Yini uhlelo lokuphatha ibhethri (BMS)?
Igama eliphelele leI-BMSi-Battery Management System, uhlelo lokuphatha ibhethri. Kuyidivayisi esebenzisana nokuqapha isimo sebhethri yokulondoloza amandla. Ikakhulukazi ingeyokuphatha nokugcinwa okuhlakaniphile kweyunithi yebhethri ngayinye, ukuvimbela ibhethri ekushajweni ngokweqile nasekuchitheni ngokweqile, ukwelula impilo yesevisi yebhethri, nokuqapha isimo sebhethri. Ngokuvamile, i-BMS imelelwa njengebhodi lesifunda noma ibhokisi lehadiwe.
I-BMS ingenye yezinhlelo ezingaphansi eziyinhloko zesistimu yokugcina amandla ebhethri. Inesibopho sokuqapha isimo sokusebenza sebhethri ngalinye kuisitoreji samandla ebhethriiyunithi yokuqinisekisa ukusebenza okuphephile nokuthembekile kweyunithi yokugcina amandla. I-BMS ingakwazi ukuqapha futhi iqoqe amapharamitha wombuso webhethri yokugcina amandla ngesikhathi sangempela (okuhlanganisa kodwa kungagcini ku-voltage yebhethri elilodwa, izinga lokushisa le-pole yebhethri, i-current of the battery circuit, i-terminal voltage yebhethri. iphakethe lebhethri, ukumelana nokufakwa kwe-insulation kohlelo lwebhethri, njll.), nokwenza kudingeke Ngokokuhlaziywa nokubalwa kwesistimu, kutholwa imingcele yokuhlola isimo sohlelo, kanye nokulawulwa ngempumelelo kwesistimu.ibhethri yokugcina amandlaumzimba wenziwa ngokuya ngesu elithile lokulawula ukuvikela, ukuze kuqinisekiswe ukusebenza okuphephile nokuthembekile kwayo yonke iyunithi yokugcina amandla ebhethri. Ngesikhathi esifanayo, i-BMS ingashintshanisa ulwazi nezinye izinto zokusebenza zangaphandle (i-PCS, i-EMS, uhlelo lokuvikela umlilo, njll.) ngokusebenzisa isixhumi esibonakalayo sayo sokuxhumana, okokufaka kwe-analog/digital, kanye nesixhumi esibonakalayo sokufaka, futhi yakhe ukulawulwa kokuxhumana kwezinhlelo ezingaphansi ezihlukahlukene ku sonke isiteshi samandla okugcina amandla ukuze kuqinisekiswe ukuphepha nokwethembeka kwesiteshi sikagesi, Ukusebenza okuphumelelayo okuxhunywe kwigridi.
Uyini umsebenzi weI-BMS?
Miningi imisebenzi ye-BMS, futhi ewumgogodla, esikhathazeke ngayo kakhulu, ayilutho ngaphandle kwezici ezintathu: ukuphathwa kwesimo, ukuphathwa kwebhalansi, nokuphathwa kokuphepha.
Umsebenzi wokuphatha wombuso weuhlelo lokuphatha ibhethri
Sifuna ukwazi ukuthi siyini isimo sebhethri, iyini i-voltage, mangakanani amandla, mangakanani umthamo, futhi iyini amandla okushaja nokukhipha amandla, kanye nomsebenzi wokuphatha wombuso we-BMS uzositshela impendulo. Umsebenzi oyisisekelo we-BMS ukulinganisa nokulinganisa amapharamitha ebhethri, okuhlanganisa amapharamitha ayisisekelo nezimo ezifana ne-voltage, yamanje, nezinga lokushisa, kanye nokubalwa kwedatha yesimo sebhethri njenge-SOC ne-SOH.
Isilinganiso seseli
Isilinganiso solwazi oluyisisekelo: Umsebenzi oyisisekelo kakhulu wesistimu yokuphatha ibhethri ukukala amandla kagesi, amandla amanje, kanye nezinga lokushisa kweseli yebhethri, okuyisisekelo sezinga eliphezulu lokubala nokulawula ukuqonda kwawo wonke amasistimu okuphatha amabhethri.
