Yintoni inkqubo yolawulo lwebhetri (i-BMS)?
Igama elipheleleyo likaI-BMSyiNkqubo yoLawulo lweBhetri, inkqubo yolawulo lwebhetri. Sisixhobo esisebenzisana nokubeka esweni imeko yebhetri yokugcina amandla. Ngokuyintloko senzelwe ulawulo olukrelekrele kunye nokugcinwa kweyunithi nganye yebhetri, ukuthintela ibhetri ekutshajeni kakhulu nasekukhupheni kakhulu, ukwandisa ubomi benkonzo yebhetri, kunye nokubeka esweni imeko yebhetri. Ngokubanzi, i-BMS imelwa njengebhodi yesekethe okanye ibhokisi yehardware.
I-BMS yenye yezona nkqubo ziphambili zenkqubo yokugcina amandla ebhetri. Inoxanduva lokujonga imeko yokusebenza kwebhetri nganye kwiindawo yokugcina amandla ebhetriiyunithi ukuqinisekisa ukusebenza okukhuselekileyo nokuthembekileyo kweyunithi yokugcina amandla. I-BMS inokujonga kwaye iqokelele iiparameter zemeko yebhetri yokugcina amandla ngexesha langempela (kubandakanya kodwa kungaphelelanga kwi-voltage yebhetri enye, ubushushu bepali yebhetri, umbane wesekethe yebhetri, i-terminal voltage yephakheji yebhetri, ukumelana nobushushu kwenkqubo yebhetri, njl.njl.), kwaye yenze kube yimfuneko Ngokwe-analysis kunye ne-calculation yenkqubo, kufunyenwe iiparameter ezininzi zovavanyo lwemeko yenkqubo, kunye nolawulo olusebenzayo lwe-ibhetri yokugcina amandlaumzimba ufezekiswa ngokwesicwangciso esithile solawulo lokhuseleko, ukuqinisekisa ukusebenza okukhuselekileyo nokuthembekileyo kweyunithi yokugcina amandla ebhetri yonke. Kwangaxeshanye, i-BMS inokutshintshiselana ngolwazi nezinye izixhobo zangaphandle (i-PCS, i-EMS, inkqubo yokukhusela umlilo, njl.njl.) ngokusebenzisa ujongano lwayo lonxibelelwano, igalelo le-analog/digital, kunye nojongano lokufaka, kwaye yenze ulawulo lonxibelelwano lweenkqubo ezahlukeneyo kwisikhululo samandla sokugcina amandla sonke ukuqinisekisa ukhuseleko kunye nokuthembeka kwesikhululo samandla, Ukusebenza okusebenzayo okuqhagamshelwe kwigridi.
Yintoni umsebenzi weI-BMS?
Kukho imisebenzi emininzi ye-BMS, kwaye eyona iphambili, esixhalabele kakhulu, ayizizo izinto ezingaphezu kwezintathu: ulawulo lwemeko, ulawulo lwebhalansi, kunye nolawulo lokhuseleko.
Umsebenzi wolawulo lukaRhulumenteinkqubo yolawulo lwebhetri
Sifuna ukwazi ukuba injani imeko yebhetri, ingakanani i-voltage, ingakanani amandla, ingakanani umthamo, kwaye ingakanani itshaja kunye nomsinga wokukhupha, kwaye umsebenzi wolawulo lwemeko ye-BMS uza kusixelela impendulo. Umsebenzi osisiseko we-BMS kukulinganisa nokuqikelela iiparameter zebhetri, kubandakanya iiparameter ezisisiseko kunye neemeko ezifana ne-voltage, umsinga, kunye nobushushu, kunye nokubalwa kwedatha yemeko yebhetri efana ne-SOC kunye ne-SOH.
