Vuto la makina a 800V: mulu wolipirira makina olipirira

Mulu wochaja wa 800V "Zoyambira Zochaja"

Nkhaniyi ikufotokoza makamaka zofunikira zina zoyambirira za 800Vmilu yolipiritsaChoyamba tiyeni tiwone mfundo yolipirira: Pamene nsonga yolipirira yalumikizidwa kumapeto kwa galimoto, mulu wolipirira udzapereka (1) mphamvu yothandizira ya DC yotsika-voltage kumapeto kwa galimoto kuti iyambe BMS yomangidwa (dongosolo loyang'anira batri) ya galimoto yamagetsi. Mukayiyambitsa, (2) lumikizani kumapeto kwa galimoto ndi kumapeto kwa mulu, sinthani magawo oyambira olipirira monga mphamvu yayikulu yolipirira kumapeto kwa galimoto ndi mphamvu yayikulu yotulutsa kumapeto kwa mulu, mbali ziwiri zitagwirizana bwino, BMS (dongosolo loyang'anira batri) kumapeto kwa galimoto idzatumiza zambiri zokhudza mphamvu yolipirira kumalo ochajira magetsindimulu wochapira galimoto yamagetsiidzasintha mphamvu yake yotulutsa mphamvu ndi mphamvu yake malinga ndi izi, ndikuyamba kuyatsa galimotoyo mwalamulo, yomwe ndi mfundo yoyambira yakulumikizana kwa chaji, ndipo tiyenera kudziwa bwino kaye.

Kuchaja kwa 800V: "kuwonjezera mphamvu yamagetsi kapena yamagetsi"

Mwachidziwitso, ngati tikufuna kupereka mphamvu yochaja kuti tifupikitse nthawi yochaja, nthawi zambiri pamakhala njira ziwiri: mwina muwonjezere batri kapena kuonjezera mphamvu yamagetsi; Malinga ndi W=Pt, ngati mphamvu yochaja yawirikiza kawiri, nthawi yochaja idzachepetsedwa mwachibadwa ndi theka; Malinga ndi P=UI, ngati mphamvu yamagetsi kapena yamagetsi yawirikiza kawiri, mphamvu yochaja imatha kuwirikiza kawiri, zomwe zatchulidwa mobwerezabwereza ndipo zimaonedwa kuti ndi zanzeru.

Ngati mphamvu yamagetsi ndi yayikulu, padzakhala mavuto awiri, mphamvu yamagetsi ikakula, chingwe chimakula komanso chimakula chomwe chimafuna mphamvu yamagetsi, zomwe zimawonjezera kukula kwa waya ndi kulemera kwake, zimawonjezera mtengo, ndipo sizoyenera kuti ogwira ntchito azigwira ntchito; Kuphatikiza apo, malinga ndi Q=I²Rt, ngati mphamvu yamagetsi ndi yayikulu, kutayika kwa mphamvu yamagetsi kumakhala kwakukulu, ndipo kutayikako kumaonekera mu mawonekedwe a kutentha, komwe kumawonjezeranso kuthamanga kwa kayendetsedwe ka kutentha, kotero palibe kukayika kuti sikoyenera kuwonjezera mphamvu yamagetsi yamagetsi powonjezera mphamvu yamagetsi nthawi zonse, kaya ndi chaji kapena makina oyendetsa galimoto.

Poyerekeza ndi kuyitanitsa mwachangu kwamphamvu,kuyatsa mwachangu kwambiri kwamagetsi apamwambazimapangitsa kutentha kochepa komanso kutayika kochepa, ndipo makampani ambiri amagalimoto atengera njira yowonjezera mphamvu yamagetsi, pankhani ya kuyitanitsa mwachangu kwamagetsi amphamvu, mwachiphunzitso nthawi yoyitanitsa imatha kuchepetsedwa ndi 50%, ndipo kuwonjezeka kwa mphamvu yamagetsi kungawonjezere mphamvu ya kuyitanitsa kuchokera pa 120KW mpaka 480KW.

Kuchaja kwa 800V: “Zotsatira za kutentha zomwe zimagwirizana ndi magetsi ndi mphamvu yamagetsi”

Koma kaya ndi kukweza mphamvu yamagetsi kapena kukweza mphamvu yamagetsi, choyamba, ndi kukwera kwa mphamvu yanu yochaja, kutentha kwanu kudzaonekera, koma kutentha kwa magetsi kowonjezera mphamvu yamagetsi ndi kukweza mphamvu yamagetsi n'kosiyana. Komabe, yoyamba ndi yabwino poyerekeza.

