Uburinzi bwa BMS False Overvoltage: Impamvu itera hakiri kare n'uburyo bwo kuyikemura
BMS ifite uburinzi bwa overvoltage bukabije. Ariko iyo urebye voltage ya paki - cyangwa ndetse na voltage isanzwe ya selile - irasoma3.45Vkuri buri kagari, munsi cyane y'urugero3.65VUmupaka wa LiFePO4 urenze urugero. BMS isa nkaho irimo gutera nabi.
Birumvikana ko atari byo. BMS irimo gusubiza ikibazo nyacyo - ariko ntabwo ari icyo urimo kugenzura. Gusobanukirwa icyo BMS igenzura ikubwira ako kanya icyo ugomba kureba.
Ibyo BMS Monitors: Voltage kuri buri selile, ntabwo ari impuzandengo
Uburinzi bwa BMS burenze urugero busubizaingufu z'amashanyarazi ku ngirabuzimafatizo z'umuntu ku giti cye, ntabwo ari ku mpuzandengo y'umuvuduko w'ipaki cyangwa voltage yose y'ipaki igabanyijemo umubare w'uturemangingo.
Iyo ipaki ya 16S LiFePO4 ifite impuzandengo ya3.45Vkuri buri kagari (igiteranyo cyose55.2V), ariko akagari kamwe kari kuri3.66Vmu gihe abandi basanzwe3.44V, BMS izahungabanya uburinzi bwa over-voltage kuri iyo selile imwe. Urebye inyuma, voltage ya paki isa neza. BMS ikora neza - yasanze imiterere nyayo ya over-voltage kuri selile yo hejuru.
BMS irasura OVP kuri iyi telefoni— nubwo impuzandengo y'ipaki ari nziza
Iyi ni yo mpamvu ikunze gutuma habaho ikintu gisa n'aho ari "ikinyoma" cyo kunyura hejuru y'amashanyarazi. Si ikinyoma. Ni amashanyarazi menshi cyane ku ngirabuzimafatizo nyayo iri kugenda hejuru cyane kurusha abaturanyi bayo.
Impamvu enye — Zigaragazwa n'icyitegererezo
| Impamvu | Iyo igiye | Icyo porogaramu igaragaza | Kosora |
|---|---|---|---|
| Ubusumbane bw'uturemangingo | Igihe cyo gusharija kiri hafi kurangira; kasho imwe iri imbere | Ingirabuzimafatizo imwe nini; izindi zo hasi | Kugereranya ibintu mu buryo bufatika; imikorere yuzuye y'urutonde |
| Umuvuduko w'amashanyarazi uri hejuru cyane | Buri gihe cyo kwishyura girangiye | Uturemangingo twinshi turi hejuru twegereje OVP | Kugabanya voltage ya charger ku gipimo cy'ipaki |
| Umubare ntarengwa wa OVP washyizweho uri hasi cyane | Yatangiye kuyobora mbere y'igihe ugereranyije n'uko byari byitezwe | Uturemangingo turi munsi ya 3.65V, ariko inkongi z'umuriro zirashya | Suzuma kandi ukosore urugero rwa BMS |
| Uburinzi bw'ubushyuhe bwashyizweho nabi | Mu bidukikije bishyushye cyane | Ubushyuhe bw'ipaki buriyongera; OVP irashya mbere yo kwirinda ubushyuhe | Genzura ibipimo by'ubushyuhe |
Impamvu ya 1: Kutagera ku rugero rw'uturemangingo (Bikunze Kugaragara)
Uko uturemangingo dusaza n'utundi duce, itandukaniro rito mu miterere y'ubudahangarwa bw'imbere rituma dutandukana mu gihe cyo gusharija. Uturemangingo dufite ubudahangarwa bwo hasi cyane duhashya vuba cyane kandi tukagera ku rugero rwo hejuru rw'amashanyarazi mbere y'izindi. Iyo utwo turemangingo tugeze kuri3.65V, ingendo za BMS — nubwo igice kinini cy'ipaki kiri kuri3.44Vkandi ashobora kwemera kwishyurwa byinshi.
