Inkqubo yoLawulo lweeBhetri (i-BMS) idlala indima ebalulekileyo ekuqinisekiseni ukusebenza ngokukhuselekileyo nangokufanelekileyo kweebhetri ze-lithium-ion, kuquka iibhetri ze-LFP kunye ne-ternary lithium (i-NCM/NCA). Injongo yayo ephambili kukujonga nokulawula iiparameter ezahlukeneyo zebhetri, ezifana ne-voltage, ubushushu, kunye nombane, ukuqinisekisa ukuba ibhetri isebenza ngaphakathi kwemida ekhuselekileyo. I-BMS ikwakhusela ibhetri ekutshajisweni kakhulu, ekukhutshweni kakhulu, okanye ekusebenzeni ngaphandle komgangatho wayo wobushushu ofanelekileyo. Kwiipakethi zebhetri ezineeseli ezininzi (iintambo zebhetri), i-BMS ilawula ukulinganisela kweeseli nganye nganye. Xa i-BMS ingaphumeleli, ibhetri ishiywa isengozini, kwaye iziphumo zinokuba nzima.
1. Ukutshaja kakhulu okanye ukukhupha ngaphezulu
Omnye wemisebenzi ebalulekileyo ye-BMS kukuthintela ibhetri ukuba ingatshajiswa kakhulu okanye ikhutshwe kakhulu. Ukutshaja kakhulu kuyingozi kakhulu kwiibhetri ezixineneyo zamandla aphezulu ezifana ne-ternary lithium (NCM/NCA) ngenxa yokuba zisengozini yokubaleka kobushushu. Oku kwenzeka xa i-voltage yebhetri idlula imida ekhuselekileyo, nto leyo enokubangela ukuqhuma okanye umlilo. Ukutshaja kakhulu, kwelinye icala, kunokubangela umonakalo osisigxina kwiiseli, ingakumbi kwiibhetri ze-LFP, ezinokulahlekelwa ngumthamo kwaye zibonise ukusebenza kakubi emva kokukhupha okunzulu. Kuzo zombini ezi ntlobo, ukusilela kwe-BMS ukulawula i-voltage ngexesha lokutshaja nokukhupha kunokubangela umonakalo ongenakulungiseka kwiphakheji yebhetri.
2. Ubushushu obugqithisileyo kunye nokubaleka kobushushu
Iibhetri ze-lithium ze-Ternary (i-NCM/NCA) zinovelwano kakhulu kumaqondo obushushu aphezulu, ngaphezu kweebhetri ze-LFP, ezaziwa ngokuzinza okungcono kobushushu. Nangona kunjalo, zombini ezi ntlobo zifuna ulawulo olucokisekileyo lobushushu. I-BMS esebenzayo ijonga ubushushu bebhetri, iqinisekisa ukuba ihlala ngaphakathi koluhlu olukhuselekileyo. Ukuba i-BMS iyasilela, ubushushu bunokwenzeka, okubangela ukusabela okuyingozi kwetsheyini ebizwa ngokuba yi-thermal runaway. Kwipakethi yebhetri eyenziwe ngothotho lweeseli ezininzi (iintambo zebhetri), i-thermal runaway inokusasaza ngokukhawuleza ukusuka kwiseli enye ukuya kwenye, nto leyo ekhokelela ekusileleni okukhulu. Kwizicelo ze-high-voltage ezifana nezithuthi zombane, lo mngcipheko uyandiswa kuba uxinano lwamandla kunye nenani leeseli liphezulu kakhulu, okwandisa amathuba okuba nemiphumo emibi.
3. Ukungalingani Phakathi kweeSeli zeBhetri
Kwiibhetri zeeseli ezininzi, ingakumbi ezo zineendlela eziphezulu zombane ezifana nezithuthi zombane, ukulinganisela umbane phakathi kweeseli kubalulekile. I-BMS inoxanduva lokuqinisekisa ukuba zonke iiseli ezikwiphakheji zilungelelene. Ukuba i-BMS iyasilela, ezinye iiseli zinokutshaja kakhulu ngelixa ezinye zihlala zitshaja kancinci. Kwiinkqubo ezineentambo ezininzi zeebhetri, oku kungalingani akunciphisi nje kuphela ukusebenza kakuhle kodwa kukwabeka nobungozi bokhuseleko. Iiseli ezitshaja kakhulu ngakumbi zisengozini yokugqithisa kakhulu, nto leyo enokubangela ukuba zingasebenzi kakuhle kakhulu.
4. Ukulahleka kokubeka esweni kunye nokuGcina idatha
Kwiinkqubo zebhetri ezintsonkothileyo, ezifana nezo zisetyenziswa kwizithuthi zokugcina amandla okanye zombane, i-BMS isoloko ijonga ukusebenza kwebhetri, ibhala idatha kwimijikelo yokutshaja, i-voltage, ubushushu, kunye nempilo yeseli nganye. Olu lwazi lubalulekile ekuqondeni impilo yeepakethe zebhetri. Xa i-BMS ingaphumeleli, olu hlolo lubalulekileyo luyayeka, okwenza kube nzima ukulandelela ukuba iiseli ezikwipakethe zisebenza kakuhle kangakanani. Kwiinkqubo zebhetri ze-voltage ephezulu ezineeseli ezininzi, ukungakwazi ukujonga impilo yeseli kunokukhokelela kwiimpazamo ezingalindelekanga, njengokulahleka kwamandla ngequbuliso okanye iziganeko zobushushu.
5. Ukusilela koMbane okanye ukusebenza kakuhle okunciphileyo
Ukungasebenzi kakuhle kwe-BMS kunokubangela ukungasebenzi kakuhle okanye ukungasebenzi kakuhle kombane ngokupheleleyo.I-Voltage, ubushushu, kunye nokulinganisela iiseli, inkqubo inokuvala ukuthintela umonakalo ongakumbi. Kwizicelo aphoiintambo zebhetri ezine-voltage ephezuluezibandakanyekayo, njengezithuthi zombane okanye ukugcinwa kwamandla kwimizi-mveliso, oku kungakhokelela ekulahlekelweni ngamandla ngequbuliso, nto leyo ebangela iingozi ezinkulu zokhuseleko. Umzekelo,i-lithium ye-ternaryIbhetri ingacima ngequbuliso ngelixa imoto yombane iqhuba, nto leyo ebangela iimeko zokuqhuba eziyingozi.
Ixesha lokuthumela: Septemba-11-2024
