Iibhetri zeLithium zifana neenjini ezingalungiswanga kakuhle;I-BMSNgaphandle komsebenzi wokulinganisela, yinto nje eqokelela idatha kwaye ayinakuthathwa njengenkqubo yolawulo. Zombini i-active balancing kunye ne-passive balancing zijolise ekususeni ukungangqinelani ngaphakathi kwebhetri, kodwa imigaqo yazo yokusetyenziswa yahlukile ngokupheleleyo.
Ukuze kucace gca, eli nqaku lichaza ukulinganisela okuqalwe yi-BMS ngokusebenzisa ii-algorithms njengokulinganisela okusebenzayo, ngelixa ukulinganisela okusebenzisa ii-resistor ukukhupha amandla kubizwa ngokuba kukulinganisela okungasebenziyo. Ukulinganisela okusebenzayo kubandakanya ukudluliselwa kwamandla, ngelixa ukulinganisela okungasebenziyo kubandakanya ukusasazwa kwamandla.
Imigaqo esisiseko yoYilo lweBhetri
- Ukutshaja kufuneka kume xa iseli yokuqala itshajiwe ngokupheleleyo.
- Ukukhupha kufuneka kuphele xa iseli yokuqala iphelile.
- Iiseli ezibuthathaka ziyaguga ngokukhawuleza kuneeseli ezinamandla.
- -Iseli enomtshiso obuthathaka ekugqibeleni iya kuyinciphisa ibhetri'amandla asebenzisekayo (ikhonkco elibuthathaka).
- Ubushushu benkqubo ngaphakathi kwebhetri kwenza iiseli ezisebenza kumaqondo obushushu aphezulu zibe buthathaka.
- Ngaphandle kokulinganisela, umahluko wevolthi phakathi kweeseli ezibuthathaka nezinamandla uyanda ngomjikelo ngamnye wokutshaja kunye nokukhupha. Ekugqibeleni, iseli enye iya kusondela kwivolthi ephezulu ngelixa enye isondela kwivolthi encinci, nto leyo ethintela amandla okutshaja kunye nokukhupha kwephakheji.
Ngenxa yokungangqinelani kweeseli ngokuhamba kwexesha kunye neemeko zobushushu ezahlukeneyo ukusuka ekufakweni, ukulinganisela iiseli kubalulekile.
Iibhetri zeLithium-ion ngokuyintloko zijongene neentlobo ezimbini zokungangqinelani: ukungangqinelani kokutshaja kunye nokungangqinelani komthamo. Ukungangqinelani kokutshaja kwenzeka xa iiseli ezinomthamo ofanayo zahluka kancinci kancinci kwi-charge. Ukungangqinelani komthamo kwenzeka xa iiseli ezinemilinganiselo yokuqala eyahlukileyo zisetyenziswa kunye. Nangona iiseli ngokubanzi zihambelana kakuhle ukuba ziveliswa ngexesha elinye ngeenkqubo zokuvelisa ezifanayo, ukungangqinelani kunokuvela kwiiseli ezinemithombo engaziwayo okanye umahluko omkhulu kwimveliso.
Ukulinganisela Okusebenzayo vs. Ukulinganisela Okungasebenziyo
1. Injongo
Iipakethi zebhetri ziqulathe iiseli ezininzi eziqhagamshelwe ngochungechunge, ezingenakwenzeka ukuba zifane. Ukulinganisela kuqinisekisa ukuba ukuphambuka kwamandla ebhetri kugcinwa ngaphakathi koluhlu olulindelekileyo, kugcina ukusetyenziswa kunye nokulawulwa ngokubanzi, ngaloo ndlela kuthintela umonakalo kunye nokwandisa ubomi bebhetri.
2. Uthelekiso loYilo
- Ukulinganisela Okungasebenziyo: Ngokwesiqhelo kukhupha iiseli zevolthi ephezulu kusetyenziswa ii-resistor, ziguqula amandla agqithisileyo abe bubushushu. Le ndlela yandisa ixesha lokutshaja kwezinye iiseli kodwa ayisebenzi kakuhle.
- Ukulinganisela Okusebenzayo: Indlela entsonkothileyo esasaza ngokutsha itshaja ngaphakathi kweeseli ngexesha lemijikelo yokutshaja nokukhupha, inciphisa ixesha lokutshaja kwaye yandise ixesha lokukhupha. Ngokubanzi isebenzisa amaqhinga okulinganisela ezantsi ngexesha lokukhupha kunye namaqhinga okulinganisela ephezulu ngexesha lokutshaja.
- Iingenelo kunye neeNgxaki Ukuthelekisa: Ukulinganisela okungasebenziyo kulula kwaye kubiza kancinci kodwa akusebenzanga kakuhle, njengoko kudlalisa amandla njengobushushu kwaye kunemiphumo ecothayo yokulinganisela. Ukulinganisela okusebenzayo kusebenza kakuhle, kudlulisela amandla phakathi kweeseli, nto leyo ephucula ukusebenza kakuhle kokusetyenziswa kwayo yonke into kwaye ifezekise ulungelelwaniso ngokukhawuleza. Nangona kunjalo, kubandakanya izakhiwo ezintsonkothileyo kunye neendleko eziphezulu, kunye nemingeni yokudibanisa ezi nkqubo kwii-IC ezizinikeleyo.
Isiphelo
Ingcamango ye-BMS yaqala ukuphuhliswa kwamanye amazwe, kunye noyilo lwe-IC lwangaphambili olugxile ekufumaneni i-voltage kunye nobushushu. Ingcamango yokulinganisela yaziswa kamva, ekuqaleni kusetyenziswa iindlela zokukhupha amandla ezidityaniswe kwii-IC. Le ndlela ngoku isasazeke kakhulu, kunye neenkampani ezifana ne-TI, i-MAXIM, kunye ne-LINEAR ezivelisa ezo chips, ezinye zidibanisa abaqhubi beswitch kwii-chips.
Ukusuka kwimigaqo yokulinganisela kunye needayagram, ukuba ibhetri ithelekiswa nebhereli, iiseli zifana neentonga. Iiseli ezinamandla aphezulu ziiplanga ezinde, kwaye ezo zinamandla aphantsi ziiplanga ezimfutshane. Ukulinganisela okungasebenziyo "kunciphisa" iiplanga ezinde, okubangela amandla achithekileyo kunye nokungasebenzi kakuhle. Le ndlela inemida, kubandakanya ukuchithwa kobushushu okubalulekileyo kunye nemiphumo yokulinganisela kancinci kwiipakethi ezinkulu ezinomthamo.
Ukulinganisela okusebenzayo, ngokuchaseneyo, "kuzalisa iiplanga ezimfutshane," ukudlulisela amandla ukusuka kwiiseli ezinamandla aphezulu ukuya kwezo zinamandla aphantsi, okubangela ukusebenza kakuhle okuphezulu kunye nokufikelela ngokukhawuleza kwibhalansi. Nangona kunjalo, izisa ubunzima kunye nemiba yeendleko, kunye nemingeni ekuyileni i-switch matrices kunye nee-control drives.
Ngenxa yeendlela ezahlukeneyo zokulinganisa, ukulinganisela okusebenzayo kunokufaneleka kwiiseli ezinobungqingqwa obuhle, ngelixa ukulinganisela okusebenzayo kungcono kwiiseli ezineenguqu ezinkulu.
Ixesha leposi: Agasti-27-2024