Uburyo bwo kwemeza
Fungura porogaramu ya DALY BMS mu gihe cyo gutanga umuriro hanyuma urebe voltage kuri buri selile. Niba selile imwe izamuka vuba kurusha izindi - komeza imbere kuri 50–100mV mbere yuko izindi zigera ku rugero rumwe.3.50V— ubusumbane niyo mpamvu.
Uburyo bwo gukosora
Ku bijyanye n'ubusumbane bworoheje (agace kamwe kari hejuru ya 30–50mV): koresha igihe cyo gushyushya buhoro kuri 0.1C hanyuma ureke agapaki gahujwe nyuma yuko charger icitse. Ibi biha umwanya wo gusohora amaraso mu gace kari hejuru y'agace kashyushya.
Ku bijyanye n'ubusumbane buhoraho bugaruka vuba nyuma ya buri kigeragezo cyo kuringaniza: Smart BMS ifite imikorere yo kuringaniza ni igisubizo gikwiye. Umurimo wo kuringaniza ukorera mu gihe cyose cyo kuringaniza (atari gusa ku mwanya wo kuringaniza), ukomeza gukwirakwiza imikorere hagati y'uturemangingo kugira ngo uturemangingo twinshi tudatera imbere mbere na mbere.
Impamvu ya 2: Voltage yo mu ishaje iri hejuru cyane
Iyo voltage y'umuvuduko w'ishaja irenze voltage ntarengwa yo gushyushya ipaki (uturemangingo × umuvuduko wa OVP), gusharija bizatwara uturemangingo hejuru y'umuvuduko wa OVP kuri buri gihembwe.
Uburyo bwo kwemeza
Genzura ingufu z'amashanyarazi zisohoka ukoresheje voltmeter. Ku ipaki ya 16S LiFePO4, ingufu z'amashanyarazi zisohoka ntizigomba kurenza16 × 3.65V = 58.4V. Ishaja ifite agaciro ka 60V ku ipaki ya 16S izakoresha OVP neza kuri buri shaja.
Uburyo bwo gukosora
Hindura voltage y'umuvuduko w'ishaja kugira ngo ihuze n'ibipimo by'ipaki, cyangwa usimbuze shaja ifite amanota meza kuri paki. Kuri LiFePO4, voltage ntarengwa isanzwe ni3.65Vkuri buri kagari — urugero58.4Vkuri 16S,29.2Vkuri 8S,14.6Vkuri 4S.
Impamvu ya 3: Ingano ya OVP iri hasi cyane
Niba BMS yari yarashyizweho mbere ifite umupaka uhoraho wa over-voltage — urugero,3.55Vaho kuba3.65Vkuri LiFePO4 — gusharija bisanzwe bizabangamira uburinzi mbere yuko utwugarizo twuzura.
Uburyo bwo kwemeza
Reba imiterere ya BMS muri porogaramu ya DALY cyangwa porogaramu ya mudasobwa yo hejuru ya PC. Jya ku imiterere y'umurongo w'uburinzi hanyuma urebe neza urwego rw'uburinzi bwa voltage irenze urugero ukurikije imiterere ya shimi y'uturemangingo twawe.
Uburyo bwo gukosora
Hindura umupaka wa OVP kugira ngo uhuze n'ibisobanuro by'uwakoze selile yawe ku bijyanye n'amashanyarazi ntarengwa. Ku selile zisanzwe za LiFePO4,3.65Vkuri buri kagari ni cyo gipimo ntarengwa cy’inganda.Ntushyire hejuru y'ibipimo by'akagari— Kurenga ingufu ntarengwa z’amashanyarazi y’akagari bitera kwangirika kwihuta, kandi mu bihe bikomeye, bishobora guteza ingaruka ku mutekano.
Impamvu ya 4: Uburinzi bw'ubushyuhe bwakozwe nabi
Mu bidukikije bishyushye — ahantu hadafite umwuka mwiza, ahantu ho mu mpeshyi, cyangwa ahantu hakomeye ho gusohora umuriro — agapaki kagomba kurindwa na BMSubushyuheUburinzi bugarukira ku rugero runaka mbere yuko OVP iba uburinzi bukwiye. Niba urimo kubona OVP igenda mu bihe by'ubushyuhe mu gihe ubushyuhe butaragera, ibipimo by'ubushyuhe bishobora kuba bitateguwe neza cyangwa byarafunzwe.
