A LiFePO4 BMS (Tsarin Gudanar da Baturi)shine allon da'ira na lantarki wanda ke sa ido, karewa, da kuma daidaita fakitin batirin lithium iron phosphate (LiFePO4). Yana zaune tsakanin ƙwayoyin batirin da sauran tsarin wutar lantarki, yana auna ƙarfin lantarki, wutar lantarki, da zafin jiki akai-akai don kiyaye kowace ƙwayar halitta tana aiki a cikin iyaka mai aminci.

Ba tare da BMS ba, fakitin LiFePO4 ba shi da kariya a ciki daga caji fiye da kima, fitar da kaya fiye da kima, gajerun da'irori, ko rashin daidaiton ƙwayoyin halitta - kowanne daga cikinsu zai iya rage rayuwar fakitin ko kuma, a mafi munin yanayi, ya haifar da haɗarin aminci. Wannan shine dalilin da ya sa mafi yawan fakitin LiFePO4 da ake sayarwa a kasuwa don ajiyar hasken rana, EVs, amfani da ruwa, RVs, ko jirgin wutar lantarki mai ajiya tare da BMS na musamman maimakon dogaro da caja ko inverter kaɗai.

Me yasa batirin LiFePO4 ke buƙatar BMS musamman

Kwayoyin LiFePO4 sun fi sauran sinadarai na lithium ƙarfi a zahiri, kamar NCM (nickel cobalt manganese) ko NCA (nickel cobalt aluminum), wanda shine zaɓi da ake amfani da shi sosai don adanawa a tsaye da aikace-aikacen motsi da yawa. Amma "mafi karko" ba yana nufin "ba a buƙatar sarrafawa ba." Fakitin LiFePO4 mai ƙwayoyin halitta da yawa har yanzu yana fuskantar matsaloli guda uku da aka tsara musamman don magance su:

• Tasirin ƙarfin lantarki na sel.Ko da ƙwayoyin halitta daga rukuni ɗaya na samarwa ba sa tsufa iri ɗaya. Fiye da ɗaruruwan zagayowar, ƙananan bambance-bambancen masana'antu suna haɗuwa zuwa gibin wutar lantarki mai ma'ana tsakanin ƙwayoyin halitta - ainihin matsalar daidaita kewaye an tsara ta ne don gyarawa.
• Lanƙwasa mai faɗi.LiFePO4 yana da lanƙwasa mai faɗi a mafi yawan yanayin cajinsa, wanda hakan ke sa ya yi wuya a kimanta ƙarfin da ya rage daga ƙarfin lantarki kawai. BMS tare da ƙidayar coulomb - yana bin diddigin adadin wutar lantarki da ke gudana a ciki da wajen fakitin akan lokaci, maimakon kimantawa daga ƙarfin lantarki kawai - yana ba da ingantaccen karatun yanayin caji.
• Tagar aiki mai aminci mai kunkuntar a matuƙa.Kwayoyin LiFePO4 suna da haƙuri a tsakiyar kewayon cajin su amma har yanzu suna buƙatar yankewa mai ƙarfi a lokacin caji mai cikakken ƙarfi da kuma fitar da iska mai zurfi don guje wa asarar ƙarfin aiki na dogon lokaci.

Menene LiFePO4 BMS Ke Karewa Daga Gaske?

BMS da aka ƙayyade daidai don fakitin batirin lithium yana kula da waɗannan ayyukan kariya:

1. Kariyar caji fiye da kima- yana cire caji da zarar kowace wayar ta kai iyakar ƙarfinta na sama
2. Kariyar fitar da ruwa fiye da kima- yana rage nauyin kafin ƙarfin lantarki na tantanin halitta ya ragu sosai don haifar da lalacewa ta dindindin
3. Kariyar da ke wuce gona da iri / ta gajeriyar hanya- yana katse da'irar idan wutar lantarki ta wuce iyakar da aka ƙididdige
4. Kariyar zafi fiye da kima- dakatar da caji ko fitarwa a wajen taga mai lafiya
5. Daidaita tantanin halitta- yana daidaita ƙarfin lantarki a duk ƙwayoyin halitta a cikin jerin igiyoyi, ko dai a zahiri ko a zahiri

Daidaita Aiki vs. Daidaita Aiki a cikin LiFePO4 BMS

Daidaitawa mara aikiYana fitar da iskar da ta wuce kima daga ƙwayoyin lantarki masu ƙarfin lantarki a matsayin zafi ta hanyar resistor har sai sauran fakitin sun kama. Yana da sauƙi, araha, kuma ya isa ga ƙananan fakiti ko aikace-aikace inda ba kasafai ake samun zagayowar caji ba.

