Iindlela zokubala zeSOC

Yintoni iSOC?

Imeko yokuTshaja kwebhetri (SOC) ngumlinganiselo wentlawulo yangoku ekhoyo kumthamo webhetri iyonke, edla ngokuchazwa njengepesenti. Ukubala ngokuchanekileyo i-SOC kubalulekile kuInkqubo yoLawulo lwebhetri (BMS)njengoko inceda ukumisela amandla aseleyo, ukulawula ukusetyenziswa kwebhetri, kunyeukulawula iinkqubo zokutshaja kunye nokukhupha, ngaloo ndlela yandisa ubomi bebhetri.

Iindlela ezimbini eziphambili ezisetyenziselwa ukubala i-SOC yindlela yokudibanisa yangoku kunye nendlela yombane ovulekileyo. Zombini zineengenelo kunye nezingeloncedo zazo, kwaye nganye ineempazamo ezithile. Ngoko ke, kwizicelo ezisebenzayo, ezi ndlela zihlala zidibaniswa ukuphucula ukuchaneka.

 

1. Indlela yangoku yokuHlanganisa

Indlela yokudibanisa yangoku ibala i-SOC ngokudibanisa intlawulo kunye nokukhupha imisinga. Ingenelo yayo ikukuba lula kwayo, ayifuni kulungelelaniswa. La manyathelo alandelayo:

1. Rekhoda i-SOC ekuqaleni kokutshaja okanye ukukhupha.
2. Ukulinganisa umsinga ngexesha lokutshaja kunye nokukhupha.
3. Hlanganisa yangoku ukuze ufumane utshintsho kwintlawulo.
4. Bala i-SOC yangoku usebenzisa i-SOC yokuqala kunye notshintsho lwentlawulo.

Ifomula yile:

SOC=i-SOC+Q∫(I⋅dt) yokuqala

aphoNdim yangoku, i-Q sisixa sebhetri, kwaye i-dt lithuba lexesha.

Kubalulekile ukuqaphela ukuba ngenxa yokuchasana kwangaphakathi kunye nezinye izinto, indlela yokudibanisa yangoku inezinga lempazamo. Ngaphezu koko, kufuna ixesha elide lokutshaja kunye nokukhutshwa ukuze kuphunyezwe iziphumo ezichanekileyo.

 

2. Indlela yeVoltge yeSekethe evulekileyo

Indlela ye-open-circuit voltage (OCV) ibala i-SOC ngokulinganisa umbane webhetri xa kungekho mthwalo. Ubulula bayo yeyona nto iluncedo njengoko ayifuni umlinganiselo wangoku. Amanyathelo ngala:

1. Seka ubudlelwane phakathi kwe-SOC kunye ne-OCV ngokusekelwe kwimodeli yebhetri kunye nedatha yomenzi.
2. Ukulinganisa i-OCV yebhetri.
3. Bala i-SOC usebenzisa ubudlelwane be-SOC-OCV.

Qaphela ukuba ijiko ye-SOC-OCV iyatshintsha ngokusetyenziswa kwebhetri kunye nobude bokuphila kwayo, ifuna uhlengahlengiso lwamaxesha ukuze kugcinwe ukuchaneka. Ukuchasana kwangaphakathi kuchaphazela le ndlela, kwaye iimpazamo zibaluleke kakhulu kwiindawo zokukhupha eziphezulu.

 

3. Ukudibanisa iindlela zokudityaniswa kwangoku kunye ne-OCV

Ukuphucula ukuchaneka, ukuhlanganiswa kwangoku kunye neendlela ze-OCV zihlala zidibaniswa. Amanyathelo ale ndlela yokusebenza ngala:

1. Sebenzisa indlela yokudibanisa yangoku ukulandelela ukutshaja kunye nokukhupha, ukufumana i-SOC1.
2. Ukulinganisa i-OCV kwaye usebenzise ubudlelwane be-SOC-OCV ukubala i-SOC2.
3. Dibanisa i-SOC1 kunye ne-SOC2 ukuze ufumane i-SOC yokugqibela.

Ifomula yile:

SOC=k1⋅SOC1+k2⋅SOC2

aphoI-k1 kunye ne-k2 zi-coefficients zobunzima ezishwankathela ukuya ku-1. Ukhetho lwee-coefficients luxhomekeke kusetyenziso lwebhetri, ixesha lovavanyo, kunye nokuchaneka. Ngokwesiqhelo, i-k1 inkulu kuvavanyo olude lwentlawulo/yokukhupha, kwaye i-k2 inkulu kwimilinganiselo ye-OCV echanekileyo.

Ukulinganisa kunye nokulungiswa kuyadingeka ukuze kuqinisekiswe ukuchaneka xa kudibanisa iindlela, njengoko ukuchasana kwangaphakathi kunye nobushushu buchaphazela iziphumo.

 

Ukuqukumbela

Indlela yokudibanisa yangoku kunye nendlela ye-OCV zezona ndlela ziphambili zokubala ze-SOC, nganye ineenzuzo kunye neengxaki zayo. Ukudibanisa zombini iindlela kunokunyusa ukuchaneka kunye nokuthembeka. Nangona kunjalo, ulungelelwaniso kunye nokulungiswa kubalulekile kumiselo oluchanekileyo lwe-SOC.