BMS kɔrɔ ye mun ye?
Batiriw ɲɛnabɔli siraA ɲɛfɔra
An tun bɛ ɲini ka DALY BMS unitw kulu dɔ san san 2021. A sɔngɔ tun ka ɲi kosɛbɛ, a specs lajɛra papier kan, ani feerekɛla ye layidu ta ko CAN bus bɛ bɛn an ka Victron inverters ma. Dɔgɔkun saba kɛlen kɔ ka bila AGV piloti kurunba dɔ kan, an y’a ye ko unitéw bɛ seliw balansi dɔrɔn chargement waati la, u tɛ lafiɲɛ waati la. O porogramu tun be bin tuma bɛɛ. Bluetooth tun ka kan ka segin ka fara ɲɔgɔn kan tile damadɔ o tile damadɔ. An labanna ka unit 24 bɛɛ falen JBD pankurunw nɔ na, o musaka ye siɲɛ fila ye.
O ko kɛlen ye fɛn dɔ kalan an na spec sheets tɛ min fɔ abada: BMS jogo bɛ jira kunnafoni fitininw na minnu bɛ kalo caman ta ka sɔrɔ ka sɔrɔ.
O la sa, BMS ye mun ye, Tiɲɛ na?
Kalan gafe jaabi
a Batiri ɲɛnabɔli sira bɛ selilɛriw ka wulicogo kɔlɔsi, ka kuran bolicogo ɲɛnabɔ, ka funteni jateminɛ, ani ka litiyamu selilɛriw tanga cogoyaw ma minnu bɛ tasuma bila walima ka mɔgɔ faga joona.
Jaabi min bɛ se ka kɛ
o ye yɔrɔ ye min b’a jira n’i ka batiri min bɛ $15.000 bɔ, o bɛ san 4 walima san 12 kɛ. Hali n’i ka forokili-kurunw ye funteni-ko kelen sɔrɔ walima zeru. Ni aw ka garanti ɲininiw tora 1% jukɔrɔ walima ka wuli ka tɛmɛ 3% kan.
Polinovel la, an ye garanti kunnafoniw lajɛ BMS feerela 8 kɔnɔ kabini san 2018. Jatew bɛ maana jɛlen fɔ.
Garanti ɲinini hakɛw ka kɛɲɛ ni Supplier Tier ye (2018-2022, 3.247 units)
| Fournisseur ka Catégorie | Kalo 24 Dɛsɛ hakɛ | Dɛsɛ fɔlɔ cogoya | Kɔlɔsiliw |
|---|---|---|---|
| Orion, REC, ani a ka baara | 0.4-0.7% | Sensor drift (Drift) ye | A bɛ bɛn ɲɔgɔn ma batɛmuw bɛɛ kɔnɔ |
| JK (JIKONG), JBD ye baara kɛ | 0.8-1.2% | Firmware bugs (u bɛ se ka labɛn) . | Application dɛmɛni barikama |
| Jamana kɔnɔ Marka A | 2.1% | Balan ka kafoda | A ɲɛnabɔra san 2023 batchw kɔnɔ |
| Jamana kɔnɔ Marka B | 3.1% | MOSFET ka dɛsɛw | Jogoɲumanya kɔlɔsili koɲɛw |
| DALY ye | 3.8% | Ko caman bɛ yen | Aw ye sɛbɛnniw lajɛ jukɔrɔ |
DALY ka ko ka kan ni ɲɛfɔli ye. U ka dasiri datugulen dilancogo bɛ baara kɛ kosɛbɛ tiɲɛ na jiko la. Nka u ka appli bɛ ni dolow 1,7 ye kun ɲuman na. An ye unitw sɔrɔ minnu bɛ ni izini labɛncogo filiw ye. U ka "100A discharge" hakɛ kɔrɔ ka teli ka kɛ 50A chargement capacity ye, mɔgɔ si t'o fɔ i ye ka kɔn o ɲɛ. Kunnafonidila dɔ y’o sɔrɔ u ka chargement infrastructure ma se ka baara kɛcogo makɔnɔnen di kɔfɛ.
Walasa ka tiɲɛ fɔ, DALY unitw bɛ baara kɛ ka ɲɛ baarakɛnafolo porozɛw la, yɔrɔ minnu na i mago tɛna kɛ fɛɛrɛko dɛmɛni na. I kana dɛmɛ makɔnɔ dɔrɔn ni fɛn dɔ ma ɲɛ.
