Chitetezo cha BMS Choyipa Chopitirira Mphamvu: Chifukwa Chake Chimayambitsa Kuthamanga Koyambirira ndi Momwe Mungakonzere
BMS ili ndi chitetezo cha overvoltage chotsika. Koma mukayang'ana voltage ya pakiti - kapena ngakhale voltage yapakati ya selo - imawerengedwa3.45Vpa selo iliyonse, pansi kwambiri pa3.65VMphamvu ya LiFePO4 yopitirira muyeso. BMS ikuwoneka kuti ikuyamba molakwika.
Ndithudi, sichoncho. BMS ikuyankha vuto lenileni - osati lomwe mukuyang'ana. Kumvetsetsa zomwe BMS imayang'anira kumakuuzani nthawi yomweyo zomwe muyenera kuyang'ana.
Zimene BMS Monitors: Per-Cell Voltage, Osati Avereji
Chitetezo cha BMS chopitirira muyeso chimayankhavoteji ya selo ya munthu aliyense, osati pa avareji ya pakiti ya voltage kapena voteji yonse ya pakiti yogawidwa ndi kuchuluka kwa maselo.
Ngati paketi ya 16S LiFePO4 ili ndi avareji ya3.45Vpa selo iliyonse (chiwonkhetso55.2V), koma selo limodzi lili pa3.66Vpomwe enawo ali ndi avareji3.44V, BMS idzagwetsa chitetezo cha over-voltage pa selo imodziyo. Kuchokera kunja, pakiti ya voltage ikuwoneka bwino. BMS ikugwira ntchito bwino - idapeza vuto lenileni la over-voltage pa selo yapamwamba kwambiri.
BMS imayendetsa OVP pa foni iyi— ngakhale kuti avareji ya paketi ndi yabwino
Ichi ndiye chifukwa chofala kwambiri chomwe chimawoneka ngati kuyenda kwa magetsi ochulukirapo "abodza". Si zabodza. Ndi kuthamanga kwa magetsi ochulukirapo pa selo yeniyeni yomwe ikusunthika kwambiri kuposa ina yoyandikana nayo.
Zifukwa Zinayi — Zodziwika ndi Chitsanzo
| Chifukwa | Ikagwa | Zimene pulogalamuyi ikuwonetsa | Konzani |
|---|---|---|---|
| Kusalingana kwa maselo | Chaja chatsala pang'ono kutha; selo imodzi patsogolo | Selo limodzi lalitali; lina lotsika | Kulinganiza bwino; kuzungulira konsekonse |
| Voliyumu yochaja yakwera kwambiri | Gawo lililonse lolipiritsa kumapeto | Maselo ambiri okwera akuyandikira OVP | Kuchepetsa mphamvu ya charger kuti igwirizane ndi zomwe zili mu paketi |
| Miyezo ya OVP yakhazikitsidwa yotsika kwambiri | Asanayambe kulamulira kuposa momwe amayembekezera | Maselo ali pansi pa 3.65V, koma amayaka moto | Chongani ndi kukonza malire a BMS |
| Chitetezo cha kutentha sichinasinthidwe bwino | M'malo otentha muli magetsi | Kutentha kwa phukusi kukukwera; OVP ikuyaka moto isanatetezedwe kutentha | Tsimikizani malire oteteza kutentha |
Chifukwa 1: Kusalingana kwa Maselo (Kofala Kwambiri)
Maselo akamakalamba ndi kuzungulira, kusiyana pang'ono kwa kukana kwamkati kumapangitsa kuti asunthike akamachaja. Selo lomwe lili ndi kukana kotsika kwambiri limachaja mwachangu kwambiri ndipo limafika pamlingo wokwera kwambiri kuposa ena. Selo limodzi likagundana ndi selo limodzi.3.65V, maulendo a BMS — ngakhale kuti ambiri mwa anthuwa ali pa3.44Vndipo angalandire ndalama zambiri.
