kupereka mphamvu yolipira kuti tifupikitse nthawi yolipira,Nthawi zambiri pali njira ziwiri: mwina mumawonjezera batire kapena kuwonjezera mphamvu; malinga ndi W = Pt, ngati mphamvu yolipiritsa ikuwirikiza kawiri, ndiye kuti nthawi yolipiritsa mwachibadwa idzakhala ndi theka; malinga ndi P = UI, ngati magetsi kapena magetsi akuwirikiza kawiri, mphamvu yowonjezera imatha kuwirikiza kawiri, ndipo izi zatchulidwa mobwerezabwereza, zomwe zimaganiziridwanso kuti ndizomveka.

Ngati zamakono zili zapamwamba, padzakhala mavuto a 2, kumtunda kwamakono ndi, kukula ndi kuwonjezereka kwa chingwe chonyamulira panopa chikufunika, chomwe chidzawonjezera kukula kwake ndi kulemera kwa waya, zomwe zidzawonjezera mtengo, komanso pa nthawi yomweyo, sikoyenera kwa ogwira ntchito; Kuphatikiza apo, malinga ndi Q = I²Rt, ngati pakali pano ndipamwamba, kutayika kwakukulu kwa mphamvu, ndipo kutayika kumawonekera mu mawonekedwe a kutentha, komwe kumawonjezeranso kupanikizika pa kayendetsedwe ka matenthedwe, kotero palibe kukayika kuti kuwonjezeka kwa Kuthamangitsa mphamvu sikofunikira kuti muzindikire kuwonjezeka kwa mphamvu yopangira powonjezera yomwe ilipo mosalekeza.Kuchulukitsa kwamphamvu sikofunikira, ngakhale pakulipiritsa kapena pamakina oyendetsa galimoto.

Poyerekeza ndi kuthamanga kwanthawi yayitali, kuthamanga kwamphamvu kwamagetsi kumapangitsa kutentha pang'ono komanso kutayika pang'ono, pakadali pano, pafupifupi mabizinesi onse apagalimoto apamtunda atengera njira yowonjezereka yamagetsi, pankhani ya kuthamanga kwamphamvu kwambiri, mongoyerekeza, nthawi yolipira. itha kufupikitsidwa ndi 50%, ndipo kukweza kwamagetsi kumatha kukokedwa mosavuta kuchokera ku 120KW mpaka 480KW.

Kuthamanga kwa 800V: "Voltge ndi zamakono zimagwirizana ndi kutentha".

Koma ngakhale mutakweza magetsi kapena zamakono, choyamba, pamene mphamvu yanu yowonjezera ikuwonjezeka, kutentha kwanu kumawonekera, koma kukweza magetsi ndi kutentha kwa kutentha sikuli kofanana, mofulumira zina zomwe zimakhudza batire ndi. komanso pang'ono, ndi pang'onopang'ono koma kutentha chobisika kwambiri zoonekeratu chapamwamba malire ndi zoonekeratu. Koma yoyamba ndi yabwino poyerekeza. 

Monga panopa mu kondakitala kudzera kukana m'munsi, kumawonjezera voteji njira amachepetsa chofunika chingwe kukula, zimatulutsa kutentha pang'ono, ndi kumawonjezera panopa pa nthawi yomweyo, panopa-kunyamula cross-Sectional dera la kuwonjezeka kumabweretsa lalikulu kunja. m'mimba mwake chingwe kulemera, pamene kulipiritsa nthawi yaitali kutentha pang'onopang'ono kuwonjezera, mobisa, njira iyi ya batire ndi chiopsezo chachikulu.