Ukutholwa kokumelana nokushisisa: Kuhlelo lokuphatha ibhethri, ukutholwa kwe-insulation yalo lonke uhlelo lwebhethri kanye nesistimu ye-high-voltage kuyadingeka.
SOC ukubala
I-SOC isho Isimo Sokushaja, umthamo osele webhethri. Kalula nje, ukuthi mangakanani amandla asele ebhethrini.
I-SOC iyipharamitha ebaluleke kakhulu ku-BMS, ngoba konke okunye kusekelwe ku-SOC, ngakho ukunemba kwayo kubaluleke kakhulu. Uma ingekho i-SOC enembile, alikho inani lemisebenzi yokuvikela engenza i-BMS isebenze ngokujwayelekile, ngoba ibhethri lizovikeleka kaningi, nempilo yebhethri ayikwazi ukunwetshwa.
Izindlela zamanje zokulinganisa ze-SOC ezivamile zifaka indlela kagesi yesekethe evulekile, indlela yamanje yokuhlanganisa, indlela yokuhlunga ye-Kalman, kanye nendlela yenethiwekhi ye-neural. Amabili okuqala asetshenziswa kakhulu.
Umsebenzi wokuphatha ibhalansi weuhlelo lokuphatha ibhethri
Ibhethri ngalinye linobuntu bayo ". Ukuze sikhulume ngebhalansi, kufanele siqale ngebhethri. Ngisho namabhethri akhiqizwa umkhiqizi ofanayo eqoqweni elifanayo anomjikelezo wawo wokuphila kanye "nobuntu" bawo -umthamo webhethri ngalinye awukwazi ukufana ncamashi. Kunezinhlobo ezimbili zezizathu zalokhu kungahambisani:
Ukungahambisani nokukhiqizwa kwamaseli kanye nokungahambisani nokusabela kwe-electrochemical
ukungahambisani kokukhiqiza
Ukungahambisani kokukhiqiza kuqondwa kahle. Isibonelo, enqubweni yokukhiqiza, isihlukanisi, i-cathode, nezinto ze-anode azihambisani, okuholela ekushintshaneni komthamo webhethri lilonke.
Ukungahambisani kwamakhemikhali e-electrochemical kusho ukuthi ohlelweni lokushajwa nokushajwa kwebhethri, ngisho noma ukukhiqizwa nokucutshungulwa kwamabhethri amabili kufana ncamashi, indawo eshisayo ayikwazi ukuhambisana ngesikhathi sokusabela kwe-electrochemical.
Siyazi ukuthi ukushaja ngokweqile nokukhipha ngokweqile kungenza umonakalo omkhulu ebhethrini. Ngakho-ke, lapho ibhethri B ishajwe ngokugcwele lapho ishaja, noma i-SOC yebhethri B isivele iphansi kakhulu lapho ishajwa, kuyadingeka ukuyeka ukushaja nokukhipha ukuze kuvikelwe ibhethri B, namandla ebhethri A nebhethri C awakwazi ukusetshenziswa ngokugcwele. . Lokhu kubangela ukuthi:
Okokuqala, Umthamo wangempela osebenzisekayo wephakethe lebhethri uncishisiwe: umthamo amabhethri u-A no-C abengawusebenzisa, kodwa manje akukho ndawo lapho ungaphoqelela khona ukunakekela u-B, njengabantu ababili nemilenze emithathu ebopha ubude futhi mfushane ndawonye, futhi izinyathelo zomude zihamba kancane. Ayikwazi ukwenza izinyathelo ezinkulu.