Daidaita aikiYana canja wurin makamashi daga ƙwayoyin lantarki masu ƙarfi zuwa ƙananan ƙwayoyin lantarki maimakon watsar da shi azaman zafi. Yana da inganci, yana samar da ƙarancin zafi na sharar gida, kuma yawanci yana haifar da daidaito cikin sauri da ingantaccen lafiyar fakitin na dogon lokaci - wanda ya fi mahimmanci yayin da girman fakitin, adadin ƙwayoyin halitta, da ƙaruwar mitar zagayowar (manyan fakitin ESS, ajiyar hasken rana mai hawa da sauka kowace rana, fakitin EV mai ƙarfin aiki).

Ga ƙananan fakiti masu ƙarancin lokaci, daidaiton aiki sau da yawa ya isa. Ga manyan tsarin LiFePO4 ko masu keke mai yawa, daidaiton aiki ya cancanci ƙarin kuɗin.

Yadda Ake Zaɓar LiFePO4 BMS Mai Dacewa

Idan aka kwatanta fakitin batirin lithium na BMS, bayanai guda huɗu suna tantance ko zai dace da tsarin ku:

1. Adadin ƙwayoyin halitta (ƙidayar S).Dole ne BMS ya dace da tsarin jerin fakitin ku daidai — BMS na 4S don fakitin 12V, 8S don 24V, 16S don 48V, da sauransu (bisa ga ƙarfin lantarki na sel na LiFePO4 na ~3.2V). Rashin daidaiton adadin S yana ɗaya daga cikin abubuwan da ke haifar da rashin jituwa tsakanin BMS.
2. Matsayin wutar lantarki mai ci gaba da kololuwa.Girman BMS zuwa ga ainihin zane naka, ba kawai zane na yau da kullun ba, kuma bar sararin samaniya - BMS da ke gudana a saman rufin halin yanzu koyaushe zai yi zafi kuma ya tsufa da sauri.
3. Nau'in daidaitawa da kuma ma'aunin wutar lantarki.Kamar yadda aka ambata a sama, yanke shawara tsakanin daidaitawar aiki da ta aiki bisa ga girman fakitin da kuma mitar zagayowar, kuma duba ma'aunin wutar lantarki (mA) - mafi girman ma'aunin wutar lantarki yana nufin daidaitawa cikin sauri akan manyan fakiti.
4. Yarjejeniyar sadarwa.Idan BMS yana buƙatar yin magana da inverter, manhajar sa ido, ko hanyar sadarwa ta CAN ta abin hawa, tabbatar da cewa tana goyon bayan yarjejeniyar da ta dace - galibi RS485, CAN bas, UART, ko Bluetooth - kafin siye, ba bayan shigarwa ba.

LiFePO4 BMS ta hanyar ƙarfin lantarki: Tsarin 12V, 24V, da 48V/51.2V

Allon LiFePO4 BMS yawanci ana ƙayyade su ta hanyar ƙarfin lantarki na tsarin da ba na yau da kullun ba, wanda ya yi daidai da takamaiman adadin ƙwayoyin halitta:

• Tsarin 12V (4S):Tsarin da aka fi sani don wutar lantarki mai ɗaukuwa, ƙananan saitunan hasken rana, da maye gurbin batirin da aka sauke
• Tsarin 24V (8S):wanda aka saba amfani da shi a fannin amfani da hasken rana a cikin ruwa, RV, da kuma matsakaicin girma
• Tsarin 48V / 51.2V (16S):mafi yawan nau'in ƙarfin lantarki don ajiyar makamashin gida, manyan shigarwar hasken rana, da yawancin rakodin ESS na kasuwanci

An samo adadin ƙwayoyin halitta daga ƙarfin lantarki na LiFePO4 na ~3.2V na kowace ƙwayar halitta — 4 × 3.2V ≈ 12.8V, 8 × 3.2V ≈ 25.6V, 16 × 3.2V ≈ 51.2V.

Tsarin wutar lantarki mai ƙarfi gabaɗaya yana buƙatar ƙarin kulawa ga tallafin hanyoyin sadarwa, tunda akwai yuwuwar haɗa su da inverter ko tsarin sarrafa makamashi mai faɗi wanda ke buƙatar bayanai na ainihin lokaci daga BMS.

