A LiFePO4 BMS (Pūnaha Whakahaere Pūhiko)Ko te papa hikohiko tēnei e aroturuki ana, e tiaki ana, e whakataurite ana hoki i te pākahiko lithium rino phosphate (LiFePO4). Kei waenganui i ngā pūtau pākahiko me te toenga o te pūnaha hiko, e ine tonu ana i te ngaohiko, te iahiko, me te pāmahana kia mau tonu ai te mahi a ia pūtau i roto i te awhe haumaru.

Ki te kore he BMS, kāore he parepare ā-roto o te kete LiFePO4 hei ārai i te utu nui rawa, te tukunga nui rawa, ngā ara iahiko poto, te kore taurite o te pūtau rānei — ka taea e ēnei te whakapoto i te roa o te ora o te kete, te hanga rānei i tētahi tūponotanga haumaru i roto i te wā kino rawa atu. Koinei te take e tukuna ai te nuinga o ngā kete LiFePO4 e hokona ana mō te rokiroki pūngao rā, ngā EV, te whakamahinga moana, ngā RV, ngā hiko tārua rānei me tētahi BMS motuhake, kaua ki te whakawhirinaki ki te rihi hiko, ki te inverter rānei anake.

He aha i tino hiahia ai ngā pākahiko LiFePO4 ki tētahi BMS

He kaha ake te pumau o ngā pūtau LiFePO4 ki te wera i ērā atu matū lithium pērā i te NCM (nickel cobalt manganese) me te NCA (nickel cobalt konumohe), he mea e whakamahia whānuitia ana mō te rokiroki tūmau me te maha o ngā tono nekenekehanga. Engari ko te "pūmau ake" ehara i te mea "kāore he whakahaere e hiahiatia ana." E toru tonu ngā raruraru e pā ana ki te kete LiFePO4 maha-pūtau kua hangaia mō te BMS:

• Te nekehanga ngaohiko pūtau.Ahakoa ngā pūtau o te puranga whakaputa kotahi, kāore e pakeke haere i te āhua ōrite. I roto i ngā rau huringa, ka nui haere ngā rerekētanga hanga iti hei āputa hiko nui i waenga i ngā pūtau — ko te raru tonu o te ara iahiko taurite kua hangaia hei whakatika.
• Pīkoi tukunga papatahi.He tino papatahi te pihi ngaohiko o LiFePO4 puta noa i te nuinga o tōna āhua utu, ā, he uaua ki te whakatau tata i te kaha e toe ana mai i te ngaohiko anake. Mā te BMS me te tatau coulomb — te whai i te nui o te iahiko e rere ana ki roto, ki waho hoki i te kete i roto i te wā, kaua ki te whakatau tata mai i te ngaohiko anake — ka hoatu he pānui āhua utu tika ake.
• He matapihi whaiti mō te whakahaere haumaru i ngā pito rawa.He ngāwari te mahi a ngā pūtau LiFePO4 i waenganui o te awhe utu engari me tapahi tonu i te utunga katoa me te tukunga hohonu kia kore ai e ngaro te kaha mō te wā roa.

He aha ngā mea e tiakina ana e te LiFePO4 BMS?

Ka taea e te BMS kua tohua tika mō ngā kete pākahiko lithium te whakahaere i ngā mahi tiaki e whai ake nei:

1. Te tiaki i te utu nui rawa— ka momotu i te utunga ina tae tetahi pūtau ki tōna rohe ngaohiko o runga
2. Te parenga ki te tukunga nui rawa— ka tapahia te kawenga i mua i te hekenga o te ngaohiko pūtau kia iti rawa hei whakararu i te kino tuturu
3. Te parenga iahiko nui / te parenga iahiko poto— ka whakamutu i te ara iahiko mēnā ka nui ake te iahiko i te paepae kua whakatauria
4. Te parenga i te pāmahana nui— ka aukati i te utu, i te tukunga rānei i waho o te matapihi pāmahana haumaru
5. Taurite pūtau— ka whakataurite i te ngaohiko puta noa i ngā pūtau katoa i roto i te aho raupapa, ahakoa he kore mahi, he kore mahi rānei

Taurite Kaha me te Taurite Āhuakore i roto i te LiFePO4 BMS

Taurite kore mahika tukuna te kaha nui mai i ngā pūtau ngaohiko teitei hei wera mā roto i te ātete tae noa ki te wā e mau ai te toenga o te kete. He māmā noa iho, he iti te utu, ā, he rawaka mō ngā kete iti ake, mō ngā tono rānei kāore i te maha ngā huringa utu.

