M'makina a batri a lithiamu, kulondola kwa kuyerekezera kwa SOC (State of Charge) ndi muyeso wofunikira wa magwiridwe antchito a Battery Management System (BMS). Pazikhalidwe zosiyanasiyana za kutentha, ntchitoyi imakhala yovuta kwambiri. Lero, tikulowa mu lingaliro losawoneka bwino koma lofunikira laukadaulo—zero-drift current, zomwe zimakhudza kwambiri kulondola kwa SOC.
Kodi Zero-Drift Current Ndi Chiyani?
Zero-drift current imatanthawuza chizindikiro chabodza chomwe chimapangidwa mumayendedwe amplifier pomwe palizero zolowetsa panopa, koma chifukwa cha zinthu mongakusintha kwa kutentha kapena kusakhazikika kwa magetsi, malo ogwirira ntchito akusintha kwa amplifier. Kusinthaku kumakulitsidwa ndikupangitsa kuti zotulukazo zichoke pamtengo wake wa ziro womwe udafuna.
Kuti tifotokoze mophweka, lingalirani sikelo ya bafa ya digito ikuwonetsaKulemera 5 kg munthu aliyense asanakwerepo. Kulemera kwa "mzimu" ndikofanana ndi zero-drift current - chizindikiro chomwe kulibe.
Chifukwa Chiyani Ndi Vuto Kwa Mabatire a Lithium?
SOC mu mabatire a lithiamu nthawi zambiri amawerengedwa pogwiritsa ntchitokuwerengera coulomb, zomwe zimagwirizanitsa zamakono pakapita nthawi.
Ngati zero-drift current ndizabwino ndi zolimbikira, mwinamonyenga kwezani SOC, kunyengerera makina kuti aganize kuti batire yachajidwa kwambiri kuposa momwe ilili—mwinamwake kudula kulitcha msanga msanga. Mosiyana,kutengeka koipazingayambitse kuadachepetsa SOC, kuyambitsa chitetezo cham'mimba msanga.
Pakapita nthawi, zolakwika zochulukirazi zimachepetsa kudalirika komanso chitetezo cha batri.
Ngakhale kuti zero-drift current sizingathe kuthetsedwa, itha kuchepetsedwa bwino pogwiritsa ntchito njira zingapo:
- Kukhathamiritsa kwa Hardware: Gwiritsani ntchito op-amps otsika, olondola kwambiri ndi zigawo zake;
- Malipiro a algorithmic: Sinthani mwamphamvu kuti mutengeke pogwiritsa ntchito zidziwitso zenizeni zenizeni monga kutentha, magetsi, ndi zamakono;
- Kuwongolera kutentha: Konzani masanjidwe ndi kutentha kwa kutentha kuti muchepetse kusalinganika kwa kutentha;
- Kuzindikira kolondola kwambiri: Sinthani kulondola kwa kuzindikira kofunikira (voltage yama cell, voteji ya paketi, kutentha, pano) kuti muchepetse zolakwika zoyerekeza.
Pomaliza, kulondola mu microamp iliyonse kumawerengera. Kulimbana ndi zero-drift panopa ndi sitepe yofunika kwambiri pomanga makina oyendetsera batire anzeru komanso odalirika.
Nthawi yotumiza: Jun-20-2025
