Chiyambi:
Ma chips okhudzana ndi magetsi nthawi zonse akhala gulu la zinthu zomwe zalandiridwa kwambiri. Ma chips oteteza mabatire ndi mtundu wa ma chips okhudzana ndi magetsi omwe amagwiritsidwa ntchito kuzindikira zolakwika zosiyanasiyana m'mabatire a selo imodzi ndi ma cell ambiri. M'mabatire a masiku ano, makhalidwe a mabatire a lithiamu-ion ndi oyenera kwambiri pamakompyuta onyamulika, komamabatire a lithiamuKufunika kugwira ntchito mkati mwa malire ovoteledwa, kuyang'ana kwambiri magwiridwe antchito ndi chitetezo. Chifukwa chake, chitetezo cha ma batire a lithiamu-ion ndikofunikira komanso kofunikira. Kugwiritsa ntchito ntchito zosiyanasiyana zoteteza mabatire ndiko kupewa kupezeka kwa zolakwika monga kutulutsa OCD yochulukirapo komanso kutentha kwambiri kwa OT, komanso kulimbitsa chitetezo cha ma batire.
Dongosolo loyang'anira mabatire limayambitsa ukadaulo wolinganiza
Choyamba, tiyeni tikambirane za vuto lofala kwambiri la mabatire, kusinthasintha. Maselo amodzi akapanga paketi ya batire ya lithiamu, kutentha kumatha kuthawa komanso zinthu zosiyanasiyana zolakwika. Ili ndi vuto lomwe limabwera chifukwa cha kusagwirizana kwa paketi ya batire ya lithiamu. Maselo amodzi omwe amapanga paketi ya batire ya lithiamu sasinthasintha pa kuchuluka, kuyatsa, ndi kutulutsa mphamvu, ndipo "zotsatira za mbiya" zimapangitsa maselo amodzi omwe ali ndi makhalidwe oipa kukhudza magwiridwe antchito onse a paketi yonse ya batire ya lithiamu.
Ukadaulo wolinganiza mabatire a lithiamu umadziwika kuti ndi njira yabwino kwambiri yothetsera kusasinthasintha kwa mapaketi a mabatire a lithiamu. Kulinganiza ndikusintha mphamvu yamagetsi yeniyeni ya mabatire okhala ndi mphamvu zosiyanasiyana mwa kusintha mphamvu yamagetsi. Mphamvu yolinganiza ikakula, mphamvu yoletsa kufalikira kwa kusiyana kwa mphamvu yamagetsi ndikuletsa kuthawa kwa kutentha, komanso kusinthasintha bwino kwa mphamvu yamagetsi.paketi ya batri ya lithiamu.
Izi ndi zosiyana ndi zoteteza zosavuta kwambiri zochokera ku hardware. Choteteza batire ya lithiamu chingakhale choteteza mphamvu yowonjezereka kapena choteteza chapamwamba chomwe chingayankhe ku undervoltage, vuto la kutentha kapena vuto la current. Kawirikawiri, IC yoyang'anira batire pamlingo wa lithiamu batire monitor ndi gauge yamafuta ingapereke ntchito yolinganiza batire ya lithiamu. Chowunikira batire ya lithiamu chimapereka ntchito yolinganiza batire ya lithiamu ndipo chimaphatikizaponso ntchito yoteteza IC yokhala ndi ma configurability apamwamba. Chowunikira mafuta chili ndi kuphatikiza kwakukulu, kuphatikiza ntchito ya chowunikira batire ya lithiamu, ndipo chimagwirizanitsa ma algorithms apamwamba owunikira pamaziko ake.
Komabe, ma IC ena oteteza mabatire a lithiamu tsopano amakhalanso ndi ntchito zowongolera mabatire a lithiamu kudzera mu ma FET ophatikizidwa, omwe amatha kutulutsa mabatire okhala ndi mphamvu zambiri panthawi yochaja ndikusunga mabatire okhala ndi mphamvu zochepa nthawi imodzi, potero amawongolera mphamvu.paketi ya batri ya lithiamuKuwonjezera pa kukhazikitsa ntchito zonse zoteteza magetsi, mphamvu zamagetsi, ndi kutentha, ma IC oteteza mabatire akuyambanso kuyambitsa ntchito zolinganiza kuti zikwaniritse zosowa za chitetezo cha mabatire angapo.
