Kodi Battery System Control ndi chiyani?
Funso limabwera kwambiri kuchokera kumagulu ogula zinthu poyerekeza ndi mawu. Ayang'ana mapaketi awiri a 48V 400Ah, awona maselo omwewo omwe alembedwa pamapepala onse awiri, ndikufunsa chifukwa chake wina amawononga 30% yowonjezera. Yankho pafupifupi nthawi zonse mu dongosolo ulamuliro. Koma ndizovuta kugulitsa chifukwa simungathe kujambula algorithm yowongolera.
Kuwongolera kachitidwe ka batri ndi njira yomwe imagwirizanitsa momwe paketi imagwirira ntchito-pamene imaloleza kulipiritsa, momwe imasankhira ma contactor, kaya imalinganiza ma cell, momwe imayankhira kutentha. Maselo ndi zinthu panthawiyi. CATL, EVE, CALB-onse amapanga ma cell a LFP abwino. Zomwe zimatsimikizira ngati paketi imakhala yozungulira 3000 kapena mizungu 1500 pansi pakugwiritsa ntchito komweko makamaka zimatengera momwe maselowo amayendetsedwera.
Zomwe Zimasokonekera
Nazi zina zomwe zimadabwitsabe anthu. Ma cell a lithiamu sangathe kulipiritsidwa pansi pa 0 digiri. Osati "siziyenera kukhala"-sizingathe, popanda kuwonongeka. Zomwe zimachitika ndi ma ion a lithiamu sangathe kulowerera bwino mu anode ya graphite kukazizira. M'malo mwake amabisala ngati zitsulo za lithiamu pamwamba. Izi ndizokhazikika. Selo ikuwoneka bwino, imakhala yabwino, imagwira ntchito bwino kwa miyezi. Kenako mumapeza kutha kwamphamvu komwe kumathamanga, ndipo pamapeto pake zazifupi zamkati kuchokera ku kukula kwa dendrite.
Battery University zolembedwa zaka zapitazo. Kuyezetsa kwawo kumasonyeza kuti ngakhale maselo omwe amaperekedwa pa -10 digiri ndi kuchepetsedwa panopa amasonyezabe lithiamu plating pansi pa microscope. Zowonongeka ndizowonjezereka komanso zosawoneka mpaka sizitero.
Chifukwa chake BMS iyenera kukakamiza malire a kutentha. Ngati mukuyendetsa ma forklift m'malo ozizira ozizira kapena mayadi akunja m'nyengo yozizira, paketiyo iyenera kukana chiwongolero chotsika. Osangochenjeza-kukana kwenikweni. Timayika zathu pa -10℃cutoff kuti tilipirire, ndi kuchepetsedwa kwapano pakati pa -10 digiri ndi 0 digiri. Makina ena otchipa alibe chitetezo konse.
Kusungirako kozizira komanso kusungirako zinthu zachisanu ndizoyipitsitsa pa izi. Mapaketi amalowa ndi kutuluka m'malo oziziritsa, akumalipira m'madoko osatenthedwa. Othandizira samaganizira chifukwa asidi a lead-analibe malire awa.
Nkhani ya-ndi yosiyana koma yokhudzana{1}}ndi nkhani ya katsatidwe ka ma contactor osati kutentha, koma ndi chinthu chinanso chomwe sichimadumphidwa kuti tisunge mtengo. Mukatseka contactors kulumikiza batire paketi katundu, pali mphindi pamene capacitance onse pa katundu mbali ayenera kulipira mmwamba. Ngati muthamangitsa voteji yodzaza ndi ma capacitor otulutsidwa, mumapeza ma spikes apano kuposa 1000A kwa ma milliseconds ochepa. Zokwanira kuti weld contactor nsonga pamodzi.
A contactor kuti welds chatsekedwa sangathe kusagwirizana paketi pa vuto. Izi zikutanthauza kuti chitetezo chowonjezera chimasiya kugwira ntchito.
Njira yothetsera vutoli ndiyosavuta{{0}kutseka koyamba ndi negative, kenaka perekani panopa pogwiritsa ntchito -charge resistor, fufuzani mpaka voltage igunda pafupifupi 95% ya magetsi a pack voltage ndi stable gradient, kenaka kutseka main positive. Zimatenga 2-3 masekondi. Ophatikiza ena amalumpha kuti asunge nthawi yoyambira. Zimagwira bwino mpaka zitatha.
Gawo Lolinganiza
Izi zimandikhumudwitsa chifukwa ndizokhazikika. Mungathe kugula A-maselo a giredi kuchokera ku kampani yodziwika bwino yopanga mabatire a LiFePO4, kuwamanga bwino, ndikukhalabe ndi paketi yapakati chifukwa kusanja kulibe.
