Inkqubo yoLawulo lweBattery (BMS) idlala indima ebalulekileyo ekuqinisekiseni ukusebenza okukhuselekileyo nokusebenzayo kweebhetri ze-lithium-ion, kuquka i-LFP kunye neebhetri ze-ternary lithium (NCM / NCA). Injongo yayo ephambili kukubeka iliso kunye nokulawula iiparitha ezahlukeneyo zebhetri, ezifana ne-voltage, ubushushu, kunye nekhoyo ngoku, ukuqinisekisa ukuba ibhetri isebenza ngaphakathi kwemida ekhuselekileyo. I-BMS ikwakhusela ibhetri ekutshajweni, ekukhutshweni kakhulu, okanye ekusebenzeni ngaphandle kweqondo lobushushu elilelona liphezulu. Kwiipakethe zebhetri ezinochungechunge oluninzi lweeseli (iintambo zebhetri), i-BMS ilawula ukulinganisa kweeseli zomntu ngamnye. Xa i-BMS ingaphumeleli, ibhetri ishiywe isengozini, kwaye imiphumo ingaba nzima.
1. Ukutshaja kakhulu okanye ukukhupha ngokugqithisileyo
Omnye weyona misebenzi ibalulekileyo ye-BMS kukuthintela ibhetri ekubeni itshajiswe kakhulu okanye ikhutshwe kakhulu. Ukutshaja kakhulu kuyingozi kakhulu kwiibhetri ezinoxinano lwamandla aphezulu njenge-ternary lithium (NCM/NCA) ngenxa yokuba buthathaka kwazo kwi-thermal runaway. Oku kwenzeka xa amandla ombane ebhetri engaphaya kwemida ekhuselekileyo, evelisa ubushushu obugqithisileyo, obunokukhokelela kugqabhuko-dubulo okanye umlilo. Ukukhupha ngokugqithiseleyo, ngakolunye uhlangothi, kunokubangela umonakalo osisigxina kwiiseli, ngakumbi kwiibhetri ze-LFP, ezinokulahlekelwa ngumthamo kwaye zibonise ukusebenza kakubi emva kokukhutshwa okunzulu. Kuzo zombini iindidi, ukusilela kwe-BMS ukulawula amandla ombane ngexesha lokutshaja nokukhupha kunokubangela umonakalo ongenakulungiseka kwipakethi yebhetri.
2. Ukufudumeza okugqithisileyo kunye ne-Thermal Runaway
Iibhetri ze-Ternary lithium (NCM/NCA) zinovelwano ngakumbi kumaqondo obushushu aphezulu, ngakumbi kuneebhetri zeLFP, ezaziwa ngokuzinza okungcono kwe-thermal. Nangona kunjalo, zombini iintlobo zifuna ukulawulwa ngononophelo lobushushu. I-BMS esebenzayo ijonga ubushushu bebhetri, iqinisekisa ukuba ihlala kwindawo ekhuselekileyo. Ukuba i-BMS iyasilela, ubushushu obugqithisileyo bunokwenzeka, nto leyo ebangela ukusabela kwekhonkco eliyingozi elibizwa ngokuba yi-thermal runaway. Kwipakethi yebhetri eyenziwe ngothotho lweeseli (iintambo zebhetri), ukubaleka kwe-thermal kunokusasaza ngokukhawuleza ukusuka kwesinye iseli ukuya kwesinye, okukhokelela kukusilela okuyintlekele. Ukusetyenziswa kwamandla ombane aphezulu njengezithuthi zombane, lo mngcipheko uyandiswa ngenxa yokuba ubuninzi bamandla kunye nokubalwa kweeseli kuphezulu kakhulu, kwandisa amathuba okuba neziphumo ezibi.
3. Ukungalingani phakathi kweeseli zebhetri
Kwiipakethe zeebhetri zeeseli ezininzi, ngakumbi ezo zinolungelelwaniso lwamandla ombane aphezulu njengezithuthi zombane, ukulinganisa amandla ombane phakathi kweeseli kubalulekile. I-BMS inoxanduva lokuqinisekisa ukuba zonke iiseli ezikwipakethi zilungelelene. Ukuba i-BMS iyasilela, ezinye iiseli zinokutsalwa kakhulu ngelixa ezinye zihlala zingahlawuliswanga. Kwiinkqubo ezineentambo ezininzi zebhetri, oku kungalingani akunciphisi nje ukusebenza ngokupheleleyo kodwa kubangela ingozi yokhuseleko. Iiseli ezihlawuliswa ngokugqithisileyo ngakumbi zisemngciphekweni wokushisa ngokugqithiseleyo, nto leyo enokubangela ukuba zisilele ngokuyintlekele.
4. Ilahleko yokuBeka iliso kunye nokuLogwa kweDatha
Kwiinkqubo zebhetri eziyinkimbinkimbi, ezifana nezo zisetyenziselwa ukugcinwa kwamandla okanye izithuthi zombane, i-BMS ibeka iliso ngokuqhubekayo ukusebenza kwebhetri, idatha yokungena kwimijikelo yentlawulo, i-voltage, ubushushu kunye nempilo yeseli nganye. Olu lwazi lubalulekile ekuqondeni impilo yeepakethi zebhetri. Xa i-BMS isilela, oku kubeka iliso okubalulekileyo kuyeka, okwenza kube nzima ukulandelela ukuba iiseli ezikwipakethi zisebenza kakuhle kangakanani. Kwiinkqubo zebhetri yombane ophezulu kunye nothotho lweeseli ezininzi, ukungakwazi ukubeka iliso kwimpilo yeeseli kunokukhokelela ekusileleni okungalindelekanga, okufana nokulahleka kwamandla ngequbuliso okanye iziganeko zobushushu.
5. Ukungaphumeleli kwamandla okanye ukuNcitshiswa kokuSebenza
I-BMS engaphumeleliyo inokukhokelela ekucuthekeni kokusebenza kakuhle okanye ukusilela kwamandla ngokupheleleyo. Ngaphandle kolawulo olululo lweI-Voltage, iqondo lobushushu, kunye nokulinganisa iseli, inkqubo inokuvala ukuthintela umonakalo ongakumbi. Kwizicelo aphoiintambo zebhetri eziphezuluababandakanyekayo, njengezithuthi zombane okanye ukugcinwa kwamandla kwimizi-mveliso, oku kunokukhokelela ekulahlekelweni kwamandla ngequbuliso, kubangele imingcipheko ebalulekileyo yokhuseleko. Umzekelo, aternary lithiumibhetri inokuvalwa ngokungalindelekanga ngelixa isithuthi sombane sihamba, oko kudala iimeko zokuqhuba ezinobungozi.
Ixesha lokuposa: Sep-11-2024