Ukulinganiswa kweeseli
Ukulinganisa ulwazi olusisiseko: Umsebenzi osisiseko wenkqubo yolawulo lwebhetri kukulinganisa i-voltage, i-current, kunye nobushushu beseli yebhetri, nto leyo esisiseko sokubala kunye nengqiqo yokulawula yenqanaba eliphezulu yazo zonke iinkqubo zolawulo lwebhetri.
Ukuchonga ukumelana nobushushu: Kwinkqubo yolawulo lwebhetri, kufuneka kufunyanwe ubushushu benkqubo yebhetri yonke kunye nenkqubo ye-voltage ephezulu.
Ubalo lwe-SOC
I-SOC ibhekisa kwiMeko yokuTshaja, umthamo oseleyo webhetri. Ngamafutshane, kubungakanani bamandla aseleyo ebhetri.
I-SOC yeyona parameter ibalulekileyo kwi-BMS, kuba yonke enye into isekelwe kwi-SOC, ngoko ke ukuchaneka kwayo kubaluleke kakhulu. Ukuba akukho SOC ichanekileyo, akukho misebenzi yokukhusela inokwenza i-BMS isebenze ngokuqhelekileyo, kuba ibhetri ihlala ikhuselekile, kwaye ubomi bebhetri abunakwandiswa.
Iindlela zokuqikelela ze-SOC eziphambili ngoku ziquka indlela ye-open circuit voltage, indlela yokudibanisa yangoku, indlela yesihluzi seKalman, kunye nendlela yenethiwekhi ye-neural. Ezimbini zokuqala zisetyenziswa kakhulu.
Umsebenzi wolawulo lwebhalansiinkqubo yolawulo lwebhetri
Ibhetri nganye "inobuntu" bayo. Ukuthetha ngokulinganisela, kufuneka siqale ngebhetri. Neebhetri eziveliswa ngumvelisi omnye kwibhetshi enye zinomjikelo wazo wobomi kunye "nobuntu" bazo-umthamo webhetri nganye awunakufana ncakasana. Kukho iintlobo ezimbini zezizathu zokungangqinelani:
Ukungangqinelani kwimveliso yeeseli kunye nokungangqinelani kwiimpendulo ze-electrochemical
ukungangqinelani kwemveliso
Ukungangqinelani kwemveliso kuyaqondakala kakuhle. Umzekelo, kwinkqubo yemveliso, i-separator, i-cathode, kunye nezinto ze-anode azihambelani, nto leyo ebangela ukungangqinelani komthamo webhetri iyonke.
Ukungangqinelani kweekhemikhali zombane kuthetha ukuba kwinkqubo yokutshaja nokukhupha ibhetri, nokuba imveliso kunye nokucutshungulwa kweebhetri ezimbini ziyafana, imeko-bume yobushushu ayinakuze ihambelane ngexesha lokusabela kwe-electrochemical.
Siyazi ukuba ukutshaja kakhulu nokukhutshelwa ngaphandle kwebhetri kunokwenza umonakalo omkhulu kwibhetri. Ke ngoko, xa ibhetri B itshajiwe ngokupheleleyo xa itshaja, okanye i-SOC yebhetri B sele iphantsi kakhulu xa itshaja, kuyimfuneko ukuyeka ukutshaja nokukhupha ukuze kukhuselwe ibhetri B, kwaye amandla ebhetri A kunye nebhetri C awakwazi ukusetyenziswa ngokupheleleyo. Oku kuphumela koku:
Okokuqala, amandla okwenyani asebenzisekayo ebhetri anciphile: amandla awayenokusetyenziswa ziibhetri u-A no-C, kodwa ngoku akukho ndawo yokusebenzisa amandla okunyamekela u-B, njengokuba abantu ababini nemilenze emithathu bebopha umde nomfutshane kunye, kwaye amanyathelo omde acotha. Andikwazi ukwenza inyathelo elikhulu.