Momwe mungatsimikizire
Tsegulani pulogalamu ya DALY BMS panthawi yochajitsa ndikuyang'anira ma voltage pa selo iliyonse. Ngati selo imodzi ikukwera mofulumira kuposa inayo — yendetsani patsogolo ndi 50–100mV ena asanakwane3.50V— kusalingana ndiye chifukwa chake.
Momwe mungakonzere
Ngati pali kusalinganika pang'ono (selo limodzi 30–50mV kuposa ena): yambitsani nthawi yochaja pang'onopang'ono pa 0.1C ndikusiya paketiyo italumikizidwa charger ikadula. Izi zimapatsa nthawi yoti passive balancing circuit ituluke mu cell yayikulu pamwamba pa charge.
Pa kusalinganika kosalekeza komwe kumabwerera mwachangu pambuyo pa kuyesa kulikonse kwa balance: Smart BMS yokhala ndi active balance ndiyo yankho loyenera. Active balancing imagwira ntchito nthawi yonse ya charge (osati kokha pamwamba pa charge), nthawi zonse kugawa charge pakati pa maselo kuti high cell isathamange patsogolo poyamba.
Chifukwa Chachiwiri: Voltage Yokwera Kwambiri Yogulira
Ngati mphamvu yotulutsa ya charger ipitirira mphamvu yoyipa kwambiri ya paketi (maselo × malire a OVP), kuyatsa kudzayendetsa maselo pamwamba pa malire a OVP pa gawo lililonse.
Momwe mungatsimikizire
Yang'anani mphamvu ya magetsi yotulutsa mphamvu ya charger ndi voltmeter. Pa paketi ya 16S LiFePO4, mphamvu ya magetsi yotulutsa mphamvu ya charger siyenera kupitirira apo.16 × 3.65V = 58.4V. Chaja yovomerezeka pa 60V pa paketi ya 16S ingathandize kuti OVP igwire bwino ntchito nthawi iliyonse yochaja.
Momwe mungakonzere
Sinthani mphamvu yamagetsi yotulutsira chaja kuti igwirizane ndi zomwe zafotokozedwa pa paketi, kapena sinthani mphamvu yamagetsi ndi mphamvu yolondola ya paketi. Pa LiFePO4, mphamvu yamagetsi yotulutsira mphamvu yamagetsi yanthawi zonse ndi3.65Vpa selo iliyonse — mwachitsanzo58.4Vkwa 16S,29.2Vkwa 8S,14.6Vza 4S.
Chifukwa 3: OVP Threshold Set Yotsika Kwambiri
Ngati BMS idakonzedwa kale ndi malire okhazikika a over-voltage — mwachitsanzo,3.55Vm'malo mwa3.65Vkwa LiFePO4 — kuyatsa bwino kudzasokoneza chitetezo cha maselo asanadzaze.
Momwe mungatsimikizire
Chongani makonda a BMS mu pulogalamu ya DALY kapena pulogalamu ya PC upper-computer. Pitani ku makonda a protection threshold ndikutsimikizira chizolowezi cha over-voltage protection motsutsana ndi zomwe mukufuna pa cell chemistry.
Momwe mungakonzere
Sinthani malire a OVP kuti agwirizane ndi zomwe wopanga ma cell anu amafotokozera za voltage yayikulu yotsatsira. Pa ma cell wamba a LiFePO4,3.65Vpa selo lililonse ndiye muyezo wapamwamba kwambiri wamakampani.Musayike pamwamba kuposa zomwe selo limafotokoza— kupitirira mphamvu yayikulu ya mphamvu ya selo kumayambitsa kuwonongeka kwachangu ndipo, nthawi zambiri, kumabweretsa chiopsezo cha chitetezo.
Chifukwa 4: Chitetezo cha Kutentha Chosasinthika
Mu malo otentha — malo osungira mpweya wochepa, malo ozungulira nthawi yachilimwe, kapena malo otulutsira mpweya wovuta — paketi iyenera kutetezedwa ndi ma BMSkutenthaChitetezo chimachepa nthawi yayitali OVP isanayambe kukhala chitetezo choyenera. Ngati mukuwona kutsika kwa OVP pamalo otentha pomwe chitetezo cha kutentha sichinagwire ntchito, malire a kutentha mwina sakukonzedwa bwino kapena kulephereka.
