Nzira dzekuverenga dzeSOC

Chii chinonzi SOC?

Mamiriro Echaja (SOC) ebhatiri ndiwo chiyero chechaja iripo pari zvino kusvika pakukwanisa kuchaja kwese, chinowanzo tsanangurwa sechikamu. Kuverenga SOC nemazvo kwakakosha muSisitimu Yekutarisira Mabhatiri (BMS)sezvo zvichibatsira kuona simba rasara, kutonga mashandisirwo ebhatiri, uyekudzora maitiro ekuchaja uye ekubvisa, nokudaro zvichiwedzera hupenyu hwebhatiri.

Nzira mbiri huru dzinoshandiswa kuverenga SOC inzira yekubatanidza iripo uye nzira yemagetsi anovhurika. Dzese dzine zvadzinobatsira nezvadzisina, uye imwe neimwe inounza zvikanganiso. Saka, mukushandiswa kwazvino, nzira idzi dzinowanzo batanidzwa kuti dzivandudze kururama.

 

1. Nzira yekubatanidza iripo

Nzira yekubatanidza iripo inoverenga SOC nekubatanidza magetsi ekuchaja uye ekuburitsa magetsi. Kubatsira kwayo kuri mukureruka kwayo, kwete kuda kuyera. Matanho acho ndeaya anotevera:

1. Rekodha SOC pakutanga kwekuchaja kana kuburitsa.
2. Yera simba remagetsi panguva yekuchaja nekuburitsa simba.
3. Batanidza magetsi kuti uwane shanduko iri mucharge.
4. Verenga SOC iripo uchishandisa SOC yekutanga uye shanduko yechaji.

Fomura yacho ndeiyi:

SOC=SOC yekutanga+Q∫(I⋅dt)​

kupiI ndiyo current, Q ndiyo bhatiri rinokwanisa kuburitsa magetsi, uye dt ndiyo nguva inobuda.

Zvakakosha kuziva kuti nekuda kwekusagadzikana kwemukati nezvimwe zvinhu, nzira yekubatanidza iripo ine chikanganiso chakakura. Uyezve, inoda nguva yakareba yekuchaja nekuburitsa charging kuti uwane mhedzisiro chaiyo.

 

2. Nzira yeVoteji Yakavhurika

Nzira ye open-circuit voltage (OCV) inoverenga SOC nekuyera voltage yebhatiri kana pasina mutoro. Kureruka kwayo ndiyo mukana wayo mukuru sezvo isingade kuyerwa kwemagetsi. Matanho ndeaya:

1. Gadzira hukama huripo pakati peSOC neOCV zvichibva pamhando yebhatiri neruzivo rwemugadziri.
2. Yera OCV yebhatiri.
3. Verenga SOC uchishandisa hukama hweSOC-OCV.

Ziva kuti curve yeSOC-OCV inochinja nekushandiswa kwebhatiri uye hupenyu hwaro, zvichida kutariswa nguva nenguva kuti rirambe rakanyatsojeka. Kuramba kwemukati kunokanganisawo nzira iyi, uye zvikanganiso zvinonyanya kukosha kana bhatiri rava kuburitsa mvura yakawanda.

 

3. Kusanganisa Kubatanidzwa Kwazvino uye Nzira dzeOCV

Kuti pave nekunyatsorongeka, nzira dziri kushandiswa pari zvino dzekubatanidza nzira dzeOCV dzinowanzo batanidzwa. Matanho ekuita izvi ndeaya:

1. Shandisa nzira yekubatanidza iripo kuti utevere kuchaja nekuburitsa, uchiwana SOC1.
2. Yera OCV uye shandisa hukama hweSOC-OCV kuverenga SOC2.
3. Sanganisa SOC1 neSOC2 kuti uwane SOC yekupedzisira.

Fomura yacho ndeiyi:

SOC=k1⋅SOC1+k2⋅SOC2

kupik1 na k2 zviyero zvehuremu zvinosvika 1. Kusarudzwa kwezviyero zvinoenderana nekushandiswa kwebhatiri, nguva yekuedza, uye kururama. Kazhinji, k1 yakakura pakuyedzwa kwenguva refu kwekuchaja/kuburitsa, uye k2 yakakura pakuyerwa kweOCV kwakanyatsojeka.

Kugadzirisa nekugadzirisa zvinodiwa kuti pave nechokwadi chekuti nzira dzacho dzakarurama pakubatanidza nzira, sezvo kudzivirira kwemukati nekupisa zvichikanganisawo mhedzisiro.

 

Mhedziso

Nzira yekubatanidza iripo uye nzira yeOCV ndiyo nzira huru dzekuverenga SOC, imwe neimwe ine zvayakanakira nezvayakaipira. Kubatanidza nzira dzese dziri mbiri kunogona kuwedzera kururama uye kuvimbika. Zvisinei, kuyera nekugadzirisa kwakakosha pakuona SOC nemazvo.