Uburyo bwo kwemeza
Reba uko ubushyuhe bungana muri porogaramu ya BMS mu gihe cyo gutanga umuriro igihe OVP igiye. Niba ubushyuhe bw'ipaki buri hafi cyangwa burenga urugero rw'inyongera rwasabwe n'uruganda rukora ibyuma (ubusanzwe ruri munsi ya 45°C kuri LiFePO4), ubushyuhe bugomba kuba butera imbaraga - ntabwo ari OVP. Emeza ko urugero rwo kurinda umuriro w'ubushyuhe bwinshi rufunguye kandi rushyizwe mu bipimo by'uruganda rukora ibyuma.
Uburyo bwo gukosora
Shyiraho uburyo bwo kurinda ubushyuhe bwinshi kugira ngo buhuze mbere yuko uturemangingo tugera ku bushyuhe butekanye. Ongera uburyo bwo guhumeka mu gikari. Ntugabanye urugero rwa OVP kugira ngo wishyure ibibazo by'ubushyuhe - ibyo bipfuka ikibazo nyacyo (ubushyuhe) kandi bigatuma agasanduku kagaragaramo ubushyuhe.
Uburyo bwo Gusubiramo Nyuma y'Ingendo za OVP
Uburinzi bwa overvoltage bwica burundu iyo voltage y'akaremangingo gatera ikibazo igabanutse munsi y'umurongo wa OVP recovery (agaciro kari munsi y'aho OVP trip point). Ibi bikunze kubaho iyo:
Ishariji yakuweho— ingufu z'uturemangingo ziragabanuka uko umuriro w'ubuso ugenda ushira.
Umutwaro uhujwe gato— igabanya ingufu nyinshi z'ingirabuzimafatizo.
Uburyo bwo kongerera amaraso bwa BMS butuma amaraso asohoka cyangwa asohoka asohoka aturutse ku ngirabuzimafatizo nini— ingufu z'amashanyarazi ziragabanuka.
Ntugerageze gusubiza BMS mu buryo bw'intoki cyangwa kuyihatira kwakira umuriro mwinshi. OVP ihari kugira ngo irinde ingirabuzimafatizo nyinshi gutwarwa hejuru y'umuvuduko ntarengwa wayo. Komeza impamvu nyamukuru (kutangana, umuriro w'amashanyarazi, gushyiraho urwego rw'ubushyuhe, cyangwa ubushyuhe) mbere y'uko itangira gushya.
Uburyo DALY Smart BMS ifasha mu gusuzuma ibi
Gusuzuma neza urugendo rwa OVP bisaba kureba voltage kuri buri selile mu gihe nyacyo urugendo rwabereyeho - ubushobozi DALY Smart BMS yashingiyeho.
ItsindaDALY Smart BMSigaragaza voltage y’uturemangingo ku giti cyatwo mu gihe nyacyo. Iyo OVP itangiye, porogaramu igaragaza uturemangingo twayiteye — bityo impamvu nyamukuru (uturemangingo tumwe turi hejuru, uturemangingo twose turi hejuru hamwe, cyangwa ubushyuhe butari bwiza) ihita igaragara aho gufatwa nyuma y’ibyabaye.
Urutonde rw'ibyabaye mu mateka rugaragaza akaremangingo gatera imbaraga n'imiterere ya buri kintu cyabaye muri OVP, bityo ushobora kumenya niba akaremangingo kamwe gatera imbaraga buri gihe (bigaragaza ubusumbane buhoraho) cyangwa niba uturemangingo twinshi tugera kuri OVP hamwe (bigaragaza ikibazo cyo gushyushya cyangwa ikibazo cyo kugabanya ingufu).
Ku mapaki afite uburyo bwo kugenda buhoro buhoro,Urukurikirane rw'ibipimo by'imikorereItera intambwe imwe: aho kuva amaraso aturutse ku turemangingo twinshi binyuze muri resistor, yohereza umuriro hagati y’uturemangingo mu gihe cyose cy’izunguruka ry’umuriro, bigatuma agapaki gafatana neza mbere yuko utwo turemangingo twirukira kuri OVP.
