Izindlela zokubala zeSoSo

Kuyini i-SOC?

Isimo sebhethri sokukhokhisa (SOC) isilinganiso semali ekhokhwayo yamanje etholakala kwinani eliphelele lokukhokhisa, elivame ukuvezwa njengephesenti. Ukubala ngokunembile i-soc kubalulekile kuUhlelo Lokuphathwa Kwebhethri (BMS)Njengoba kusiza ukuthola amandla asele, ukuphatha ukusetshenziswa kwebhethri, futhiukulawula ukushaja kanye nezinqubo zokukhipha amandla, ngaleyo ndlela ukunweba isikhathi sokuphila kwebhethri.

Izindlela ezimbili eziphambili ezisetshenziselwa ukubala i-SOC ziyindlela yokuhlanganisa yamanje kanye nendlela evulekile ye-Voltage Voltage. Bobabili banezinzuzo zabo nobunzima babo, futhi ngamunye wethule amaphutha athile. Ngakho-ke, kuzinhlelo zokusebenza ezisebenzayo, lezi zindlela zivame ukuhlanganiswa nokwenza ngcono ukunemba.

 

1. Indlela yokuhlanganisa yamanje

Indlela yokuhlanganisa yamanje ibala i-SOC ngokuhlanganisa amacala okukhokhiswayo nokwenza imizila. Inzuzo yayo ilele ngokulula kwayo, ayidingi ukulinganiswa. Izinyathelo zinjengokulandelayo:

1. Qopha i-SOC ekuqaleni kokushaja noma ukukhishwa.
2. Ukukala okwamanje ngesikhathi sokushaja nokukhipha.
3. Hlanganisa okwamanje ukuthola ushintsho oluphethe.
4. Bala i-SOC yamanje usebenzisa i-SOC yokuqala kanye noshintsho lwamacala.

Ifomula yile:

I-SOC = I-SOC + Q∫ (I⋅DT)

-phiMina okwamanje, q yithawula lebhethri, futhi i-DT isikhathi sokuphumula.

Kubalulekile ukuqaphela ukuthi ngenxa yokumelana kwangaphakathi nezinye izinto, indlela yokuhlanganisa yamanje inephutha lephutha. Ngaphezu kwalokho, kudinga izinkathi ezinde zokushaja kanye nokukhipha ukuze kufezeke imiphumela efanelekile.

 

2. Indlela yokuvula i-Voltage Voltage

Indlela ye-Open-Circuit Voltage (OCV) ibala i-SOC ngokulinganisa ama-voltage ebhethri lapho kungekho umthwalo. Ukulula kwayo inzuzo yayo eyinhloko njengoba ayidingi ukukalwa kwamanje. Izinyathelo yilezi:

1. Sungula ubudlelwano phakathi kwe-SOC ne-OCV ngokususelwa kumodeli yebhethri nemininingwane yomenzi.
2. Kala i-OCV yebhethri.
3. Bala i-SOC usebenzisa ubuhlobo be-SOCC-OCV.

Qaphela ukuthi i-SoC-OCV ijika izinguquko ngokusetshenziswa kwebhethri nokuphila, okudinga ukulinganiswa ngezikhathi ukuze kugcinwe ukunemba. Ukumelana kwangaphakathi kuthinta le ndlela futhi amaphutha abaluleke kakhulu ezindaweni ezikhukhunyiwe eziphezulu.

 

3. Ukuhlanganisa izindlela zokuhlanganiswa zamanje nezindlela ze-OCV

Ukuze uthuthukise ukunemba, izindlela ezihlanganisiwe zamanje nezindlela ze-OCV zivame ukuhlanganiswa. Izinyathelo zale ndlela yilezi:

1. Sebenzisa indlela yokuhlanganisa yamanje ukulandelela ukushaja kanye nokukhipha, ukuthola i-SOC1.
2. Kala i-OCV bese usebenzisa ubudlelwano be-SOCC-OCV ukubala i-SOC2.
3. Hlanganisa i-SOC1 ne-SOC2 ukuthola i-Final Soc.

Ifomula yile:

I-SOC = K1⋅soc1 + K2⋅soc2

-phiI-K1 ne-K2 ziyi-coefficients yesisindo engqungqutheleni engu-1. Ukukhethwa kwama-coefficients kuncike ekusetshenzisweni kwebhethri, isikhathi sokuhlola, kanye nokunemba. Imvamisa, i-K1 inkulu kakhulu ngokuhlolwa okude / kokukhipha, futhi i-K2 inkulu kakhulu ngezilinganiso eziqondile ze-OCV.

Ukulinganisa nokulungiswa kuyadingeka ukuze kuqinisekiswe ukunemba lapho kuhlanganisa izindlela, njengoba ukumelana kwangaphakathi kanye nokushisa kunemiphumela emihle.

 

Ukugcina

Indlela yokuhlanganisa yokuhlanganisa nendlela ye-OCV yindlela eyinhloko yokubalwa kwe-SO SO SO SOS, yilowo nalowo anezinzuzo zawo kanye nezosibo. Ukuhlanganisa zombili izindlela kungathuthukisa ukunemba nokuthembeka. Kodwa-ke, ukulinganisa nokulungiswa kubalulekile ukuze unqume ngokuqondile-soco.