Iipakethi zebhetri yeLithium zifana neenjini eziswele ukulungiswa; aBMSngaphandle komsebenzi wokulinganisa kuphela umqokeleli wedatha kwaye ayikwazi kuthathwa njengenkqubo yolawulo. Zombini ulungelelwaniso olusebenzayo kunye nolwenziwayo lujolise ekupheliseni ukungangqinelani ngaphakathi kwipakethi yebhetri, kodwa imigaqo-siseko yabo yokuphumeza yahluke kakhulu.
Ukucaca, eli nqaku lichaza ukulinganisa okuqalwe yi-BMS ngokusebenzisa i-algorithms njengokulinganisa okusebenzayo, ngelixa ukulinganisa okusebenzisa izixhasi ukutshabalalisa amandla kubizwa ngokuba yi-passive balancing. Ulungelelwaniso olusebenzayo lubandakanya ugqithiso lwamandla, ngelixa ulungelelwaniso lokwenziwa lubandakanya ukuchithwa kwamandla.
Imigaqo yoYilo lweBattery eSisiseko
- Ukutshaja kufuneka kuyekwe xa iseli yokuqala igcwaliswe ngokupheleleyo.
- Ukukhupha kufuneka kuphele xa iseli yokuqala iphelile.
- Iiseli ezibuthathaka ziguga ngokukhawuleza kuneeseli ezomeleleyo.
- Iseli eneyona ntlawulo ibuthathaka iya kuthi ekugqibeleni inciphise ipakethi yebhetri's umthamo osebenzisekayo (elona khonkco libuthathaka).
- Iqondo lobushushu lenkqubo ngaphakathi kwipakethi yebhetri yenza iiseli ezisebenza kumaqondo obushushu aphezulu zibe buthathaka.
- Ngaphandle kokulinganisa, umahluko wevolthi phakathi kweeseli ezibuthathaka kunye nezona zinamandla zinyuka ngentlawulo nganye kunye nomjikelo wokukhupha. Ekugqibeleni, iseli enye iya kufikelela kwi-voltage ephezulu ngelixa enye isondela kwi-voltage encinci, ithintela ukuhlawuliswa kwepakethi kunye nokukhupha amandla.
Ngenxa yokungahambelani kweeseli ngokuhamba kwexesha kunye neemeko zobushushu ezahlukeneyo ukusuka kufakelo, ukulingana kweeseli kubalulekile.
Iibhetri zeLithium-ion zijongana ikakhulu neentlobo ezimbini zokungahambelani: ukutshaja ngokungafaniyo kunye nokungafani komthamo. Ukutshaja ukungahambelani kwenzeka xa iiseli ezinomthamo ofanayo zohluka ngokuthe ngcembe ekulawuleni. Ukungafani komthamo kwenzeka xa iiseli ezinomthamo wokuqala ohlukeneyo zisetyenziswa kunye. Nangona iiseli ngokubanzi zihambelana kakuhle ukuba ziveliswa ngexesha elinye kunye neenkqubo ezifanayo zokwenziwa, ukungalingani kunokuvela kwiiseli ezinemithombo engaziwayo okanye umahluko omkhulu wokuvelisa.
Ulungelelwaniso oluSebenzayo vs
1. Injongo
Iipakethi zebhetri zineeseli ezininzi eziqhagamshelwe ngothotho, ezingafane zifane. Ukulinganisa kuqinisekisa ukuba ukutenxa kumbane weeseli kugcinwa phakathi koluhlu olulindelekileyo, kugcinwa ukusebenziseka kunye nokulawulwa ngokubanzi, ngaloo ndlela kuthintelwa umonakalo kunye nokwandisa ubomi bebhetri.
2. Uthelekiso loYilo
- I-Passive Balancing: Ngokuqhelekileyo ikhupha iiseli ze-voltage ephezulu isebenzisa izixhasi, iguqula amandla angaphezulu kubushushu. Le ndlela yandisa ixesha lokutshaja kwezinye iiseli kodwa inokusebenza okuphantsi.
- Ulungelelwaniso olusebenzayo: Ubuchule obuntsonkothileyo obusasaza ngokutsha intlawulo ngaphakathi kweeseli ngexesha lemijikelo yentlawulo kunye nokukhupha, ukunciphisa ixesha lokutshaja kunye nokwandisa ixesha lokukhupha. Ngokuqhelekileyo isebenzisa izicwangciso ezisezantsi zokulinganisa ngexesha lokukhupha kunye neendlela eziphezulu zokulinganisa ngexesha lokutshaja.
- Uthelekiso lweePros and Consential: I-Passive balancing ilula kwaye inexabiso eliphantsi kodwa ayisebenzi kakuhle, njengoko ichitha amandla njengobushushu kwaye ineziphumo ezicothayo zokulinganisa. Ukulinganisa okusebenzayo kusebenza ngakumbi, ukuhambisa amandla phakathi kweeseli, eziphucula ukusetyenziswa kakuhle kokusetyenziswa kunye nokufezekisa ukulinganisela ngokukhawuleza. Nangona kunjalo, ibandakanya izakhiwo ezinzima kunye neendleko eziphezulu, kunye nemingeni ekuhlanganiseni ezi nkqubo kwii-IC ezizinikeleyo.
Ukuqukumbela
Ingqikelelo ye-BMS yaqala yaphuhliswa phesheya, kunye noyilo lwangaphambili lwe-IC lugxile kumbane kunye nokufunyanwa kobushushu. Ingcamango yokulinganisa yaziswa kamva, ekuqaleni kusetyenziswa iindlela zokukhupha ezixhasiweyo ezidityanisiweyo kwii-ICs. Le ndlela ngoku ixhaphake, kunye neenkampani ezifana ne-TI, MAXIM, kunye ne-LINEAR zivelisa iitshiphusi ezinjalo, ezinye zidibanisa abaqhubi bokutshintsha kwiichips.
Ukususela kwimigaqo yokulinganisa i-passive kunye nemizobo, ukuba ipakethe yebhetri ifaniswa nombhobho, iiseli zifana nezibonda. Iiseli ezinamandla aphezulu ngamaplanga amade, kwaye ezo zinamandla aphantsi ngamaplanga amafutshane. I-Pasisive balancing kuphela "ifinyeza" amaplanga amade, okukhokelela ekulahlekeni kwamandla kunye nokungasebenzi kakuhle. Le ndlela inemida, kubandakanywa ukuchithwa kobushushu okubalulekileyo kunye nemiphumo ecothayo yokulinganisa kwiipakethi ezinkulu zomthamo.
Ukulinganisa okusebenzayo, ngokuchaseneyo, "kuzalisa iiplanga ezimfutshane," ukuhambisa amandla ukusuka kwiiseli zamandla aphezulu ukuya kumandla aphantsi, okukhokelela ekusebenzeni okuphezulu kunye nokufikelela ngokukhawuleza kokulinganisela. Nangona kunjalo, yazisa ubunzima kunye nemiba yeendleko, kunye nemingeni ekuyileni iimatriki zokutshintsha kunye nokulawula iidrives.
Ukunikezelwa kokurhweba, i-passive balancing inokufaneleka kwiiseli ezinokuhambelana kakuhle, ngelixa ukulinganisa okusebenzayo kukhethwa kwiiseli ezinokungafani okukhulu.
Ixesha lokuposa: Aug-27-2024