Momwe mungatsimikizire
Yang'anani kuchuluka kwa kutentha mu pulogalamu ya BMS panthawi yoyatsira pamene OVP ikutsika. Ngati kutentha kwa paketi kukuyandikira kapena kupitirira kuchuluka komwe wopanga selo amalangiza kuti aziyatsira (nthawi zambiri kumakhala pansi pa 45°C pa LiFePO4), chitetezo cha kutentha chiyenera kuyambitsa — osati OVP. Onetsetsani kuti malire a chitetezo cha kutentha kwambiri atsegulidwa ndipo akhazikitsidwa mkati mwa zomwe wopanga seloyo wanena.
Momwe mungakonzere
Konzani chitetezo cha kutentha kwambiri kuti chigwire ntchito maselo asanafike kutentha kosatetezeka. Konzani mpweya wokwanira m'chipinda chogona. Musachepetse malire a OVP kuti muchepetse mavuto a kutentha - omwe amabisa vuto lenileni (kutentha) ndikusiya paketiyo ili pachiwopsezo cha kutentha.
Momwe Mungabwezeretsere Pambuyo pa Maulendo a OVP
Chitetezo cha over-voltage chimatha chokha pamene voltage ya selo yoyambitsa imatsika pansi pa malire a OVP recovery (mtengo womwe umayikidwa pansi pa malo oyendera a OVP). Izi zimachitika nthawi zambiri pamene:
Chochajacho chatsekedwa— mphamvu ya selo imatsika pamene mphamvu ya pamwamba itatha.
Katundu walumikizidwa kwakanthawi— imachepetsa mphamvu yamagetsi ya selo.
Kusamutsa kapena kutuluka kwa magazi kwa BMS kumayendetsa mphamvu kuchokera ku selo yayikulu— magetsi amachepa.
Musayese kubwezeretsanso BMS pamanja kapena kuikakamiza kuti ilandire mphamvu yowonjezera. OVP ilipo kuti iteteze selo lalikulu kuti lisayendetsedwe pamwamba pa mphamvu yake yayikulu. Konzani chomwe chimayambitsa (kusalingana, mphamvu ya charger, kuyika malire, kapena kutentha) musanayambe nthawi yotsatira ya charge.
Momwe DALY Smart BMS Imathandizira Kuzindikira Izi
Kuzindikira bwino ulendo wa OVP kumafuna kuwona mphamvu yamagetsi pa selo iliyonse panthawi yeniyeni ya ulendo - mphamvu yomwe DALY Smart BMS imapangira.
TheDALY Smart BMSimawonetsa ma voltage a selo lililonse nthawi yeniyeni. OVP ikayamba, pulogalamuyi imawonetsa selo lomwe linayambitsa - kotero chomwe chimayambitsa (selo limodzi lokwera, maselo onse okhala pamwamba, kapena vuto la kutentha) chimawonekera nthawi yomweyo m'malo mongoganizira pambuyo pake.
Zolemba zakale za zochitika zimalemba selo loyambitsa ndi momwe zinthu zilili pa chochitika chilichonse cha OVP, kuti muthe kudziwa ngati selo lomwelo likuyamba kuyambitsa nthawi zonse (kusonyeza kusalinganika kosalekeza) kapena ngati maselo angapo akufikira OVP pamodzi (kusonyeza vuto la charger kapena threshold).
Kwa maphukusi omwe amayendayenda mosalekeza,Mndandanda wa Kulinganiza Kogwira NtchitoImapita patsogolo pang'ono: m'malo motulutsa mphamvu kuchokera ku maselo okwera kudzera mu ma resistors, imasamutsa mphamvu pakati pa maselo nthawi yonse ya mphamvu, ndikusunga paketiyo molunjika selo lisanathamangire ku OVP.
