Njira Zowerengera za SOC

Kodi SOC ndi chiyani?

Mkhalidwe wa batri wa Charge (SOC) ndi chiŵerengero cha mphamvu yamagetsi yomwe ilipo pa mphamvu yonse ya chaji, yomwe nthawi zambiri imafotokozedwa ngati peresenti. Kuwerengera molondola SOC ndikofunikira kwambiri muDongosolo Loyang'anira Mabatire (BMS)chifukwa zimathandiza kudziwa mphamvu yotsala, kuyang'anira momwe batri imagwiritsidwira ntchito, komansowongolerani njira zolipirira ndi kutulutsa, motero kukulitsa moyo wa batri.

Njira ziwiri zazikulu zomwe zimagwiritsidwa ntchito powerengera SOC ndi njira yolumikizirana yomwe ilipo komanso njira yamagetsi yotseguka. Zonse ziwiri zili ndi zabwino ndi zoyipa zake, ndipo chilichonse chimayambitsa zolakwika zina. Chifukwa chake, muzogwiritsidwa ntchito, njirazi nthawi zambiri zimagwirizanitsidwa kuti ziwongolere kulondola.

 

1. Njira Yogwirizanitsa Yamakono

Njira yolumikizira yomwe ikugwiritsidwa ntchito pano imawerengera SOC pophatikiza mphamvu ndi mafunde otulutsa mphamvu. Ubwino wake uli mu kuphweka kwake, osafunikira kuyesedwa. Masitepe ndi awa:

1. Lembani SOC kumayambiriro kwa kuchaji kapena kutulutsa.
2. Yesani mphamvu yamagetsi panthawi yochaja ndi kutulutsa mphamvu.
3. Phatikizani magetsi kuti mupeze kusintha kwa mphamvu.
4. Werengerani SOC yamakono pogwiritsa ntchito SOC yoyambirira ndi kusintha kwa ndalama.

Fomula yake ndi iyi:

SOC=yoyamba SOC+Q∫(I⋅dt)​

kutiI ndiye mphamvu yamagetsi, Q ndiye mphamvu ya batri, ndipo dt ndiye nthawi yogawa mphamvu.

Ndikofunikira kudziwa kuti chifukwa cha kukana kwamkati ndi zinthu zina, njira yolumikizira yomwe ilipo pano ili ndi cholakwika. Kuphatikiza apo, imafuna nthawi yayitali yolipiritsa ndi kutulutsa kuti ipeze zotsatira zolondola.

 

2. Njira Yotsegulira Voltage

Njira yamagetsi otseguka (OCV) imawerengera SOC poyesa magetsi a batri pamene palibe katundu. Kusavuta kwake ndiye phindu lake lalikulu chifukwa sikufuna kuyeza mphamvu yamagetsi. Masitepe ndi awa:

1. Khazikitsani ubale pakati pa SOC ndi OCV kutengera mtundu wa batri ndi deta ya wopanga.
2. Yesani OCV ya batri.
3. Werengerani SOC pogwiritsa ntchito ubale wa SOC-OCV.

Dziwani kuti kakhoma ka SOC-OCV kamasintha malinga ndi momwe batire imagwiritsidwira ntchito komanso nthawi yomwe ikukhala, zomwe zimafuna kuyesedwa nthawi ndi nthawi kuti zisunge kulondola. Kukana kwamkati kumakhudzanso njira iyi, ndipo zolakwika zimakhala zazikulu kwambiri pakakhala kutulutsa kwakukulu.

 

3. Kuphatikiza Njira Zogwirizanitsa Zomwe Zilipo Panopa ndi Njira Zothandizira OCV

Kuti zinthu ziyende bwino, njira zolumikizirana zomwe zilipo panopa ndi njira za OCV nthawi zambiri zimagwirizanitsidwa. Njira zogwiritsira ntchito njira imeneyi ndi izi:

1. Gwiritsani ntchito njira yolumikizira yomwe ilipo pano kuti mutsatire kuyitanitsa ndi kutulutsa, ndikupeza SOC1.
2. Yesani OCV ndikugwiritsa ntchito ubale wa SOC-OCV kuti muwerengere SOC2.
3. Phatikizani SOC1 ndi SOC2 kuti mupeze SOC yomaliza.

Fomula yake ndi iyi:

SOC=k1⋅SOC1+k2⋅SOC2

kutik1 ndi k2 ndi ma coefficient olemera omwe akuphatikizapo 1. Kusankha ma coefficient kumadalira momwe batire imagwiritsidwira ntchito, nthawi yoyesera, ndi kulondola. Kawirikawiri, k1 imakhala yayikulu pamayeso atali a chaji/kutulutsa mphamvu, ndipo k2 imakhala yayikulu pamayeso olondola a OCV.

Kulinganiza ndi kukonza ndikofunikira kuti zitsimikizire kulondola pophatikiza njira, chifukwa kukana kwamkati ndi kutentha zimakhudzanso zotsatira.

 

Mapeto

Njira yolumikizira yomwe ilipo panopa ndi njira ya OCV ndi njira zazikulu zowerengera SOC, iliyonse ili ndi zabwino ndi zoyipa zake. Kuphatikiza njira zonse ziwiri kungathandize kulondola ndi kudalirika. Komabe, kulinganiza ndi kukonza ndikofunikira kuti SOC idziwike bwino.