Zida za batri ya lithiamu zili ndi zinthu zina zomwe zimalepheretsa kuti zisachuluke, kutha-kutulutsidwa, kutha-zamakono, zofupikitsa, ndi zolipitsidwa ndi kutulutsidwa pa kutentha kwambiri komanso kutsika kwambiri.Chifukwa chake, paketi ya batri ya lithiamu nthawi zonse imatsagana ndi BMS yosakhwima.BMS imadziwikanso kutiBattery Management Systembatire.Management System, yomwe imatchedwanso chitetezo board.
BMS ntchito
(1) Kuzindikira ndi kuyeza kwake ndikuzindikira momwe batire ilili
Ichi ndi ntchito yoyambira yaBMS, kuphatikizapo kuyeza ndi kuwerengera kwa zizindikiro zina, kuphatikizapo voteji, panopa, kutentha, mphamvu, SOC (state of charge), SOH (state of health), SOP (state of power), SOE (state of charge), mphamvu).
SOC imatha kumveka kuti ndi mphamvu zingati zomwe zatsala mu batri, ndipo mtengo wake uli pakati pa 0-100%.Ichi ndiye chofunikira kwambiri mu BMS;SOH imatanthawuza za thanzi la batri (kapena kuchuluka kwa kuwonongeka kwa batri), yomwe ndi mphamvu yeniyeni ya batri yamakono.Poyerekeza ndi mphamvu yoyesedwa, pamene SOH ili pansi kuposa 80%, batire silingagwiritsidwe ntchito pamalo opangira mphamvu.
(2) Mantha ndi chitetezo
Pakachitika zachilendo mu batire, BMS imatha kuchenjeza nsanja kuti iteteze batire ndikuchitapo kanthu.Panthawi imodzimodziyo, chidziwitso chodzidzimutsa cha alamu chidzatumizidwa ku nsanja yowunikira ndi kuyang'anira ndi kupanga magawo osiyanasiyana a chidziwitso cha alamu.
Mwachitsanzo, kutentha kukakhala kotentha kwambiri, BMS imadula mwachindunji chiwongolero ndi kutulutsa dera, kuteteza kutentha kwambiri, ndikutumiza alamu kumbuyo.
Mabatire a lithiamu azipereka makamaka machenjezo pazifukwa izi:
Kuchulukirachulukira: gawo limodzi latha-voteji, mphamvu yonse yatha-voltage, kuthamangitsa-panopa;
Kutulutsa mochulukira: gawo limodzi pansi-voteji, voteji yonse pansi-voltage, kutulutsa kwathunthu-panopa;
Kutentha: Kutentha kwapakati pa batri ndipamwamba kwambiri, kutentha kwapakati ndipamwamba kwambiri, kutentha kwa MOS ndikokwera kwambiri, kutentha kwapakati pa batri ndikotsika kwambiri, ndi kutentha kozungulira kumakhala kochepa kwambiri;
Mkhalidwe: kumizidwa m'madzi, kugundana, kutembenuka, etc.
(3) Kusamalira moyenera
Kufunika kwakasamalidwe koyenerazimachokera ku kusagwirizana pakupanga ndi kugwiritsa ntchito batri.
Kuchokera pamawonedwe opanga, batire iliyonse imakhala ndi moyo wake komanso mawonekedwe ake.Palibe mabatire awiri omwe ali ofanana ndendende.Chifukwa cha kusagwirizana kwa olekanitsa, cathodes, anodes ndi zipangizo zina, mphamvu za mabatire osiyanasiyana sizingakhale zogwirizana.Mwachitsanzo, zizindikiro zofananira za kusiyana kwa voteji, kukana kwamkati, ndi zina za selo iliyonse ya batri yomwe imapanga paketi ya batri ya 48V / 20AH imasiyana mumtundu wina.
Malinga ndi kagwiritsidwe ntchito, njira ya electrochemical reaction singakhale yofananira pakuyitanitsa ndi kutulutsa batire.Ngakhale atakhala paketi yomweyo ya batri, kuchuluka kwa batire ndi kutulutsa mphamvu kudzakhala kosiyana chifukwa cha kutentha kosiyanasiyana ndi madigiri akugundana, zomwe zimapangitsa kuti ma cell a batri asagwirizane.
Chifukwa chake, batire imafunikira kusanja kwapang'onopang'ono komanso kugwirizanitsa mwachangu.Ndiko kukhazikitsa magawo awiri oyambira ndi kutha kufananiza: mwachitsanzo, mu gulu la mabatire, kufananiza kumayambika pamene kusiyana pakati pa mtengo wamagetsi wamagetsi ndi pafupifupi voteji ya gulu ikufika 50mV, ndipo kufananiza kumatha. ku 5mv.
(4) Kulankhulana ndi kuika
BMS ili ndi zosiyanakulumikizana module, yomwe imayang'anira kutumiza kwa data ndi kuyika batri.Ikhoza kutumiza deta yofunikira yomwe imamveka ndikuyesa ku nsanja yoyendetsera ntchito mu nthawi yeniyeni.
Nthawi yotumiza: Nov-07-2023