Okwesibini, ubomi bebhetri buyancipha: inyathelo lincinci, inani lamanyathelo afunekayo ukuhanjwa lingaphezulu, kwaye imilenze iyadinwa ngakumbi; umthamo uyancipha, kwaye inani lemijikelo ekufuneka itshajwe kwaye ikhutshwe liyanda, kwaye nokuncipha kwebhetri nako kukhulu. Umzekelo, iseli enye yebhetri inokufikelela kwimijikelo engama-4000 phantsi kwemeko yokutshajwa kunye nokukhutshwa kwe-100%, kodwa ayinakufikelela kwi-100% ekusetyenzisweni kwayo, kwaye inani lemijikelo akufuneki lifikelele kwi-4000 amaxesha.
Kukho iindlela ezimbini eziphambili zokulinganisela ze-BMS, ukulinganisela okungasebenziyo kunye nokulinganisela okusebenzayo.
Umbane we-equalization engashukumiyo umncinci kakhulu, njengombane we-equalization onikezelwa yi-DALY BMS, onombane olinganiselayo we-30mA kuphela kunye nexesha elide lokulinganisa i-voltage yebhetri.
Umsinga wokulinganisela osebenzayo mkhulu kakhulu, njengei-balancer esebenzayoyenziwe yiDALY BMS, efikelela kumbane wokulinganisela we-1A kwaye inexesha elifutshane lokulinganisela i-voltage yebhetri.
Umsebenzi wokukhuselainkqubo yolawulo lwebhetri
Isikrini se-BMS sihambelana nezixhobo zenkqubo yombane. Ngokweemeko ezahlukeneyo zokusebenza kwebhetri, yahlulwe ngokwamanqanaba ahlukeneyo empazamo (iimpazamo ezincinci, iimpazamo ezinkulu, iimpazamo ezibulalayo), kwaye amanyathelo ahlukeneyo okucubungula athathwa phantsi kwamanqanaba ahlukeneyo empazamo: isilumkiso, umda wamandla okanye ukunqumla i-voltage ephezulu ngokuthe ngqo. Iimpazamo ziquka ukufunyanwa kwedatha kunye neempazamo zokunokwenzeka, iimpazamo zombane (ii-sensors kunye nee-actuators), iimpazamo zonxibelelwano, kunye neempazamo zesimo sebhetri.
Umzekelo oqhelekileyo kukuba xa ibhetri ishushu kakhulu, i-BMS igweba ukuba ibhetri ishushu kakhulu ngokusekelwe kubushushu bebhetri obuqokelelweyo, kwaye emva koko isekethe elawula ibhetri iyanqanyulwa ukuze yenze ukhuseleko lobushushu obugqithisileyo kwaye ithumele i-alamu kwi-EMS nakwezinye iinkqubo zolawulo.
Kutheni ufanele ukhethe i-DALY BMS?
I-DALY BMS, yenye yezona mveliso zinkulu zolawulo lwebhetri (BMS) eTshayina, inabasebenzi abangaphezu kwama-800, indawo yokusebenzela yemveliso engama-20,000 square metres kunye neenjineli ze-R&D ezingaphezu kwe-100. Iimveliso ezivela kwiDaly zithunyelwa kumazwe nakwimimandla engaphezu kwe-150.
Umsebenzi wokhuseleko lobuchwephesha
Ibhodi ehlakaniphileyo kunye nebhodi yehardware ziqulathe imisebenzi yokukhusela emithandathu ephambili:
Ukhuseleko lokutshaja kakhulu: Xa i-voltage yeseli yebhetri okanye i-voltage yephakheji yebhetri ifikelela kwinqanaba lokuqala le-voltage yokutshaja kakhulu, umyalezo wesilumkiso uya kukhutshwa, kwaye xa i-voltage ifikelela kwinqanaba lesibini le-voltage yokutshaja kakhulu, i-DALY BMS iya kuyicima ngokuzenzekelayo i-power supply.
