Ciki na mota yana kunshe da abubuwa da yawa, musamman bayan wutar lantarki. Manufar dandalin wutar lantarki shine don dacewa da bukatun wutar lantarki na sassa daban-daban. Wasu sassan suna buƙatar ƙarancin wutar lantarki, kamar kayan lantarki na jiki, kayan nishaɗi, masu sarrafawa, da sauransu.babban ƙarfin lantarki, irin su tsarin batir, tsarin tuki mai ƙarfi, tsarin caji, da dai sauransu (400V/800V), don haka akwai babban dandamali na ƙarfin lantarki da ƙarancin wutar lantarki.
Sannan bayyana alakar da ke tsakanin 800V da caji mai sauri: Yanzu motar fasinja mai tsafta gabaɗaya kusan tsarin baturi 400V, injin da ya dace, na'urorin haɗi, babban ƙarfin wutar lantarki shima matakin ƙarfin lantarki iri ɗaya ne, idan tsarin wutar lantarki ya karu, yana nufin cewa a karkashin irin wannan buƙatar wutar lantarki, ana iya rage halin yanzu da rabi, duk asarar tsarin ya zama karami, zafi ya rage, amma kuma kara nauyi, aikin abin hawa yana taimakawa sosai.
A zahiri, caji mai sauri ba shi da alaƙa kai tsaye da 800V, galibi saboda yawan cajin baturi ya fi girma, yana ba da damar caji mafi girma, wanda shi kansa ba shi da alaƙa da 800V, kamar dandamali na 400V na Tesla, amma kuma yana iya samun babban sauri. caji a cikin nau'i na babban halin yanzu. Amma 800V shine don cimma babban cajin wutar lantarki yana samar da tushe mai kyau, saboda guda don cimma ƙarfin cajin 360kW, ka'idar 800V kawai tana buƙatar 450A halin yanzu, idan yana da 400V, yana buƙatar 900A halin yanzu, 900A a cikin yanayin fasaha na yanzu don motocin fasinja shine. kusan ba zai yiwu ba. Saboda haka, ya fi dacewa a haɗa 800V da babban cajin sauri tare, wanda ake kira dandalin fasahar caji mai sauri 800V.
A halin yanzu, akwai nau'ikan iri ukubabban ƙarfin lantarkitsarin gine-ginen tsarin da ake sa ran cimma babban caji mai sauri, kuma ana sa ran cikakken tsarin wutar lantarki ya zama na al'ada:
(1) Cikakken tsarin babban ƙarfin lantarki, wato, batirin wutar lantarki 800V + 800V motor, sarrafa wutar lantarki + 800V OBC, DC/DC, PDU + 800V iska kwandishan, PTC.
Abũbuwan amfãni: High makamashi musayar kudi, alal misali, makamashi canza kudi na lantarki drive tsarin ne 90%, da makamashi canza kudi na DC/DC ne 92%, idan dukan tsarin ne high irin ƙarfin lantarki, ba lallai ba ne don depressurize ta hanyar. DC/DC, tsarin canjin makamashi shine 90% × 92% = 82.8%.
Rashin ƙarfi: Tsarin gine-ginen ba kawai yana da manyan buƙatu akan tsarin baturi ba, sarrafa wutar lantarki, OBC, DC / DC na'urorin wutar lantarki suna buƙatar maye gurbinsu da Si-based IGBT SiC MOSFET, motar, kwampreso, PTC, da dai sauransu suna buƙatar haɓaka aikin ƙarfin lantarki. , Ƙarshen farashin mota na gajeren lokaci ya fi girma, amma a cikin dogon lokaci, bayan sarkar masana'antu ya balaga kuma tasirin sikelin yana da. Ƙarar wasu sassa yana raguwa, ƙarfin makamashi yana inganta, kuma farashin abin hawa zai fadi.
(2) Bangare nababban ƙarfin lantarki, wato, 800V baturi +400V motor, lantarki kula +400V OBC, DC/DC, PDU +400V iska kwandishan, PTC.
Abũbuwan amfãni: m yi amfani da data kasance tsarin, kawai hažaka da ikon baturi, da kudin na mota karshen canji ne karami, kuma akwai mafi girma m a cikin gajeren lokaci.
Rashin hasara: Ana amfani da matakan saukar da DC/DC a wurare da yawa, kuma asarar makamashi yana da girma.
(3) Duk ƙananan ƙananan gine-gine, wato, 400V baturi (cajin 800V a cikin jerin, cajin 400V a layi daya) + 400V mota, sarrafa wutar lantarki + 400V OBC, DC / DC, PDU + 400V iska kwandishan, PTC.
Abũbuwan amfãni: Canjin ƙarshen mota ƙarami ne, baturi kawai yana buƙatar canza BMS.
Rashin hasara: haɓakar jerin, haɓaka farashin baturi, yi amfani da baturin wutar lantarki na asali, haɓaka ingantaccen caji yana iyakance.
Lokacin aikawa: Satumba 18-2023