Sɔrɔko min nafa ka bon tiɲɛ na
Bɛɛ bɛ "143% ROI ɲɛtaa" jate fɔ ka bɔ electravehicles.com kan. An y’o jateden suguw ye an yɛrɛ ka baarakɛyɔrɔw la, nka jatebɔ tɛ tilennen ye.
An b’a ɲɛfɔ cogo min na sannifeere jɛkuluw ye, o filɛ nin ye:
Musow ka musakaw suma ɲɔgɔn na: AGV Fleet 50-Unit San 8 kɔnɔ
| Muɲu suguya | Budget BMS Sugandili | BMS Sugandili ɲuman |
|---|---|---|
| BMS musaka fɔlɔ (unit kelen) . | $180 | $650 |
| Fleet BMS ka wari bilali | $9,000 | $32,500 |
| Batiri pake musaka (48V 100Ah LFP) . | $45,000 × 50 = $2.25M | Hali |
| Paki caman cili makɔnɔnen | San 4-5 (flot dafalen) . | San 10+ (yɔrɔ dɔ) . |
| Yɛlɛma musaka bɛ san 5nan na | ~$2.0M (sɔngɔ jiginni) | $0 |
| Baarakɛbaliya waati ko minnu ma labɛn | 12-18 ye san kɔnɔ | 2-4 ye san kɔnɔ |
| Baarakɛbaliya musaka ($800/ko kɛlen) . | $76,800-$115,200 | $12,800-$25,600 |
Danfara min bɛ BMS ka wari bilali la, o ye dɔrɔmɛ 23.500 ye, o bɛ i n’a fɔ a ka bon fo n’i ye batiri caman cili cycle kelen jateminɛ. An ye kiliyanw bila ka sɔsɔli kɛ nin ko in kan dɔgɔkun caman kɔnɔ, o kɔfɛ, u ye an wele san fila o kɔfɛ k’a ɲini ka BMS unit ɲumanw labɛn kokura. O waati la, selilu dɔw farala ɲɔgɔn kan kaban fo u tɛ se ka kɛnɛya.
Kɛrɛnkɛrɛnnenya la, porozɛ dɔ ye fɛn caman Changé an bɛ o barow kɛcogo Changé. Ohio mara la, fɛnmarayɔrɔ baarakɛla dɔ y’a sinsin baarakɛnafolo sugandilen kan hali n’an ye laadilikanw di. Kalo tan ni segin o kɔfɛ, u ye funteni-ko dɔ sɔrɔ pake kelen kɔnɔ. Mɔgɔ si ma jogin, nka asiransi sɛgɛsɛgɛli ni yɔrɔ jɔli waati min kɛra, o musaka ka ca ni batiri fɔlɔ bɛɛ ye. An tɛ se ka sosiyete tɔgɔ tila ɲɔgɔn na, nka ko kɛlen in kunnafoni ye foroba sɛbɛn ye sigida tasumako ɲɛmɔgɔ ka biro sababu fɛ.
Technical Specs: Fɛn min ka kan ka ɲini tiɲɛ na
BMS spec sɛbɛn fanba bɛ voltage tiɲɛni jate "±0,5%" walima "±10mV." U fila bɛɛ mankan bɛ tigitigi. U fila si t’a fɔ i ye min nafa ka bon.
Ɲininkali nafamaba min bɛ LiFePO4 baarakɛcogo la: yala sistɛmu bɛ tiɲɛni mara 3,2-3.35V plateau mara bɛɛ kɔnɔ wa? O yɔrɔ de la LFP selilɛriw bɛ u ka baarakɛwaati 80% kɛ, wa voltage-ni-SOC jɛɲɔgɔnya bɛ surunya fla la. 5mV sumani fili min bɛ nin yɔrɔ in na, o bɛ se ka 8% SOC jateminɛ fili lase. O de ye danfara ye k’a miiri ko seko 30% b’i bolo ani ka 22% sɔrɔ tiɲɛ na.
An bɛ 0,3% tiɲɛni ɲɛfɔ an ka AGV baarakɛminɛnw na, o musaka bɛ se 15% ɲɔgɔn ma ka tɛmɛ 0,5% sigida jɔnjɔnw kan. Jagokɛcogo in nafa ka bon baarakɛcogo la minnu mago bɛ yɔrɔko fɔli la min bɛ se ka da a kan.