Mafunso Ofunsidwa Kawirikawiri
Pulogalamu ya BMS imawonetsa mphamvu ya pakiti ya 56V pa paketi ya 16S — imeneyo ndi avareji ya 3.5V pa selo iliyonse. Nchifukwa chiyani OVP ikugwa?
Mulingo wa OVP umagwira ntchito pavoteji ya selo ya munthu aliyense, osati avareji ya paketi. Ngati selo imodzi ili pa3.66Vpomwe enawo ali ndi avareji3.48V, OVP idzagwa pa selo limenelo ngakhale kuti avareji ya paketi ikuwoneka bwino. Tsegulani mawonekedwe a voteji pa selo iliyonse mu pulogalamuyi — selo lalikulu lidzakhala loonekera bwino kuposa ena. Tumizani kasinthidwe ka paketi yanu (voteji ya dongosolo, kuchuluka kwa maselo, mphamvu) ku gulu lathu ndipo titha kukuthandizani kutsimikizira ngati BMS yanu yamakono ikupereka mawonekedwe a selo iliyonse pa kuya komwe mukufuna.
Ndasintha malire a OVP kuti ndisiye maulendo. Kodi zimenezo n’zotetezeka?
Kusintha malire kuti agwirizane ndi mphamvu yeniyeni ya maximum charge voltage ya selo yanu ndikotetezeka (kwa LiFePO4 yokhazikika, iyi ndi3.65Vpa selo iliyonse). KuisinthapamwambapaMafotokozedwe a selo kuti aletse maulendo omwe akusonyeza vuto lenileni si — amalola maselo kuyendetsedwa pamwamba pa mphamvu yawo yayikulu, zomwe zimawonjezera kuwonongeka ndipo, nthawi zina, zimapangitsa kuti pakhale chiopsezo cha chitetezo. Konzani chomwe chimayambitsa maulendowo m'malo mokweza malire kupitirira malire a selo.
Selo lomwelo nthawi zonse limayambitsa OVP poyamba. Kodi liyenera kusinthidwa?
Sizofunikira kwenikweni. Selo yomwe imafika nthawi zonse ku OVP nthawi yoyamba ikayamba kuyatsidwa ndi selo lomwe lili ndi mphamvu zochepa kwambiri mkati, mphamvu zochepa zotsala, kapena zonse ziwiri - imangodzaza kaye.Selo yomwe iyenera kusinthidwa ndi yomwe imafika koyamba pa under-voltagepanthawi yotulutsa(mphamvu yochepa kapena kukana kwakukulu pamene katundu wakwezedwa), osati yomwe imachaja mwachangu kwambiri. Kuti musiyanitse izi, onani malekezero onse awiri a kuzungulira mu pulogalamu ya BMS: pamwamba pa mphamvu ya maselo oyamba a OVP, pansi pa kutulutsa kwa maselo oyamba a UVP. Kulinganiza bwino kumasunga paketiyo mosasamala kanthu kuti ndi selo liti lomwe limadzala poyamba, zomwe zimachedwetsa kufunikira kosintha.
BMS yanga ili ndi kulinganiza kosachitapo kanthu komanso kogwira ntchito — ndi chiyani chomwe chikugwira ntchito?
Magawo ambiri a Smart BMS amagwiritsa ntchito passive balancing — mphamvu yaying'ono yotuluka magazi (nthawi zambiri imakhala makumi khumi mpaka mazana a mA) yomwe imagwira ntchito selo likadutsa malire oyambira pafupi ndi pamwamba pa chaji. Mndandanda wa DALY Active Balancing umagwiritsa ntchito kusamutsa chaji (nthawi zambiri kalasi ya ma amp angapo) ndipo umagwira ntchito nthawi yonse ya chaji, osati pamwamba pokha. Pa kusalinganika pang'ono ndi ntchito zochaja pang'onopang'ono, passive ndi yokwanira. Pa mapaketi omwe amasonyeza kuyenda kosalekeza pakati pa magawo, active balancing ndiyo njira yokwezera. Titumizireni paketi yanu ndi momwe mungagwiritsire ntchito kuti tikulimbikitseni.