Kuchokera ku chitetezo choyamba mpaka chitetezo chachiwiri
Kuchokera ku chitetezo choyamba mpaka chitetezo chachiwiri
Chitetezo chofunikira kwambiri ndi chitetezo cha overvoltage. Ma IC onse oteteza mabatire a lithiamu amapereka chitetezo cha overvoltage malinga ndi milingo yosiyanasiyana yotetezera. Pachifukwa ichi, ena amapereka chitetezo cha overvoltage komanso discharge overcurrent, ndipo ena amapereka chitetezo cha overvoltage komanso discharge overcurrent komanso kutentha kwambiri. Pa mabatire ena a lithiamu okhala ndi maselo ambiri, chitetezo ichi sichikwanira kukwaniritsa zosowa za batire ya lithiamu. Pakadali pano, IC yoteteza batire ya lithiamu yokhala ndi ntchito yolinganiza yokha ya lithiamu batire ikufunika.
Chitetezo ichi cha IC ndi cha chitetezo chachikulu, chomwe chimayang'anira mphamvu ndi kutulutsa ma FET kuti ayankhe mitundu yosiyanasiyana ya chitetezo cha zolakwika. Kulinganiza kumeneku kungathetse vuto la kutentha kwa mpweya.paketi ya batri ya lithiamubwino kwambiri. Kuchuluka kwa kutentha mu batire imodzi ya lithiamu kudzawononga chosinthira cha batire ya lithiamu ndi zotsutsana nazo. Kulinganiza batire ya lithiamu kumalola batire iliyonse ya lithiamu yopanda vuto mu batire ya lithiamu kukhala yofanana ndi mabatire ena omwe ali ndi vuto, zomwe zimachepetsa chiopsezo cha kutentha.
Pakadali pano, pali njira ziwiri zokwaniritsira kulinganiza kwa batri ya lithiamu: kulinganiza kogwira ntchito ndi kulinganiza kosachita zinthu. Kulinganiza kogwira ntchito ndi kusamutsa mphamvu kapena chaji kuchokera ku mabatire amphamvu/apamwamba a SOC kupita ku mabatire otsika a SOC. Kulinganiza kosachita zinthu ndi kugwiritsa ntchito zotsutsana kuti mugwiritse ntchito mphamvu ya mabatire amphamvu kapena amphamvu kuti mukwaniritse cholinga chochepetsa kusiyana pakati pa mabatire osiyanasiyana. Kulinganiza kosachita zinthu kumawononga mphamvu zambiri komanso kuopsa kwa kutentha. Poyerekeza, kulinganiza kogwira ntchito ndi kothandiza kwambiri, koma njira yowongolera ndi yovuta kwambiri.
Kuyambira pa chitetezo choyamba mpaka chitetezo chachiwiri, makina a batri ya lithiamu amafunika kukhala ndi chowunikira batri ya lithiamu kapena choyezera mafuta kuti apeze chitetezo chachiwiri. Ngakhale chitetezo choyamba chingagwiritse ntchito ma algorithms anzeru oyezera batri popanda kulamulira kwa MCU, chitetezo chachiwiri chimayenera kutumiza magetsi ndi magetsi a batri ya lithiamu ku MCU kuti apange zisankho pamlingo wa dongosolo. Ma monitor a batri ya lithiamu kapena ma gauge amafuta kwenikweni amakhala ndi ntchito zoyezera batri.
Mapeto
Kupatula ma monitor a batri kapena ma gauge amafuta omwe amapereka ntchito zowongolera batri, ma IC oteteza omwe amapereka chitetezo choyambirira samangokhala chitetezo choyambira monga overvoltage. Chifukwa cha kuchuluka kwa kugwiritsa ntchito ma multi-cell.mabatire a lithiamuMa batire akuluakulu amakhala ndi zofunikira zambiri pa chitetezo cha ma IC, ndipo kuyambitsa ntchito zolinganiza ndikofunikira kwambiri.
Kulinganiza zinthu kuli ngati mtundu wina wa kukonza. Kulipiritsa kulikonse ndi kutulutsa zinthu kumakhala ndi ndalama zochepa zolipirira kuti zigwirizane ndi kusiyana pakati pa mabatire. Komabe, ngati selo ya batire kapena paketi ya batire yokha ili ndi zolakwika pa khalidwe, chitetezo ndi kulinganiza zinthu sikungawonjezere ubwino wa paketi ya batire, ndipo si kiyi yofunikira kwambiri.
Ngati muli ndi mafunso kapena mukufuna kudziwa zambiri, chonde musazengereze kutifunsatitumizireni uthenga.
Pempho la Mtengo:
Jacqueline:jacqueline@heltec-energy.com/ +86 185 8375 6538
Sucre:sucre@heltec-bms.com/ +86 136 8844 2313
Nancy:nancy@heltec-energy.com/ +86 184 8223 7713
Nthawi yotumizira: Okutobala-21-2024