An bɛ fɛn minnu sɛgɛsɛgɛ tiɲɛ na (An tɛ sɔn dɔrɔn ka bɔ Datasheets kɔnɔ)
| Paramɛtiri | Datasheet (Dɔnniyasɛbɛn) ka ɲinini | An bɛ fɛn minnu kɔrɔbɔ | Mun na a nafa ka bon |
|---|---|---|---|
| Voltage (voltaji) tiɲɛni | ±0,5% ni degere 25 ye | ±? ni degere -10 ani degere 45 ye | Warehouse temps bɛ danfara |
| Balancement (balance) min bɛ kɛ sisan | "Ebalancement active" ye. | mA sumanikɛlan lakika | Mɔgɔ caman b'a fɔ ko "active" ni 40mA passive ye |
| Sisan jatebɔ | 100A bɛ taa ɲɛ | Peak handling, kurukuru derating | 130A kuncɛw bɛ 100A-rated units faga |
| Kunnafonin | "CAN bɛ bɛn". | Protocole verification ni laɲini inverter ye | "Compatible" kɔrɔ ye fɛn wɛrɛw ye |
Balannako min bɛ sen na sisan, o ka kan ni sinsin ye. Ni spec sheet ma miliampu hakɛ kɛrɛnkɛrɛnnen dɔ fɔ balansi current kama, "balancing function" bɛ se ka kɛ a tɛ kɛ cogo kɔrɔ si la. A ka c’a la, sistɛmu pasifw bɛ baara kɛ ni 30-100mA ye. Sitimɛ baarakɛtaw minnu bɛ fanga Lase tiɲɛ na seliluw ni ɲɔgɔn cɛ, olu bɛ baara Kɛ ni 600mA ye walima ka Tɛmɛ o kan. An y'a ye ko unitw bɛ feere i n'a fɔ "active balancing" minnu bɛ 45mA suman sɛgɛsɛgɛli la.
Kɔlɔsili dɔ kɛra BMS Architecture sɔngɔ gɛlɛn kan
Nin bɔra ɛntɛrinɛti foroba baro dɔ la min y’an kisi desizɔn jugu ma. BMS dilancogo dɔw minnu musaka ka dɔgɔ, olu bɛ baara kɛ ni selilu kelen-selɛri lakanani puwɛnti kelen-kelenw ye (i n’a fɔ DW01) minnu sirilen don ɲɔgɔn na walasa ka selilu caman-selilu labɛncogo dilan. Pucew dabɔra 1S baarakɛcogo dɔrɔn de kama. Ni fɛn dilannikɛlaw y’u siri ɲɔgɔn na cakɛda la 4S, 10S walima 20S pakew kama, puce kelen-kelen bɛɛ bɛ baara kɛ a yɛrɛma ni lakanani jɛlen tɛ.
Dɛsɛ cogoya ye farati ye: ni puce kelen sara ka sababu kɛ jibɔ walima ji ye min tɛ wuli, o selilɛri kulu bɛ bɔnɛ a lakanani bɛɛ la ka sɔrɔ sistɛmu tɔ bɛ to ka baara kɛ. Paki tɛ da tugu. A t'i lasɔmi. A bɛ boli dɔrɔn k’a sɔrɔ a ma lakana fo fɛn dɔ ka dɛsɛ kosɛbɛ.
BMS dilancogo ɲumanw bɛ baara kɛ ni IC caman-cell kɔlɔsili IC kɛrɛnkɛrɛnnenw ye minnu bɛ bɔ Texas Instruments, Analog Devices, walima o ɲɔgɔnna feerelaw fɛ. O puwɛntiw bɛ seliw bɛɛ kɔlɔsi ni sɛrɛkiliw ye minnu bɛ ɲɔgɔn sɔrɔ ni dɛsɛ cogoyaw ye minnu bɛ daminɛ ka dabila lafiya la. O musaka danfara bɛ se ka kɛ $15-30 ye unit kelen na hakɛ la. Lakanali danfara tɛ se ka suma ɲɔgɔn ma.
An y’a dabila ka jateminɛ kɛ feerekɛla o feerekɛla kan, n’o tɛ se k’u ka IC architecture ɲɛfɔ. Ni feerelikɛla t’a dɔn n’u bɛ baara kɛ ni selilu kelen-puwɛntiw ye selilu caman ICw kɔnɔ minnu bɛ ɲɔgɔn ta walima minnu bɛnnen don, o bɛ fɛn dɔ fɔ i ye u ka ɛntɛrinɛti juguya kan.
