Menene tsarin sarrafa baturi (BMS)?
Cikakken sunanBMSshine Tsarin Gudanar da Baturi, tsarin sarrafa baturi.Na'urar ce da ke aiki tare da lura da yanayin baturin makamashi.Ya fi dacewa don kulawa da hankali da kula da kowace naúrar baturi, don hana batirin caji da yawa da yawa, da tsawaita rayuwar batir, da kuma lura da yanayin baturin.Gabaɗaya, ana wakilta BMS azaman allon kewayawa ko akwatin kayan aiki.
BMS ɗaya ne daga cikin tushen tsarin tsarin ajiyar makamashin baturi.Yana da alhakin lura da yanayin aiki na kowane baturi a cikinajiyar makamashin baturinaúrar don tabbatar da aiki mai aminci da aminci na sashin ajiyar makamashi.BMS na iya saka idanu da tattara ma'aunin yanayin baturin ajiyar makamashi a cikin ainihin-lokaci (ciki har da amma ba'a iyakance ga ƙarfin baturi ɗaya ba, zafin sandar baturi, yanayin da'irar baturi na yanzu, ƙarfin lantarki na ƙarshe na fakitin baturi, juriya na tsarin batir, da dai sauransu), kuma suna yin zama dole Bisa ga bincike da lissafin tsarin, ana samun ƙarin sigogin ƙimar tsarin tsarin, da ingantaccen iko nabaturin ajiyar makamashijiki yana samuwa ne bisa ƙayyadaddun dabarun sarrafa kariya, ta yadda za a tabbatar da amintaccen aiki da amintaccen aiki na duka rukunin ajiyar makamashin baturi.A lokaci guda, BMS na iya yin musayar bayanai tare da sauran kayan aiki na waje (PCS, EMS, tsarin kariyar wuta, da sauransu) ta hanyar sadarwar sadarwar ta, analog / shigarwar dijital, da shigar da bayanai, kuma ta samar da ikon haɗin kai na ƙananan tsarin daban-daban a cikin duk tashar wutar lantarki ta ajiyar makamashi don tabbatar da aminci da amincin tashar wutar lantarki, Ingantaccen aiki mai haɗin grid.
Menene aikinBMS?
Akwai ayyuka da yawa na BMS, kuma mafi mahimmanci, waɗanda muka fi damuwa da su, ba kome ba ne face abubuwa uku: sarrafa matsayi, sarrafa ma'auni, da kuma kula da aminci.
Aikin gudanarwa na Jiha natsarin sarrafa baturi
Muna so mu san menene yanayin baturi, menene ƙarfin lantarki, ƙarfin kuzari nawa, ƙarfin aiki, da menene caji da fitarwa na yanzu, kuma aikin gudanarwa na jihar BMS zai gaya mana amsar.Babban aikin BMS shine aunawa da ƙididdige sigogin baturi, gami da sigogi na asali da jihohi kamar ƙarfin lantarki, halin yanzu, da zafin jiki, da lissafin bayanan yanayin baturi kamar SOC da SOH.
Ma'aunin salula
Ma'auni na asali: Babban aikin tsarin sarrafa baturi shine auna ƙarfin lantarki, halin yanzu, da zafin jiki na tantanin halitta, wanda shine ginshiƙan ƙididdiga mafi girma da dabaru na sarrafa duk tsarin sarrafa baturi.
Ganewar juriya na insulation: A cikin tsarin sarrafa baturi, ana buƙatar gano ɓoyayyiyar tsarin batir gabaɗaya da babban tsarin wutar lantarki.
Lissafin SOC
SOC yana nufin Yanayin Caji, ragowar ƙarfin baturi.A taƙaice, yawan ƙarfin da ya rage a cikin baturi.
SOC shine ma'auni mafi mahimmanci a cikin BMS, saboda komai yana dogara ne akan SOC, don haka daidaito yana da mahimmanci.Idan babu cikakken SOC, babu adadin ayyukan kariya da zai iya sa BMS yayi aiki akai-akai, saboda yawancin baturin za a kiyaye shi, kuma ba za a iya tsawaita rayuwar baturin ba.
Hanyoyin ƙididdigar SOC na yau da kullun sun haɗa da hanyar buɗe wutar lantarki, hanyar haɗin kai na yanzu, Hanyar tace Kalman, da hanyar hanyar sadarwa ta jijiyoyi.Biyu na farko an fi amfani da su.
