Ni ọdun 2025, diẹ sii ju 68% ti awọn iṣẹlẹ batiri ẹlẹsẹ ẹlẹsẹ meji eletiriki tọpa si Awọn Eto Iṣakoso Batiri ti o gbogun (BMS), ni ibamu si data Igbimọ Electrotechnical International. Circuit to ṣe pataki yii ṣe abojuto awọn sẹẹli litiumu ni igba 200 fun iṣẹju kan, ṣiṣe awọn iṣẹ ṣiṣe itọju igbesi aye mẹta:
1. Sentinel Foliteji
• Ibaṣepọ gbigba agbara: Gige agbara ni> 4.25V/cell (fun apẹẹrẹ, 54.6V fun awọn akopọ 48V) idilọwọ jijẹ electrolyte
• Igbala Alailagbara: Fi ipa mu ipo oorun ni <2.8V/cell (fun apẹẹrẹ, <33.6V fun awọn eto 48V) n yago fun ibajẹ ti ko le yipada
2. Iṣakoso lọwọlọwọ Yiyi
| Oju iṣẹlẹ Ewu | Aago Idahun BMS | Abajade Idilọwọ |
|---|---|---|
| Hill-gígun apọju | Iwọn lọwọlọwọ si 15A ni 50ms | Ijinle oludari |
| Kukuru-Circuit iṣẹlẹ | Bireki Circuit ni 0.02s | Cell gbona sa lọ |
3. Abojuto Gbona ti oye
- 65°C: Agbara idinku idilọwọ awọn elekitiroti farabale
- <-20°C: Ṣaju awọn sẹẹli ṣaaju gbigba agbara lati yago fun dida litiumu
Ilana Ṣiṣayẹwo Mẹta
① MOSFET kika: ≥6 ni afiwe MOSFETs mu 30A+ idasilẹ
② Iwọntunwọnsi Lọwọlọwọ:> 80mA dinku iyatọ agbara sẹẹli
③ BMS duro fun titẹ omi
Awọn yago fun pataki
① Maṣe gba agbara si awọn igbimọ BMS ti o han (ewu ina pọ si 400%)
② Yago fun gbigbe awọn opin lọwọlọwọ (“Mod wire wire” ofo gbogbo aabo)
"Iyatọ foliteji ti o kọja 0.2V laarin awọn sẹẹli tọkasi ikuna BMS ti o sunmọ,” kilo Dokita Emma Richardson, oluwadi aabo EV ni UL Solutions. Awọn sọwedowo foliteji oṣooṣu pẹlu awọn multimeters le fa igbesi aye idii pọ si nipasẹ 3x.
Akoko ifiweranṣẹ: Oṣu Kẹjọ-16-2025