Okwesibili, Ukuphila kwephakethe lebhethri kuncishisiwe: igxathu lincane, inani lezinyathelo ezidingekayo ukuze zihanjwe likhulu, futhi imilenze ikhathele kakhulu; umthamo uyancishiswa, futhi nenani lemijikelezo edinga ukushajwa futhi ikhishwe liyakhula, futhi ukuncipha kwebhethri nakho kukhulu. Isibonelo, iseli elilodwa lebhethri lingafinyelela imijikelezo ye-4000 ngaphansi kwesimo sokushaja okungu-100% nokukhishwa, kodwa alikwazi ukufinyelela ku-100% ekusetshenzisweni kwangempela, futhi inani lemijikelezo akufanele lifinyelele izikhathi ezingu-4000.
Kunezindlela ezimbili eziyinhloko zokulinganisa ze-BMS, ukulinganisa kokwenziwa kanye nokulinganisa okusebenzayo.
Eyamanje yokulinganisa kokwenziwa incane uma kuqhathaniswa, njengokulinganisa kokwenziwa okuhlinzekwa yi-DALY BMS, okunoxhaxha lwamanje olulinganayo lwama-30mA kuphela kanye nesikhathi sokulinganisa amandla kagesi webhethri ende.
I-bancing current esebenzayo inkulu ngokuqhathaniswa, njenge-ibhalansi esebenzayoithuthukiswe yi-DALY BMS, efinyelela ku-balance current ye-1A futhi inesikhathi esifushane sokulinganisa amandla kagesi webhethri.
Umsebenzi wokuvikela weuhlelo lokuphatha ibhethri
Imonitha ye-BMS ifana nehadiwe yesistimu kagesi. Ngokwezimo zokusebenza ezihlukene zebhethri, ihlukaniswe ngamaleveli amaphutha ahlukene (amaphutha amancane, amaphutha angathi sína, amaphutha abulalayo), futhi izinyathelo zokucubungula ezihlukene zithathwa ngaphansi kwamazinga amaphutha ahlukene: isixwayiso, umkhawulo wamandla noma ukunqanyulwa kwamandla kagesi aphezulu ngokuqondile. . Amaphutha ahlanganisa ukutholwa kwedatha namaphutha azwakalayo, amaphutha kagesi (izinzwa nama-actuator), amaphutha okuxhumana, namaphutha esimo sebhethri.
Isibonelo esivamile ukuthi lapho ibhethri lishise ngokweqile, i-BMS ihlulela ukuthi ibhethri lishise ngokweqile ngokusekelwe ekushiseni kwebhethri okuqoqiwe, bese isiyingi esilawula ibhethri siyanqanyulwa ukuze kuvikeleke ukushisa ngokweqile futhi ithumele i-alamu ku-EMS nakwezinye izinhlelo zokuphatha.
Kungani kufanele ukhethe i-DALY BMS?
I-DALY BMS, ingenye yabakhiqizi abakhulu besistimu yokuphatha amabhethri (BMS) eChina, inabasebenzi abangaphezu kuka-800, indawo yokusebenzela yokukhiqiza engu-20,000 square metres kanye nonjiniyela be-R&D abangaphezu kwe-100. Imikhiqizo evela kwaDaly ithunyelwa emazweni nasezifundeni ezingaphezu kuka-150.
Umsebenzi wokuvikela ukuphepha ochwepheshe
Ibhodi elihlakaniphile nebhodi lezingxenyekazi zekhompuyutha liqukethe imisebenzi eyisi-6 yokuvikela emikhulu:
Ukuvikela ukushajwa ngokweqile: Uma amandla kagesi ebhethri noma iphakethe lebhethri efika ezingeni lokuqala lamandla kagesi ashajwayo, kuzokhishwa umlayezo oyisixwayiso, futhi lapho i-voltage ifinyelela ezingeni lesibili lomthamo we-overcharge, i-DALY BMS izonqamula ugesi ngokuzenzakalelayo.
Ukuvikela ukukhishwa ngokweqile: Uma i-voltage yeseli yebhethri noma iphakethe lebhethri ifinyelela izinga lokuqala lamandla kagesi aphuma kakhulu, umyalezo oyisixwayiso uzokhishwa. Lapho i-voltage ifinyelela ezingeni lesibili le-voltage ekhipha kakhulu, i-DALY BMS izonqamula ugesi ngokuzenzakalelayo.