Tambayoyin da Ake Yawan Yi

Q1Shin batirin LiFePO4 yana buƙatar BMS?

Eh. Ko da yake sinadaran LiFePO4 sun fi sauran sinadarai na lithium ƙarfi a fannin zafi, fakitin ƙwayoyin halitta da yawa har yanzu yana buƙatar BMS don daidaita ƙwayoyin halitta, kariyar caji/fitar da su fiye da kima, da kuma bin diddigin yanayin caji daidai. Gudanar da fakitin LiFePO4 ba tare da BMS ba yana kawar da duk waɗannan kariya.

Q2Menene bambanci tsakanin LiFePO4 BMS da BMS na lithium-ion na gabaɗaya?

Ayyukan kariya na asali iri ɗaya ne, amma an saita yankewar wutar lantarki daban-daban ga kowane sinadarai - kewayon ƙarfin lantarki na kowace tantanin halitta na LiFePO4 ya yi ƙasa da ƙwayoyin lithium-ion na NCM/NMC ko NCA. Bai kamata a yi amfani da BMS da aka gina don wani sinadarai kamar yadda yake akan wani ba tare da sake saita iyakokin wutar lantarki don dacewa da takardar bayanai na tantanin halitta ba.

Q3Wane BMS mai ƙarfin amperage nake buƙata don fakitin LiFePO4?

Daidaita ƙimar BMS mai ci gaba da aiki da kuma matsakaicin ƙarfin aiki na tsarin ku, sannan ku zaɓi samfurin da ke da ƙimar kololuwa/ƙarfin aiki wanda ke rufe ƙwanƙwasa na ɗan lokaci (fara motar, ƙarfin inverter, da sauransu) cikin sauƙi ba tare da yin tuntuɓe ba.

Q4Ta yaya zan sake saita LiFePO4 BMS?

Yawancin na'urorin BMS suna murmurewa ta atomatik da zarar yanayin matsalar ya warke - misali, da zarar ƙarfin lantarki ya dawo zuwa wani wuri mai aminci bayan an yi caji fiye da kima ko kuma an yi watsi da shi fiye da kima. Wasu samfuran kuma suna buƙatar sake haɗa caji ko tashar fitarwa da hannu, ko kuma ɗan gajeren cirewa/sake haɗawa da fakitin, don share matsalar da aka makala. Kullum a duba takaddun takamaiman samfurin BMS, tunda yanayin sake saitawa ya bambanta dangane da ƙira.

Q5Shin BMS ɗaya zai iya aiki tare da sinadarai da yawa na lithium?

Ana iya daidaita wasu samfuran BMS a cikin masana'antun sinadarai - LiFePO4, NCM, ko LTO (lithium titanate) - ta hanyar iyakokin ƙarfin lantarki masu daidaitawa, amma dole ne a saita wannan daidai don takamaiman sinadaran da ake amfani da su. Bai kamata a ɗauki BMS mai tauri don kewayon ƙarfin lantarki na sinadarai ɗaya a matsayin amintacce ga wani ba tare da tabbatar da daidaitawa da farko ba. Ba kowane samfuri a kasuwa yana goyon bayan wannan ba - duba takamaiman takardar bayanai ta BMS maimakon ɗaukar tallafin sinadarai da yawa ta hanyar tsoho.

Zaɓar LiFePO4 BMS don Aikinku

BMS mai kyau ya dogara ne da ƙarfin fakitin ku, adadin ƙwayoyin halitta, zana wutar lantarki, da kuma yadda yake buƙatar sadarwa da sauran tsarin ku. Raba waɗannan cikakkun bayanai guda huɗu kuma ƙungiyar fasaha ta DALY za ta iya ba da shawarar daidaitawar daidaitawa: ƙimar ƙarfin lantarki/ƙwayar halitta (misali 12V/4S, 24V/8S, 48V/16S), buƙatun wutar lantarki na ci gaba da kololuwa, aikace-aikacen (rana/ESS, marine, RV, EV, forklift, da sauransu), da kuma yarjejeniyar sadarwa da ake buƙata (RS485, bas ɗin CAN, UART, Bluetooth).

• Imel: dalybms@dalyelec.com
• Bincika ta rukuni: BMS Mai Wayo · BMS Mai Daidaita Aiki · BMS na Ajiya a Gida · Babban BMS na Yanzu · BMS na Ma'ajiyar Makamashi ta RV