A Battery Management System (BMS)imagwira ntchito yofunikira pakuwonetsetsa kuti mabatire a lithiamu-ion akugwira ntchito motetezeka, kuphatikiza LFP ndi mabatire a ternary lithium (NCM/NCA). Cholinga chake chachikulu ndikuwunika ndikuwongolera magawo osiyanasiyana a batri, monga magetsi, kutentha, ndi zamakono, kuwonetsetsa kuti batire imagwira ntchito moyenera. BMS imatetezanso batire kuti lisapitirire, kutulutsidwa, kapena kugwira ntchito kunja kwa kutentha kwake komwe kuli koyenera. Mu mapaketi a batri okhala ndi ma cell angapo (zingwe za batri), BMS imayang'anira kusanja kwa ma cell. BMS ikalephera, batire imasiyidwa pachiwopsezo, ndipo zotsatira zake zimakhala zowopsa.
1. Kuchulutsa kapena Kuchulutsa
Chimodzi mwazofunikira kwambiri za BMSis kuletsa batri kuti lisachuluke kapena kuthamangitsidwa. Kuchulukirachulukira ndikowopsa kwambiri pamabatire amphamvu kwambiri ngati ternary lithium (NCM/NCA) chifukwa amatha kuthawa chifukwa cha kutentha. Izi zimachitika pamene mphamvu ya batri idutsa malire otetezeka, kutulutsa kutentha kwakukulu, komwe kungayambitse kuphulika kapena moto. Kuchulukirachulukira, kumbali ina, kumatha kuwononga ma cell, makamaka mkatiMabatire a LFP, yomwe imatha kutaya mphamvu ndikuwonetsa kusagwira bwino ntchito pambuyo potulutsa kwambiri. Mumitundu yonse iwiri, kulephera kwa BMS kuwongolera mphamvu yamagetsi panthawi yolipiritsa ndi kutulutsa kumatha kubweretsa kuwonongeka kosasinthika kwa paketi ya batri.
2. Kutentha Kwambiri ndi Kuthamangitsidwa Kwamatenthedwe
Mabatire a Ternary lithiamu (NCM/NCA) amakhudzidwa kwambiri ndi kutentha kwambiri, kuposa mabatire aLFP, omwe amadziwika kuti ndi okhazikika bwino. Komabe, mitundu yonse iwiri imafuna kusamala kwambiri kutentha. BMS yogwira ntchito imayang'anira kutentha kwa batri, kuwonetsetsa kuti imakhala pamalo otetezeka. Ngati BMS ilephera, kutenthedwa kungathe kuchitika, kumayambitsa njira yowopsa yotchedwa thermal runaway. Mu paketi ya batri yopangidwa ndi ma cell ambiri (zingwe za batri), kuthawa kwamafuta kumatha kufalikira mwachangu kuchokera ku selo imodzi kupita ku ina, zomwe zimabweretsa kulephera koopsa. Pamagetsi okwera kwambiri ngati magalimoto amagetsi, chiwopsezochi chimakulitsidwa chifukwa kuchuluka kwa mphamvu ndi kuchuluka kwa ma cell ndizokwera kwambiri, zomwe zimapangitsa kuti pakhale zovuta.
3. Kusalinganika Pakati pa Maselo a Battery
M'mapaketi a batri okhala ndi ma cell ambiri, makamaka omwe ali ndi ma voliyumu apamwamba kwambiri monga magalimoto amagetsi, kusanja voteji pakati pa ma cell ndikofunikira. BMS ili ndi udindo wowonetsetsa kuti ma cell onse mu paketi ali bwino. BMS ikalephera, ma cell ena akhoza kuchulukitsidwa pamene ena amakhalabe opanda ndalama. M'makina omwe ali ndi zingwe zambiri za batri, kusalinganika kumeneku sikungochepetsa mphamvu zonse komanso kumayambitsa ngozi. Ma cell ochulukitsidwa makamaka amakhala pachiwopsezo cha kutentha kwambiri, zomwe zingawapangitse kulephera mowopsa.
4. Kulephera kwa Mphamvu kapena Kuchepetsa Kuchita Bwino
Kulephera kwa BMS kungayambitse kuchepa kwachangu kapena kulephera kwathunthu kwa mphamvu. Popanda kuwongolera moyenera mphamvu yamagetsi, kutentha, ndi kusanja kwa ma cell, makina amatha kutseka kuti asawonongeke. M'mapulogalamu omwe zingwe za batri zamphamvu kwambiri zimakhudzidwa, monga magalimoto amagetsi kapena kusungirako mphamvu zamafakitale, izi zitha kupangitsa kuti mphamvu yadzidzidzi iwonongeke, zomwe zingayambitse zoopsa zachitetezo. Mwachitsanzo, ternary lithiamu batire paketi akhoza kutseka mosayembekezereka pamene galimoto yamagetsi ikuyenda, kupanga mikhalidwe yoopsa yoyendetsa.
Nthawi yotumiza: Sep-23-2024