Chifukwa cha kukana kochepa komwe kumachitika chifukwa cha mphamvu yamagetsi ikadutsa mu kondakitala, njira yowonjezera mphamvu yamagetsi imachepetsa kukula kwa chingwe chofunikira, ndipo kutentha komwe kumafunika kuchotsedwa kumakhala kochepa, ndipo pamene mphamvu yamagetsi ikuwonjezeka, kuwonjezeka kwa dera lodutsa magetsi kumabweretsa kukula kwakukulu kwa dayamita yakunja ndi kulemera kwakukulu kwa chingwe, ndipo kutentha kudzawonjezeka pang'onopang'ono ndi nthawi yowonjezera yochapira, yomwe imabisika kwambiri, zomwe zimakhala zoopsa kwambiri ku batri.

Kuchaja kwa 800V: "Mavuto ena omwe amakumana nawo nthawi yomweyo ndi milu yochaja"

Kuchaja mwachangu kwa 800V kulinso ndi zofunikira zina kumapeto kwa mulu:

Ngati kuchokera kumalingaliro akuthupi, ndi kuwonjezeka kwa magetsi, kukula kwa kapangidwe ka zida zokhudzana nazo kudzawonjezeka, mwachitsanzo, malinga ndi kuchuluka kwa kuipitsidwa kwa IEC60664 ndi 2 ndipo mtunda wa gulu la zinthu zotenthetsera ndi 1, mtunda wa chipangizo chamagetsi apamwamba uyenera kukhala kuyambira 2mm mpaka 4mm, ndipo zofunikira zomwezo zotsutsana ndi kutentha zidzawonjezekanso, pafupifupi mtunda woyenda ndi zofunikira zotenthetsera ziyenera kuwirikiza kawiri, zomwe ziyenera kukonzedwanso mu kapangidwe kake poyerekeza ndi kapangidwe ka makina amagetsi am'mbuyomu, kuphatikiza zolumikizira, mipiringidzo yamkuwa, zolumikizira, ndi zina zotero. Kuphatikiza apo, kuwonjezeka kwa magetsi kudzapangitsanso kuti pakhale zofunikira zambiri zozimitsira arc, ndipo ndikofunikira kuwonjezera zofunikira pazida zina monga ma fuse, mabokosi osinthira, zolumikizira, ndi zina zotero, zomwe zimagwiranso ntchito pakupanga galimoto, zomwe zidzatchulidwa m'nkhani zotsatira.

Dongosolo lochapira la 800V lamphamvu kwambiri liyenera kuwonjezera dongosolo loziziritsira lamadzimadzi logwira ntchito monga tafotokozera pamwambapa, ndipo kuziziritsa kwa mpweya kwachikhalidwe sikungakwaniritse zofunikira kaya ndi kuziziritsa kogwira ntchito kapena kosagwira ntchito, komanso kasamalidwe ka kutentha kwamalo ochapira magalimoto amagetsiMzere wa mfuti kumapeto kwa galimoto nawonso ndi wapamwamba kuposa kale, ndipo momwe mungachepetsere ndikulamulira kutentha kwa gawo ili la dongosolo kuchokera pa mulingo wa chipangizo ndi mulingo wa dongosolo ndiye mfundo yofunika kukonzedwa ndikuthetsedwa ndi kampani iliyonse mtsogolo; Kuphatikiza apo, gawo ili la kutentha si kutentha kokha komwe kumabwera chifukwa cha kudzaza kwambiri, komanso kutentha komwe kumabwera chifukwa cha zida zamagetsi zamagetsi, kotero momwe mungayang'anire nthawi yeniyeni komanso kukhazikika, kogwira mtima komanso kotetezeka kuchotsa kutentha ndikofunikira kwambiri, komwe sikuti kungopita patsogolo pazinthu zokha, komanso kuzindikira mwadongosolo, monga kuyang'anira nthawi yeniyeni komanso kogwira mtima kutentha kwa kudzaza.

Pakadali pano, mphamvu yotulutsa yaMa DC charging pilesPamsika kwenikweni pali 400V, yomwe singathe kutchaja mwachindunji batire yamagetsi ya 800V, kotero chinthu china chowonjezera cha DCDC chikufunika kuti chikweze magetsi a 400V kufika pa 800V, kenako chikatchaja batire, chomwe chimafuna mphamvu zambiri komanso kusintha kwa ma frequency apamwamba, ndipo gawo lomwe limagwiritsa ntchito silicon carbide kuti lilowe m'malo mwa IGBT yachikhalidwe ndiye chisankho chachikulu chomwe chikugwiritsidwa ntchito pakadali pano, ngakhale ma Silicon carbide module amatha kuwonjezera mphamvu yotulutsa ya ma charger piles ndikuchepetsa kutayika, koma mtengo wake ndi wokwera kwambiri, ndipo zofunikira za EMC nazonso ndizokwera.

Mwachidule, kuwonjezeka kwa magetsi kuyenera kuwonjezeredwa pamlingo wa makina ndi chipangizo, kuphatikizapo makina owongolera kutentha, makina oteteza ku chaji, ndi zina zotero, ndipo mulingo wa chipangizocho umaphatikizapo kukonza zida zina zamaginito ndi zida zamagetsi.