Seereyaw: U kɔrɔ ye min ye ani u kɔrɔ tɛ min na
An ka Ameriki Woroduguyanfan kiliyanw ka teli ka BMS "UL certified" ɲini. Daɲɛw fɔcogo nafa ka bon yan.
UN38.3 ka seereyaw bɛ tali kɛ bolifɛnw lakanani na. Yɛrɛyɛrɛli, sanfɛyɔrɔ, funteni-sɛrɛkili, bɔgɔdaga. A tɛ baarakɛcogo lakanani kofɔ baarakɛcogo yɛrɛ la. Litiyamu batiri o batiri bɛ ci diɲɛ kɔnɔ, o mago bɛ UN38.3 la. A sɔrɔli kɔrɔ ye ko i ka fɛn dilannen bɛ se ka dancɛw tigɛ sariya siratigɛ la. Ni a bɛ a la, o kɔrɔ tɛ ko BMS bɛna i ka selilɛriw lakana chargement fili waati.
IEC 62619 bɛ baarakɛcogo-fasa lakanani kofɔ izini baarakɛcogo la. Nin ye sariya ye min bɛ boli funteni boli kunbɛnni ni BMS jɛ-ka-baara wajibiyalenw ɲɛnabɔ. N’i bɛ batiri litiyamu bila forokiliw kɔnɔ, AGVw kɔnɔ, walima fɛn marayɔrɔ jɔlenw na, nin ye seere ye min nafa ka bon tiɲɛ na baarakɛcogo lakanani na.
UL 1973 bɛ tali kɛ kɛrɛnkɛrɛnnenya la fanga marayɔrɔ jɔlenw na Ameriki Woroduguyanfan na. A kɔnɔ, wajibi minnu bɛ kɛ ka ɲɛsin funteni jɛnsɛnni sɛgɛsɛgɛli ma ani fili muɲuni ma, IEC 62619 tɛ minnu dafa ka dafa.
Seereyaw dabɔcogo kuncɛlen
| Sariya | A bɛ Transport (Transport) kofɔ | A bɛ Baarakɛcogo ɲɛfɔ | A bɛ Thermal Runaway datugu | Wajibiyalen don For |
|---|---|---|---|---|
| UN38.3 | Awɔ | Ayi | Ayi | Dugukolo kan kurunbokari |
| IEC 62619 ye | Ayi | Awɔ | Awɔ | Industriw ka baarakɛcogo |
| UL 1973 sàn | Ayi | Awɔ | Awɔ | Ameriki Woroduguyanfan ka fɛnw marayɔrɔ jɔlen |
| UL 9540 ye | Ayi | Sisεmεti-dakun | Awɔ | ESS ka installations dafalenw |
An y’a ye ko feerekɛlaw b’a fɔ ko "UL recognised component" cogoya (karti jɛman) bɛ bɛn UL listing dafalen ma. O tɛ. An ye Ameriki Woroduguyanfan porozɛ dɔ min kɛ, o ma se ka kɛ bawo kiliyan ka ɛntɛrinɛti jɛkulu sɔnna karti jɛman sɛbɛnw ma, wa fanga min ka fanga bɛ o la, o banna o la sɛgɛsɛgɛli laban senfɛ. Porozɛ in ye kalo saba bila kɔfɛ k’a sɔrɔ u tun bɛ minɛnw sɔrɔ minnu bɛ sariyaw labato.
IEEE 2686-2024 sariyasun in ka kan ka fɔ yan. A tɛ seereyali wajibiyalen ye, nka a bɛ wale fɔlɔ laadilen jira kɛrɛnkɛrɛnnenya la fanga marayɔrɔ BMS jɔlenw na. Fɛn dilanbagaw minnu bɛ IEEE 2686 labatoli kofɔ, olu bɛ u janto sisan wale ɲumanw na a dɔgɔyalenba la. (exponent.com bɛ nin sariya ninnu ka fɛɛrɛbɔ kuncɛcogo ɲumanw mara n’i b’a fɛ ka kalan jugu kɛ.)