Taurite hoheka whakawhiti i te pūngao mai i ngā pūtau hiko teitei ki ngā pūtau hiko iti, kaua e tukuna hei wera. He pai ake te mahi, he iti ake te wera para, ā, ko te tikanga ka tere ake te taurite me te pai ake o te hauora o te kete mō te wā roa — he mea nui ake tēnei nā te mea he nui ake te rahi o te kete, te maha o ngā pūtau, me te auau o te huringa (ngā kete ESS nui, te rokiroki hiko hiko o ia rā, ngā kete EV kaha nui).

Mō ngā kete iti, iti te huringa, he nui te taurite kore mahi. Mō ngā pūnaha LiFePO4 nui ake, he nui rānei te huringa, he pai te utu tāpiri mō te taurite hohe.

Me pēhea te whiriwhiri i te LiFePO4 BMS tika

Ina whakatauritea he BMS ki ngā pākahiko lithium, e whā ngā āhuatanga e whakatau ana mēnā ka uru ki tō pūnaha:

1. Te maha o ngā pūtau (S-count).Me tino ōrite te BMS ki te whirihoranga raupapa o tō kete — he BMS 4S mō te kete 12V, 8S mō te 24V, 16S mō te 48V, me ētahi atu (i runga i te ngaohiko pūtau ingoa ~3.2V a LiFePO4). Ko te tatau-S hē tētahi o ngā tino take o te kore hototahi o te BMS.
2. Te whakatauranga o te au tonu me te au teitei.Whakawhānuihia te rahi o te BMS ki tō kaha kume tino nui, kaua ki te kaha kume noa, ā, waiho he wāhi māhunga — ka tere ake te wera me te tawhito o te BMS e rere tonu ana i tōna tuanui o nāianei.
3. Momo taurite me te ia taurite.E ai ki te kōrero i runga ake nei, whakatauhia i waenga i te taurite kore mahi me te taurite hohe i runga i te rahi o te kete me te auau huringa, ka tirohia te iahiko taurite (mA) — ko te iahiko taurite teitei ake ka tere ake te taurite i runga i ngā kete nunui.
4. Te kawa whakawhitiwhiti kōrero.Mena me kōrero te BMS ki tētahi inverter, ki tētahi taupānga aroturuki, ki te whatunga CAN rānei o tētahi waka, me whakaū kei te tautoko i te kawa tika — ko te RS485, te pahi CAN, te UART, te Nihokikorangi rānei — i mua i te hoko, kaua i muri i te tāutanga.

LiFePO4 BMS mā te Ngaohiko: Ngā Pūnaha 12V, 24V, me te 48V/51.2V

Ko ngā papa LiFePO4 BMS e tohua ana e te ngaohiko pūnaha ingoa, e rite ana ki te maha o ngā pūtau:

• Ngā pūnaha 12V (4S):te whirihoranga tino noa mō te hiko kawe, ngā tatūnga iti o te rā, me ngā whakakapinga pākahiko taka-mai
• Ngā pūnaha 24V (8S):he mea noa i roto i ngā tono moana, RV, me ngā tono pūngao rā rahi-waenga
• Ngā pūnaha 48V / 51.2V (16S):te akomanga ngaohiko tino noa mō te rokiroki hiko kāinga, ngā whakaurunga pūngao rā nui ake, me te nuinga o ngā whata ESS arumoni

I ahu mai te tatau pūtau i te ngaohiko ā-pūtau o LiFePO4 ~3.2V — 4 × 3.2V ≈ 12.8V, 8 × 3.2V ≈ 25.6V, 16 × 3.2V ≈ 51.2V.

Ko ngā pūnaha hiko teitei ake te ngaohiko e hiahia ana kia nui ake te aro ki te tautoko i ngā kawa whakawhitiwhiti kōrero, nā te mea he nui ake te tūponotanga ka honoa ki tētahi inverter, ki tētahi pūnaha whakahaere pūngao whānui rānei e hiahia ana ki ngā raraunga wā-tūturu mai i te BMS.