Ayyukan gudanarwa na ma'auni natsarin sarrafa baturi
Kowane baturi yana da nasa “halli”.Don magana game da ma'auni, dole ne mu fara da baturi.Hatta batura da masana'anta iri ɗaya suka samar a cikin bashi ɗaya suna da nasu tsarin rayuwarsu da nasu "halayen" - ƙarfin kowane baturi ba zai iya zama daidai ba.Akwai dalilai iri biyu na wannan rashin daidaituwa:
Rashin daidaituwa a cikin samar da kwayar halitta da rashin daidaituwa a cikin halayen lantarki
rashin daidaituwar samarwa
Rashin daidaituwa na samarwa yana fahimta sosai.Alal misali, a cikin tsarin samarwa, masu rarraba, cathode, da kayan anode ba su da daidaituwa, yana haifar da rashin daidaituwa a cikin ƙarfin baturi.
Rashin daidaituwar sinadaran lantarki yana nufin cewa yayin aiwatar da caji da cajin baturi, ko da samarwa da sarrafa batura biyu iri ɗaya ne, yanayin yanayin zafi ba zai taɓa kasancewa daidai ba yayin halayen lantarki.
Mun san cewa yin caji da yawa da kuma fitar da kaya na iya yin babbar illa ga baturin.Saboda haka, lokacin da baturi B ya cika lokacin caji, ko SOC na baturi B ya riga ya yi ƙasa sosai lokacin da ake fitarwa, wajibi ne a dakatar da caji da caji don kare baturi B, kuma ƙarfin baturi A da baturi C ba za a iya amfani da su gaba ɗaya ba. .Wannan yana haifar da:
Da fari dai, ainihin ƙarfin da ake iya amfani da shi na fakitin baturi ya ragu: ƙarfin da batura A da C za su iya amfani da su, amma yanzu babu inda za a yi amfani da karfi don kula da B, kamar yadda mutane biyu da ƙafafu uku ke ɗaure tsayi da tsayi. gajere tare, kuma tsayin matakansa suna sannu.Ba za a iya yin babban ci gaba ba.
Abu na biyu, Rayuwar batirin baturi ya ragu: tafiya yana da ƙananan, yawan matakan da ake bukata don tafiya ya fi yawa, kuma kafafu sun fi gajiya;ƙarfin yana raguwa, kuma adadin zagayowar da ake buƙatar caji da fitarwa yana ƙaruwa, kuma raguwar baturi shima ya fi girma.Misali, tantanin halitta guda ɗaya na iya kaiwa zagaye 4000 a ƙarƙashin yanayin cajin 100% da fitarwa, amma ba zai iya kaiwa 100% a ainihin amfani ba, kuma adadin zagayowar bazai kai sau 4000 ba.
Akwai manyan hanyoyin daidaitawa guda biyu don BMS, daidaita ma'auni da daidaita aiki.
Halin halin yanzu don daidaitawa mara iyaka yana da ɗan ƙaramin ƙarfi, kamar daidaitaccen daidaituwa wanda DALY BMS ya bayar, wanda ke da daidaitaccen halin yanzu na 30mA kawai da tsayin lokacin daidaita wutar lantarki.
Aiki daidaita halin yanzu yana da girman gaske, kamar sumai aiki balancerDALY BMS ya haɓaka, wanda ya kai madaidaicin halin yanzu na 1A kuma yana da ɗan gajeren lokacin daidaita wutar lantarki.
Ayyukan kariya natsarin sarrafa baturi
Mai saka idanu BMS yayi daidai da kayan aikin tsarin lantarki.Dangane da yanayin aiki daban-daban na baturin, an raba shi zuwa matakan kuskure daban-daban (ƙananan laifuffuka, manyan laifuffuka, laifuffuka masu mutuwa), kuma ana ɗaukar matakan sarrafawa daban-daban ƙarƙashin matakan kuskure daban-daban: faɗakarwa, iyakancewar wuta ko yanke babban ƙarfin lantarki kai tsaye. .Laifi sun haɗa da sayan bayanai da kurakuran sahihanci, ɓangarorin lantarki (ma'auni da masu kunnawa), kuskuren sadarwa, da nakasukan matsayin baturi.