Ukuvikelwa kwamanje: Uma ibhethri elikhipha amandla lamanje noma lamanje lokushaja lifinyelela izinga lokuqala lesikhathi esidlule, umlayezo oyisixwayiso uzokhishwa, futhi uma owamanje ufinyelela izinga lesibili lokudlula kwamanje, i-DALY BMS izonqamula ugesi ngokuzenzakalelayo. .
Ukuvikelwa kwezinga lokushisa: Amabhethri e-lithium awakwazi ukusebenza ngokujwayelekile ngaphansi kwezimo zokushisa eziphezulu neziphansi. Uma izinga lokushisa lebhethri liphezulu kakhulu noma liphansi kakhulu ukufinyelela izinga lokuqala, umlayezo oyisixwayiso uzokhishwa, futhi uma ufika ezingeni lesibili, i-DALY BMS izonqamula ugesi ngokuzenzakalelayo.
Ukuvikelwa kwesekethe emfishane: Uma isekethe ine-circuited short-circuited, yamanje ikhula ngokushesha, futhi i-DALY BMS izonqamula ngokuzenzakalelayo ukunikezwa kwamandla.
Umsebenzi wokuphatha ibhalansi yobungcweti
Ukuphatha okunokulinganisela: Uma umehluko we-voltage yeseli yebhethri mkhulu kakhulu, uzophazamisa ukusetshenziswa okuvamile kwebhethri. Isibonelo, ibhethri ivikelwe ekushajweni ngokweqile kusenesikhathi, nebhethri alikashajwa ngokugcwele, noma ibhethri livikelwe ukuthi lingaphumi kakhulu kusenesikhathi, nebhethri alikwazi ukushajwa ngokugcwele. I-DALY BMS inomsebenzi wayo wokulinganisa wokulinganisa, futhi ithuthukise imojuli yokulinganisa esebenzayo. Ubukhulu bamanje bokulinganisa bufinyelela ku-1A, okunganweba impilo yesevisi yebhethri futhi kuqinisekise ukusetshenziswa okuvamile kwebhethri.
Umsebenzi wokuphatha wombuso wochwepheshe kanye nomsebenzi wokuxhumana
Umsebenzi wokuphatha isimo unamandla, futhi umkhiqizo ngamunye uhlolwa ikhwalithi eqinile ngaphambi kokuba uphume efekthri, okuhlanganisa ukuhlolwa kokufakwa ngaphakathi kwefekthri, ukuhlola ukunemba kwamanje, ukuhlola ukuguquguquka kwemvelo, njll. I-BMS iqapha amandla kagesi webhethri, ingqikithi yomthamo webhethri, izinga lokushisa lebhethri, amandla okushaja kanye ukukhishwa kwamanje ngesikhathi sangempela. Nikeza umsebenzi we-SOC wokunemba okuphezulu, sebenzisa indlela yokuhlanganisa yehora le-ampere evamile, iphutha lingu-8% kuphela.
Ngezindlela ezintathu zokuxhumana ze-UART/ RS485/ CAN, exhunywe kukhompuyutha yokusingatha noma isikrini sokuthinta, i-bluetooth nebhodi elikhanyayo ukuphatha ibhethri ye-lithium. Sekela izinqubo zokuxhumana zama-inverters ajwayelekile, njenge-China Tower, GROWATT, DEY E, MU ST, GOODWE, SOFAR, SRNE, SMA, njll.
Isitolo esisemthethwenihttps://dalelec.en.alibaba.com/
Iwebhusayithi esemthethwenihttps://dalybms.com/
Noma yimiphi eminye imibuzo, sicela usithinte ku:
Email:selina@dalyelec.com
Iselula/WeChat/WhatsApp : +86 15103874003
Isikhathi sokuthumela: May-14-2023