Ibibazo Bikunze Kubazwa
Porogaramu ya BMS igaragaza voltage ya paki ya 56V ku ipaki ya 16S - ni ukuvuga impuzandengo ya 3.5V kuri buri selile. Kuki OVP igwa?
Igipimo cy'abatishoboye (OVP) gikurikizwa kuriingufu z'amashanyarazi ku ngirabuzimafatizo z'umuntu ku giti cye, ntabwo ari impuzandengo y'ipaki. Niba selile imwe iri kuri3.66Vmu gihe abandi basanzwe3.48V, OVP izagwa kuri iyo selile nubwo impuzandengo y'ipaki isa neza. Fungura ishusho ya voltage kuri selile muri porogaramu — selile iri hejuru izaba igaragara hejuru y'izindi. Ohereza imiterere ya paki yawe (voltage ya sisitemu, umubare w'iseli, ubushobozi) ku ikipe yacu maze dushobora kugufasha kugenzura niba BMS yawe iriho itanga uburyo bwo kugaragara kuri selile ku bujyakuzimu ukeneye.
Nahinduye umubare w'abakiriya badafite ubwishingizi kugira ngo ingendo zihagarare. Ese ibyo ni byiza?
Guhindura urugero rw'amashanyarazi kugira ngo ruhuze n'amashanyarazi nyayo y'ingirabuzimafatizo yawe nta kibazo (kuri LiFePO4 isanzwe, ibi ni3.65Vkuri buri selile). KuyikosorahejuruUburyo selile zikoresha mu gucecekesha ingendo zigaragaza ikibazo nyakuri ntabwo ari bwo - butuma selile zitwarwa zirenze ingufu ntarengwa, bikihutisha kwangirika no, mu bihe bikomeye, bigatera ibyago by'umutekano. Kosora impamvu y'ingendo aho kuzamura urugero rw'uburyo selile zikoresha.
Uturemangingo tumwe duhora dutera OVP mbere na mbere. Ese tugomba gusimburwa?
Si ngombwa. Akaremangingo gahora gagera kuri OVP mbere mu gihe cyo gusharija ni akaremangingo gafite ubushobozi bwo hasi bwo kurinda imbere, ubushobozi buke busigaye, cyangwa byombi - kabanza kuzura.Akaremangingo kagomba gusimburwa niko kagera ku muvuduko wa volteji utari munsi ya volteji mberemu gihe cyo gusezererwa(ubushobozi buke cyangwa ubushobozi bwo guhangana n'umutwaro mwinshi), ntabwo ari yo ishyushya vuba cyane. Kugira ngo utandukanye ibi, reba impande zombi z'uruziga muri porogaramu ya BMS: hejuru y'ingufu ku turemangingo twa OVP-first, hasi y'ingufu ku turemangingo twa UVP-first. Kugereranya neza bikomeza ipaki igororotse hatitawe ku turemangingo dukunda kuzuza mbere, bigatuma hasubikwa gusimburwa.
BMS yanjye ifite uburyo bwo kuringaniza ibintu mu buryo butarimo uburyaryate n'uburyo bukora - ni iki kirimo gukora akazi?
Ibikoresho byinshi bisanzwe bya Smart BMS bikoresha uburyo bwo guhuza ibintu (passive balancing) - umuyoboro muto w'amaraso (ubusanzwe uva ku mirongo kugeza ku magana ya mA) ukora iyo selile irenze urugero rw'umurongo wo gutangira kuringaniza hafi y'umurongo wo hejuru w'amashanyarazi. DALY Active Balancing series ikoresha uburyo bwo kohereza umuriro (ubusanzwe uva ku bwoko bwa multiple-amp) kandi ikora mu gihe cyose cyo gushyushya, atari hejuru gusa. Ku bijyanye no kudahuza neza no gushyushya buhoro buhoro, passive irahagije. Ku mapaki agaragaza ko ahora ahindagurika hagati y'amasaha, active balancing ni inzira yo kuvugurura. Twoherereze ipaki yawe hanyuma ukoreshe urugero kugirango tugufashe.