Ukhuseleko lokukhupha umbane ngokugqithisileyo: Xa i-voltage yeseli yebhetri okanye ipakethi yebhetri ifikelela kwinqanaba lokuqala le-voltage ekhupha umbane ngokugqithisileyo, umyalezo wesilumkiso uya kukhutshwa. Xa i-voltage ifikelela kwinqanaba lesibini le-voltage ekhupha umbane ngokugqithisileyo, i-DALY BMS iya kuyicima ngokuzenzekelayo i-power supply.
Ukhuseleko lombane ogqithisileyo: Xa umbane okhutshwa yibhetri okanye umbane wokutshaja ufikelela kwinqanaba lokuqala lombane ogqithisileyo, umyalezo wesilumkiso uya kukhutshwa, kwaye xa umbane ufikelela kwinqanaba lesibini lombane ogqithisileyo, iDALY BMS iya kuwucima ngokuzenzekelayo umbane.
Ukhuseleko lobushushu: Iibhetri zeLithium azikwazi ukusebenza ngokuqhelekileyo phantsi kweemeko zobushushu eziphezulu neziphantsi. Xa ubushushu bebhetri buphezulu kakhulu okanye buphantsi kakhulu ukuba bufikelele kwinqanaba lokuqala, kuya kukhutshwa umyalezo wesilumkiso, kwaye xa bufikelela kwinqanaba lesibini, iDALY BMS iya kuyicima ngokuzenzekelayo i-power supply.
Ukhuseleko lwesekethe emfutshane: Xa isethe ijikeleziswa ngokukhawuleza, umbane uyanda ngoko nangoko, kwaye i-DALY BMS iya kuyicima ngokuzenzekelayo i-power supply
Umsebenzi wolawulo lwebhalansi yobungcali
Ulawulo olulinganiselayo: Ukuba umahluko we-voltage yeseli yebhetri mkhulu kakhulu, uya kuchaphazela ukusetyenziswa kwebhetri okuqhelekileyo. Umzekelo, ibhetri ikhuselekile ekutshajisweni kakhulu kwangaphambili, kwaye ibhetri ayitshajiswanga ngokupheleleyo, okanye ibhetri ikhuselekile ekukhutshweni kakhulu kwangaphambili, kwaye ibhetri ayinakukhutshwa ngokupheleleyo. I-DALY BMS inomsebenzi wayo wokulinganisa ongasebenziyo, kwaye ikwaphuhlise imodyuli esebenzayo yokulinganisa. Umbane ophezulu wokulinganisa ufikelela kwi-1A, enokwandisa ubomi benkonzo yebhetri kwaye iqinisekise ukusetyenziswa kwebhetri okuqhelekileyo.
Umsebenzi wolawulo lukarhulumente wobuchwephesha kunye nomsebenzi wonxibelelwano
Umsebenzi wolawulo lwesimo unamandla, kwaye imveliso nganye ivavanywa ngokungqongqo komgangatho ngaphambi kokuba iphume kwifektri, kubandakanya uvavanyo lokufakelwa kwe-insulation, uvavanyo lokuchaneka kwangoku, uvavanyo lokuzivumelanisa nokusingqongileyo, njl. I-BMS ijonga i-voltage yeseli yebhetri, i-voltage iyonke yephakheji yebhetri, ubushushu bebhetri, i-charge current kunye ne-discharge current ngexesha langempela. Nika umsebenzi we-SOC ochanekileyo kakhulu, yamkela indlela yokudibanisa i-ampere-hour eqhelekileyo, impazamo yi-8% kuphela.
Ngeendlela ezintathu zonxibelelwano ze-UART/RS485/CAN, eziqhagamshelwe kwikhompyutha ephetheyo okanye kwisikrini sokuchukumisa, ibluetooth kunye nebhodi yokukhanya ukulawula ibhetri ye-lithium. Xhasa iiprotokholi zonxibelelwano ze-inverters eziphambili, ezifana neChina Tower, iGROWATT, iDEY E, iMU ST, iGOODWE, iSOFAR, iSRNE, iSMA, njl.
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