Nkhani ndi kulekerera kwa kupanga. Maselo amtundu womwewo amasiyana ndi 1-3%. Ndizo zenizeni basi. Mumndandanda, otsika kwambiri-amaletsa kuchuluka kwa ma cell (amayamba opanda kanthu) ndi kuchuluka kwa malire a cell (amafika poyambirira). Popanda kusanja, mukugwiritsa ntchito mwina 90% ya kuchuluka kwenikweni kwa paketi. Ndipo selo lofookalo limakhala lopanikizika kwambiri mkombero uliwonse, limakalamba mwachangu, limafowoka. Positive feedback loop.
Kusawerengeka kumatulutsa magazi ochulukirapo kudzera mu resistors. 50-100mA nthawi zambiri. Ngati selo ili 50mAh patsogolo pa ena, ndiye ola loti mukonze. Ndibwino kulipira usiku wonse. Koma zida zonyamulira sizimakulipirani nthawi imodzi-mumakulipirani nthawi yopuma, kuyendetsa mashifiti angapo, kuyendetsa galimoto. Kusanja bwino sikungapitirire.
Kuchita bwino kumasuntha mphamvu pakati pa maselo. Mafunde apamwamba, palibe mphamvu yowononga. Mapaketi athu amayendetsa bwino ku 1A + chifukwa mapulogalamu amafunikira.
Mfundoyi imayang'anira ma voltage apakati pama cell onse{{0}mpaka 160 m'mapaketi akulu akulu-ndipo amawonetsa ma cell omwe achoka patali. Kusanja kumagwira ntchito pamwamba pa 3.7V avareji yamagetsi yamagetsi, pakulipiritsa, pomwe palibe mbendera zolakwa. Selo likafika mkati mwa 10mV pafupifupi, limatuluka pamzere wofananira.
Kusiyanaku kumawonekera-pakusunga mphamvu kwanthawi yayitali. Mapaketi okhala ndi kusanja bwino amakhala mkati mwa ma cell a 20mV-mpaka-kusiyana kwa ma cell pa masauzande ambiri. Mapaketi popanda iwo amasunthika ku 100mV + kusiyana mkati mwa chaka chimodzi, zomwe zikutanthauza kuchepa kwakukulu kogwiritsa ntchito.
Kuyankha kwa Thermal
Aliyense amadziwa za chenjezo lapamwamba- la kutentha kwa madigiri 55, kutseka kwa madigiri 60. Gawo lothandiza kwambiri ndi momwe mumayankhira popanda kungopha zida.
Forklift pakati pa nyumba yosungiramo katundu yokhala ndi katundu pamafoloko sayenera kungotseka chifukwa kutentha kumadutsa pakhomo. Ndizoopsa. Zomwe mukufuna ndikuchepetsa pang'onopang'ono-chepetsani malire omwe alipo pano pamene kutentha kumakwera, lolani wogwiritsa ntchitoyo amalize ntchitoyo ndi mphamvu yocheperako, ndikukakamiza kuti-ichepetse nthawi.
Chenjezo +
Kutulutsa
Kunyoza
Kulamulidwa
Tsekani
Phukusi Lalephera
(Inspection Req.)
Zowunikira zathu zamatenthedwe pamagawo angapo pagawo lililonse chifukwa kutentha mkati mwa paketi kumatha kugunda madigiri 15 pansi pa katundu wolemetsa. Sensa imodzi ya paketi yonse sikukuuzani chilichonse chothandiza. Ngati gawo limodzi limatentha kwambiri kuposa ma℃10, nthawi zambiri izi zimakhala chenjezo loyambirira la vuto lomwe likukula. Timayimitsa kusiyana pamwamba pa madigiri 10 kuti tifufuze.
Zigawo zoyankhira ndizosanjikiza: pamwamba pa 45 digiri, chepetsani ndalama zamakono. Pamwamba pa 55 digiri, chenjezo komanso kutulutsa kutsika. Pamwamba pa madigiri 60, kutsatiridwa kumayendetsedwa. Pamwamba pa digiri ya 65, paketi yodziwika ngati yalephera kuyembekezera kuyang'aniridwa. Gawo lililonse limapereka chidziwitso ndi zosankha kwa wogwiritsa ntchito osati kungodula mphamvu.
Zomwe Izi Zimachokera
Tikamalankhula ndi makasitomala kufananiza ogulitsa pakiti ya batri ya lithiamu, zokambiranazo zimayamba ndi ma cell specs ndi mtengo. Pabwino. Koma nthawi ina muyenera kufunsa za control logic-kuchepetsa kutentha kwanji, njira yofananira pa nthawi yanji,-kutsatana kotani kolipiritsa. Mayankhowa amakuuzani ngati mukuyang'ana njira zamakina kapena mabokosi otsika mtengo-.
IEC 62619 imakwirira mabatire a lithiamu am'mafakitale a forklifts, AGVs, zinthu zamtunduwu. Zimafunika kusanthula chitetezo chogwira ntchito. Koma mapaketi awiri amatha kudutsa 62619 ndikukhala ndi kuwongolera kosiyana kosiyana. Muyezo ndi pansi, osati denga.
Komabe. Maselo amapeza chidwi chonse. Dongosolo lowongolera limagwira ntchito zambiri.
