A cikin tsarin batirin lithium, daidaiton ƙiyasin SOC (Jihar Caji) muhimmin ma'auni ne na tsarin sarrafa baturi (BMS). Ƙarƙashin yanayin yanayin zafi daban-daban, wannan aikin yana ƙara yin ƙalubale. A yau, mun nutse cikin dabarar fasaha mai mahimmanci amma mai mahimmanci -sifili-drift halin yanzu, wanda ke tasiri mahimmancin ƙimar ƙimar SOC.
Menene Zero-Drift Yanzu?
Sifili-drift halin yanzu yana nufin siginar halin yanzu na ƙarya da aka samar a cikin da'irar ƙara lokacin da akwaishigar da sifili na yanzu, amma saboda dalilai kamarcanjin yanayin zafi ko rashin kwanciyar hankali, madaidaicin wurin aiki na amplifier yana canzawa. Wannan motsi yana ƙara ƙaruwa kuma yana haifar da abin da ake fitarwa ya karkata daga ƙimar sifili da aka nufa.
Don bayyana shi a sauƙaƙe, yi tunanin ma'aunin gidan wanka na dijital yana nunawa5 kg na nauyi kafin kowa ma ya taka shi. Wannan nauyin “fatalwa” yayi daidai da sifili-drift halin yanzu—siginar da babu a zahiri.
Me Yasa Yake Matsala Ga Batir Lithium?
SOC a cikin batir lithium galibi ana ƙididdige su ta amfani da sulissafin coulomb, wanda ke haɗa halin yanzu akan lokaci.
Idan sifili-drift halin yanzutabbatacce kuma m, yana iyakarya tada SOC, yaudarar tsarin don tunanin cewa batirin ya fi caji fiye da yadda ake yi - mai yiwuwa ya yanke cajin da wuri. Akasin haka,rashi mara kyauzai iya kaiwa garashin kimanta SOC, haifar da kariyar fitarwa da wuri.
Bayan lokaci, waɗannan kurakuran tarawa suna rage dogaro da amincin tsarin baturi.
Ko da yake ba za a iya kawar da halin yanzu gaba ɗaya ba, ana iya rage shi yadda ya kamata ta hanyar haɗakar hanyoyin:
- Haɓaka Hardware: Yi amfani da ƙananan drift, madaidaicin op-amps da aka gyara;
- Algorithmic diyya: Daidaita ƙarfin hali don drift ta amfani da bayanan lokaci-lokaci kamar zazzabi, ƙarfin lantarki, da halin yanzu;
- Gudanar da thermal: Haɓaka shimfidar wuri da zafi mai zafi don rage rashin daidaituwa na thermal;
- Babban madaidaicin ji: Haɓaka daidaiton gano maɓalli na maɓalli (tsarin lantarki, fakitin ƙarfin lantarki, zazzabi, halin yanzu) don rage kurakuran ƙididdiga.
A ƙarshe, daidaito a cikin kowane microamp yana ƙidaya. Magance sifili-drift halin yanzu babban mataki ne na gina mafi wayo kuma ingantaccen tsarin sarrafa baturi.
Lokacin aikawa: Juni-20-2025