Misali na yau da kullun shine lokacin da baturi ya yi zafi sosai, BMS suna yin hukunci cewa baturin ya yi zafi bisa la'akari da zafin baturin da aka tattara, sannan a cire haɗin da ke kula da baturin don yin kariya mai zafi da aika ƙararrawa zuwa EMS da sauran tsarin gudanarwa.
Me yasa za a zabi DALY BMS?
DALY BMS, yana daya daga cikin manyan masana'antun sarrafa batir (BMS) a kasar Sin, yana da ma'aikata sama da 800, taron samar da kayayyaki na murabba'in mita 20,000 da injiniyoyi sama da 100 na R&D.Ana fitar da samfuran daga Daly zuwa ƙasashe da yankuna fiye da 150.
Ayyukan kariyar tsaro na sana'a
Allon wayo da allon kayan aiki sun ƙunshi manyan ayyuka na kariya guda 6:
Kariyar yawan caji: Lokacin da wutar lantarki ta cell baturi ko baturi ya kai matakin farko na overcharge volt, za a fitar da sakon gargadi, kuma idan wutar lantarki ta kai mataki na biyu na karfin wutar lantarki, DALY BMS za ta cire haɗin wutar lantarki kai tsaye.
Kariyar yawan zubar da ruwa: Lokacin da ƙarfin wutar lantarki na cell ɗin baturi ko fakitin baturi ya kai matakin farko na ƙarar wutar lantarki, za a ba da saƙon gargaɗi.Lokacin da ƙarfin lantarki ya kai matakin na biyu na ƙarfin jujjuyawar sama da ƙasa, DALY BMS za ta cire haɗin wutar lantarki ta atomatik.
Kariyar fiye da yanzu: Lokacin fitar da baturi na yanzu ko cajin halin yanzu ya kai matakin farko na over-current, za a fitar da sakon gargadi, kuma idan na yanzu ya kai mataki na biyu na fiye da halin yanzu, DALY BMS za ta cire haɗin wutar lantarki kai tsaye. .
Kariyar yanayin zafi: Batirin lithium ba zai iya aiki akai-akai ƙarƙashin babban yanayin zafi da ƙarancin zafi.Lokacin da zafin baturi ya yi yawa ko kuma ya yi ƙasa sosai don isa matakin farko, za a fitar da saƙon gargaɗi, kuma idan ya kai mataki na biyu, DALY BMS zai yanke wutar lantarki kai tsaye.
Kariyar gajeriyar kewayawa: Lokacin da kewayawar ke da ɗan gajeren kewayawa, halin yanzu yana ƙaruwa nan take, kuma DALY BMS za ta cire haɗin wutar lantarki ta atomatik.
Ayyukan sarrafa ma'auni na sana'a
Ma'auni mai daidaitawa: Idan bambancin ƙarfin ƙarfin baturi ya yi girma sosai, zai shafi yadda ake amfani da baturi na yau da kullun.Misali, ana kiyaye baturin daga yin caji a gaba, kuma baturin bai cika caja ba, ko kuma an kiyaye baturin daga wuce gona da iri a gaba, kuma baturin ba zai iya cikawa ba.DALY BMS yana da nasa aikin daidaita madaidaici, kuma ya ƙirƙiri tsarin daidaitawa mai aiki.Matsakaicin daidaiton halin yanzu ya kai 1A, wanda zai iya tsawaita rayuwar batirin kuma tabbatar da amfani da baturi na yau da kullun.
ƙwararrun aikin gudanarwa na jihar da aikin sadarwa
Ayyukan gudanarwa na matsayi yana da ƙarfi, kuma kowane samfurin yana fuskantar ƙayyadaddun gwajin inganci kafin barin masana'anta, gami da gwajin rufi, gwajin daidaito na yanzu, gwajin daidaita yanayin muhalli, da sauransu. fitar da halin yanzu a ainihin lokacin.Samar da babban madaidaicin aikin SOC, ɗauki hanyar haɗakarwa ta ampere-hour na yau da kullun, kuskuren shine kawai 8%.
Ta hanyar hanyoyin sadarwa guda uku na UART / RS485 / CAN, an haɗa su zuwa kwamfutar mai watsa shiri ko allon taɓawa, bluetooth da allon haske don sarrafa batirin lithium.Goyan bayan ka'idojin sadarwa na inverters na al'ada, kamar China Tower, GROWATT, DEY E, MU ST, GOODWE, SOFAR, SRNE, SMA, da sauransu.
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Lokacin aikawa: Mayu-14-2023