Ngā Pātai Auau

Q1Me whai BMS te pākahiko LiFePO4?

Āe. Ahakoa he pumau ake te matū LiFePO4 i te pāmahana i ērā atu matū lithium, me whai BMS tonu te kete maha-pūtau hei taurite i te pūtau, hei tiaki i te utu nui/te tukunga nui, me te aroturuki tika i te āhua o te utu. Mā te whakahaere i te kete LiFePO4 me te kore he BMS ka tangohia ēnei parenga katoa.

Q2He aha te rerekētanga i waenga i te LiFePO4 BMS me te lithium-ion BMS whānui?

He rite tonu ngā mahi tiaki matua, engari he rerekē te whakatakotoranga o ngā tapahi ngaohiko mō ia matū — he iti ake te awhe ngaohiko mō ia pūtau o LiFePO4 i ngā pūtau lithium-ion NCM/NMC, NCA rānei. Kaua te BMS i hangaia mō tētahi matū e whakamahia pērā i tētahi atu me te kore e whirihora anō i ngā paepae ngaohiko kia ōrite ki te pepa raraunga pūtau.

Q3He aha te amperage BMS e hiahiatia ana mō tētahi kete LiFePO4?

Tātaitia te whakatauranga o te au tonu o te BMS ki te kume tonu mōrahi tuturu o tō pūnaha, ā, whiriwhiria he tauira me te whakatauranga tihi/ngaru e pai ana ki te hipoki i ngā ngaru poto (te tīmatanga o te motuka, te ngaru inverter, me ētahi atu) me te kore e hinga.

Q4Me pēhea te tautuhi anō i tētahi LiFePO4 BMS?

Ka ora aunoa te nuinga o ngā waeine BMS ina kore te āhua o te hapa — hei tauira, ina hoki te ngaohiko ki te awhe haumaru i muri i te nui rawa o te utu, te nui rawa rānei o te tukunga. Ko ētahi tauira me hono anō ā-ringa te tauranga utu, tukunga rānei, me momotu/hono anō rānei i te kete mō te wā poto, hei whakakore i te hapa kua raka. Tirohia tonutia ngā tuhinga motuhake o te tauira BMS, nā te mea he rerekē te whanonga tautuhi i runga i te hoahoa.

Q5Ka taea e te kotahi BMS te mahi me ngā matū konukōre maha?

Ka taea te whirihora i ētahi tauira BMS puta noa i ngā matū — LiFePO4, NCM, LTO rānei (lithium titanate) — mā roto i ngā paepae ngaohiko whakarerekē, engari me whakarite tika tēnei mō te matū motuhake e whakamahia ana. Kaua e kiia he haumaru te BMS kua honoa mō te awhe ngaohiko o tētahi matū mō tētahi atu me te kore e whakaū i te whirihoranga i te tuatahi. Kāore e tautokohia tēnei e ngā tauira katoa o te mākete — tirohia te pepa raraunga o te BMS motuhake, kaua e whakaaro he tautoko maha-matū mā te taunoa.

Te Kōwhiri i tētahi LiFePO4 BMS mō tō Kaupapa

Ko te BMS tika e whakawhirinaki ana ki te ngaohiko o tō kete, te maha o ngā pūtau, te kukume iahiko, me te āhua o tana whakawhitiwhiti kōrero ki te toenga o tō pūnaha. Tukuna atu ēnei taipitopito e whā, ā, ka taea e te tīma hangarau o DALY te tūtohu i tētahi whirihoranga e ōrite ana: te maha o ngā ngaohiko/pūtau pūnaha (hei tauira, 12V/4S, 24V/8S, 48V/16S), ngā whakaritenga iahiko tonu me te iahiko pīka, te tono (rā/ESS, moana, RV, EV, forklift, me ētahi atu), me te kawa whakawhitiwhiti kōrero e hiahiatia ana (RS485, pahi CAN, UART, Nihokikorangi).

• Īmēra: dalybms@dalyelec.com
• Tūhuratia mā te kāwai: BMS Atamai · BMS Taurite Hohe · BMS Rokiroki Kāinga · BMS Auaha Teitei · BMS Rokiroki Pūngao RV