Incamake: Icyitegererezo → Impamvu → Gukosora
| Ishusho | Impamvu | Kosora |
|---|---|---|
| Akaremangingo kamwe gahora gakubita OVP; utundi turi munsi yako | Kutagera ku ngirabuzimafatizo — ingirabuzimafatizo imwe yihuta cyane | Imyitozo yo kuringaniza ibintu mu buryo bukora cyangwa igihe cyo gushyushya buhoro buhoro |
| Uturemangingo twose twegera OVP hamwe | Umuvuduko w'amashanyarazi uri hejuru cyane | Kugabanya charger isohoka kugira ngo ihuze n'ibipimo bya paki |
| OVP ku muvuduko usa nkaho uri hasi cyane | Umupaka washyizweho nabi | Reba kandi ukosore umubare w'abatishoboye (OVP) mu igenamiterere rya BMS |
| OVP mu bidukikije bishyushye mu gihe ubushyuhe budatuje | Uburinzi bw'ubushyuhe bwashyizweho nabi | Emeza ko ingano y'uburinzi bw'ingufu ziterwa n'ubushyuhe bwinshi |
Ukeneye BMS igaragara ku mpamvu nyayo mu masegonda make?
Twoherereze nimero enye maze tuzakugira inama yo gukoresha DALY Smart BMS ikwiye kuri paki yawe — hamwe no kureba kuri buri selile hamwe n'ingamba zikwiye zo kuringaniza imiterere yawe y'ubusumbane.
- Voltage ya sisitemu (12V / 24V / 48V / 72V cyangwa isanzwe)
- Umubare w'uturemangingo mu ruhererekane (S)
- Ubushobozi bwo gukoresha (Ah)
- Gukoresha (ububiko bw'izuba / EV / e-bike / UPS / inganda)
Shaka inama yo gushyiraho uburyo bwo kuyitunganya
Igisubizo mu masaha 24 · Itsinda ry'abahanga, ntabwo ari inyandiko y'ubucuruzi
Kugira ngo umenye neza ibijyanye no gusuzuma ibibazo bya BMS bifitanye isano, reba ubuyobozi bwacu kuriuburyo bwo gusuzuma ikibazo cy'itumanaho rya BMSnakuringaniza imikorere cyangwa kudakora kuri passive kuri LiFePO4 packs.
Inyandiko ku buvuzi bw'umwimerere
Umuvuduko ntarengwa wa LFP cell charge wa 3.65V/cell uhora ugaragazwa ku mbuga zose cumi n'imwe zigenga zavuzwe haruguru (reba 1-11) kandi uhuye n'ibisobanuro by'ibanze bya CATL / EVE / CALB. Aka gaciro kafashwe nk'ikemejwe byuzuye.
Ibisobanuro by'ubushobozi bw'ibicuruzwa by'imbere (kwerekana kuri buri selile, amateka, imyitwarire yo kuringaniza) bisobanurwa mu buryo bw'ireme mu ngingo aho gusobanura agaciro k'imibare yihariye (ubuziranenge bwa mV, igipimo cyo kuvugurura, ubushobozi bwo kubika ibintu, kuringaniza amanota y'ubushyuhe), hategerejwe kwemeza ibyo bisobanuro mu buhanga.
Igice cya Cause 4 (Ubushyuhe) cyashyizwe ku bushake ku bijyanye no kudahuza neza hagati y’ubushyuhe n’uburinzi aho kuba ukubera ko amashanyarazi ashingiye ku bushyuhe buziguye, kuko inyandiko za LFP zisanzwe zidashyigikira isano isobanutse y’ikigereranyo cy’uburyo "ubushyuhe buzamuka X°C → kwiyongera k’umuvuduko w’uturemangingo Y mV" mu gihe cyo gusharija. Urupapuro rwatoranyijwe hano rubuza abakoresha gusuzuma nabi ikibazo cy’ubushyuhe nk’ikibazo cy’umuvuduko w’amashanyarazi.
Igihe cyo kohereza: Gicurasi-09-2026