Chidule: Chitsanzo → Chifukwa → Kukonza
| Chitsanzo | Chifukwa | Konzani |
|---|---|---|
| Selo limodzi nthawi zonse limagunda OVP; ena ali pansipa | Kusalinganika kwa maselo — selo imodzi ikuchaja mofulumira | Kulinganiza bwino kapena magawo olinganiza pang'onopang'ono |
| Maselo onse akuyandikira OVP pamodzi | Voliyumu yochaja yakwera kwambiri | Kutulutsa kwa charger kotsika kuti kugwirizane ndi zomwe zili mu paketi |
| OVP pa voteji yomwe ikuwoneka yotsika kwambiri | Malo olowera adayikidwa molakwika | Chongani & konzani malire a OVP mu makonda a BMS |
| OVP m'malo otentha pomwe chitetezo cha kutentha chili chete | Chitetezo cha kutentha sichinasinthidwe bwino | Tsimikizani malire a chitetezo cha chaji yotentha kwambiri |
Mukufuna BMS yomwe imazindikira chomwe chimayambitsa vutoli mumasekondi?
Titumizireni manambala anayi ndipo tidzakulangizani momwe mungakonzere DALY Smart BMS yoyenera pa paketi yanu — yokhala ndi mawonekedwe a selo iliyonse komanso njira yoyenera yolinganiza mawonekedwe anu osalinganika.
- Voliyumu ya dongosolo (12V / 24V / 48V / 72V kapena mwamakonda)
- Chiwerengero cha maselo mu mndandanda (S)
- Mphamvu yodziwika (Ah)
- Kugwiritsa ntchito (kusungirako kwa dzuwa / EV / e-bike / UPS / mafakitale)
Pezani Malangizo Okonzekera
Yankhani mkati mwa maola 24 · Gulu la mainjiniya, osati zolemba zogulitsa
Kuti mudziwe zambiri zokhudza matenda okhudzana ndi BMS, onani malangizo athu pamomwe mungadziwire kulephera kwa kulumikizana kwa BMSndiKulinganiza kogwira ntchito poyerekeza ndi kosachitapo kanthu kwa mapaketi a LiFePO4.
Zolemba pa Chithandizo Chochokera ku Magwero
Voliyumu yayikulu ya ma cell a LFP ya 3.65V/selo imalembedwa nthawi zonse m'magwero onse khumi ndi limodzi odziyimira pawokha omwe atchulidwa pamwambapa (onani 1-11) ndipo ikugwirizana ndi zomwe wopanga wamkulu wa CATL / EVE / CALB adafotokoza. Mtengo uwu unawonedwa ngati wotsimikizika mokwanira.
Mafotokozedwe a mphamvu ya mkati mwa chinthu (kuonetsa pa selo iliyonse, mbiri yakale, khalidwe lolinganiza) afotokozedwa mwatsatanetsatane m'nkhaniyi m'malo mokhala ndi manambala enieni (kulondola kwa mV, kuchuluka kwa zotsitsimutsa, mphamvu yosungira zochitika, kulinganiza mavoti amakono), poyembekezera kutsimikizika kwaukadaulo kwa mafotokozedwe amenewo.
Gawo la Cause 4 (Temperature) linapangidwa mwadala mozungulira kusasinthika kwa kutentha ndi chitetezo m'malo modalira mphamvu yamagetsi motsutsana ndi kutentha mwachindunji, chifukwa mabuku a LFP a anthu onse sathandizira ubale woyera wa mawonekedwe a "temperature elevation X°C → cell voltage rise Y mV" pansi pa mikhalidwe yolipiritsa. Chimango chomwe chasankhidwa pano chimalepheretsa ogwiritsa ntchito kuzindikira molakwika vuto la kutentha ngati vuto la magetsi.
Nthawi yotumizira: Meyi-09-2026