Kulipiritsa kwa 800V: "Kulipiritsa mulu wamavuto achindunji"

Kuthamangitsa mwachangu kwa 800V kumakhalanso ndi zofunikira zina kumapeto kwa mulu:

Ngati muyang'ana pa msinkhu wa thupi, pamene voteji ikuwonjezeka, mapangidwe a kukula kwa chipangizochi ayenera kuwonjezeka, monga IEC60664 kuipitsidwa kwa msinkhu 2 gulu la zinthu zakuthupi 1 mtunda wautali wa voltage umafunika kuchokera ku 2mm mpaka 4mm, kusungunula komweko. kukaniza zofunika zidzawonjezeka, pafupifupi creepage mtunda ndi kutchinjiriza zofunika kuonjezera ndi mbali ziwiri, zomwe zimafuna voteji apamwamba mu kamangidwe ka m'mbuyomo.

Izi zimafuna mapangidwe amagetsi am'mbuyomu kuti akonzenso kukula kwa zida zoyenera, kuphatikiza zolumikizira, mizere yamkuwa, zolumikizira, ndi zina zambiri, kuwonjezera pakuwonjezeka kwamagetsi kumabweretsanso zofunika kwambiri pakuzimitsa kwa arc, kufunikira kwa zida zina. monga ma fuse, mabokosi osinthira, zolumikizira, ndi zina zambiri, kuti apititse patsogolo zofunikira, izi zimagwiranso ntchito pamapangidwe agalimoto.

Dongosolo lacharging la 800V lamphamvu kwambiri, monga tafotokozera pamwambapa, liyenera kukulitsa njira yoziziritsira yamadzi yakunja yogwira ntchito, zoziziritsa zoziziritsa kukhosi komanso zoziziritsa zokhazikika sizingakwaniritse zofunikira za mzere wamfuti wothamangitsa mpaka kumapeto kwamoto. kasamalidwe ndi wovuta kwambiri kuposa kale lonse, ndipo gawo ili la kutentha dongosolo kuchepetsa ndi kulamulira kuchokera chipangizo mlingo ndi dongosolo mlingo ndi nthawi yotsatira kusintha ndi kuthetsa vuto la maganizo;

kuonjezera apo, mbali iyi ya kutentha sikungotentha kokha chifukwa cha kuchulukirachulukira, komanso kutentha kwapadera, komwe sikuli gawo lokha la dongosolo, komanso kutentha kochokera ku overcharging. Si kutentha kokha komwe kumabwera chifukwa cha kuchulukirachulukira, komanso kutentha komwe kumabwera ndi zida zamagetsi zothamanga kwambiri, kotero momwe mungayang'anire nthawi yeniyeni komanso yokhazikika, yogwira mtima, komanso yotetezeka kuti muchotse kutentha ndikofunikira kwambiri, zomwe sizinangokhalapo zokha. zotsogola zakuthupi komanso kuzindikira kwadongosolo, monga kulipiritsa kutentha munthawi yeniyeni komanso kuwunika kogwira mtima.

Panopa pa msika DC kulipiritsa mulu linanena bungwe voteji ndi 400V, ndipo sangathe mwachindunji 800V mphamvu batire kulipiritsa, choncho amafunikira zina mphamvu DCDC mankhwala adzakhala 400V voteji kuti 800V, ndiyeno kulipiritsa batire, amene amafuna apamwamba mphamvu mkulu pafupipafupi kutembenuka, Kugwiritsa ntchito silicon carbide m'malo mwa gawo lachikhalidwe la IGBT ndiye njira yayikulu yosankha njira, ngakhale gawo la silicon carbide limatha kukulitsa mphamvu yamagetsi. mulu wolipiritsa, komanso kuwonjezera mphamvu yotulutsa mulu wothamangitsa. Ngakhale ma silicon carbide modules amatha kuwonjezera mphamvu yotulutsa mulu wothamangitsa ndikuchepetsa kutayika, mtengo umakweranso kwambiri, ndipo zofunikira za EMC ndizokwera.

Fotokozerani mwachidule. Kuwonjezeka kwamagetsi kudzakhala pamlingo wamakina ndipo mulingo wa chipangizocho uyenera kukonzedwanso, mulingo wamakina kuphatikiza kasamalidwe ka matenthedwe, makina oteteza ma charger, ndi zina zambiri, komanso mulingo wa chipangizocho kuphatikiza zida zina zamaginito ndi zida zamagetsi kuti ziwongolere.