An bɛ feerekɛlaw jateminɛ cogo min na sisan
Kalan caman sɔrɔlen kɔfɛ, an ye jateminɛ kɛcogo basigilen dɔ labɛn. Porozɛ bɛɛ mago tɛ sɛgɛsɛgɛli bɛɛ la, nka ka tɛmɛn fɛɛrɛw kan, o ye musaka caman kɛ an na fo an bɛ se ka baara kɛ ka ɲɛ.
Lakanali ni sariya labatoli sɛgɛsɛgɛli de bɛ fɔlɔ. An bɛ sɛgɛsɛgɛli rapɔɔri nimɔrɔ lakikaw ɲini, an tɛ seereyaw ɲinini dɔrɔn de ɲini. IEC 62619 sɛgɛsɛgɛli rapɔɔri min bɛ se ka kɛ, o bɛ ni sɛbɛn nimɔrɔ ye, sɛgɛsɛgɛli laboratuwari, ani sɛgɛsɛgɛli cogoya kɛrɛnkɛrɛnnenw. Ni feerekɛla bɛ se ka seere ja dɔrɔn de di, an bɛ dugukolo sɛgɛsɛgɛ ka taa a fɛ.
Fɛɛrɛbɔ bɛnkan de bɛ tugu o kɔ. Yala BMS voltage range bɛ i ka pack configuration datugu tiɲɛ na ni margin ye wa? 16S BMS min bɛ a dancɛba la, o ni 20S BMS min bɛ baara kɛ 16S la, o tɛ kelen ye. Yala kumaɲɔgɔnya protocole bɛ baara kɛ tiɲɛ na ni i ka chargeur ni inverter ye wa, walima "CAN compatible" kɔrɔ ye ko "an bɛ baara kɛ ni CAN ye nka ni proprietary message formatting ye" wa?
An bɛ balansi kura sɛgɛsɛgɛ an yɛrɛma ni a bɛ se ka kɛ. Fɛn dilanbagaw b’a dɔn ko an bɛ sɛgɛsɛgɛli kɛ, o min bɛ teli ka spec sɛbɛnw to tiɲɛ na.
Fɛnw dilancogo tɛmɛnen nafa ka bon ka tɛmɛ sannifeere jɛkulu fanba b’a dɔn cogo min na. BMS feerela min bɛ i ka modɛli mid-poroze dabila, o bɛ kunkolodimi bila a nɔ na san caman kɔnɔ. An bɛ ɲininkali kɛ fɛn dilannenw siraw kan, komandi hakɛ fitininw sanni nataw kama, ani ni dilancogo bɛ baara kɛ ni fɛnw yɔrɔw ye walima ni ASICw ye minnu bɛ kɛ ka kɛɲɛ ni mɔgɔw sago ye, minnu bɛ se ka kɛ fɛn ye min tɛ se ka sɔrɔ.
An ka izini batiri ɲɛnabɔli kama Polinovel la, BMS jɛ-ka-baara bɛ kɛ seli-ka -paki dilan waati. An tɛ ka BMS sabanan-faraw bila kɔfɛ pake dafalenw kan. O b’a to an bɛ se ka sensɛriw bilali, filiw siraw, ani funteni maracogo ɲɛ i n’a fɔ sistɛmu sanni ka ɲɛsin sugu kɔfɛ sigili bɛnkanw ma. An ka ɛntɛrinɛti jɛkulu bɛ BMS ka fɛn ɲɛfɔlenw bonya ka da baarakɛcogo wajibiyalenw kan: baarakɛcogo, sisan cogoyaw, lamini funteni hakɛw, kumaɲɔgɔnya protocol magow.
N’i bɛ ka litiyamu batiri suganditaw jateminɛ fɛnw minɛcogo minɛnw na walima izini bolifɛnw na, BMS baro ka kan ka kɛ joona ɲɛfɔli kɛcogo la, a man kan ka kɛ i n’a fɔ miiri kɔfɛ. Ɲininkali minnu nafa ka bon, olu ye baarakɛcogo-kɛrɛnkɛrɛnnenw ye, wa spec comparisons generiques bɛ fɛn fanba fili min bɛ nɔ bila dannaya kuntaalajan-kan na.
Aw ye aw bolo don an ka ladɛrɛsi ɲɛ fɛ n’aw ka ɲinini kunnafoniw ye. An bɛna a fɔ aw ye tiɲɛ na ni an ka furakɛlicogo bɛ bɛn aw ka ɲininiw ma walima ni aw ka kan ka yɔrɔ wɛrɛ ɲini.
