Igitekerezo cya Lithium yishyuza no gusohora & igishushanyo cyuburyo bwo kubara amashanyarazi
2. Kumenyekanisha metero ya batiri
2.1 Imikorere yo gutangiza metero y'amashanyarazi
Imicungire ya bateri irashobora gufatwa nkigice cyo gucunga ingufu.Mugucunga bateri, metero yamashanyarazi ishinzwe kugereranya ubushobozi bwa bateri.Igikorwa cyibanze cyayo ni ugukurikirana voltage, kwishyuza / gusohora ubushyuhe nubushyuhe bwa batiri, no kugereranya uko amafaranga yishyurwa (SOC) nubushobozi bwuzuye (FCC) bwa bateri.Hariho uburyo bubiri busanzwe bwo kugereranya imiterere yumuriro wa bateri: uburyo bwo gufungura amashanyarazi ya voltage (OCV) nuburyo bwa coulometric.Ubundi buryo ni dinamike ya voltage algorithm yateguwe na RICHTEK.
2.2 Fungura uburyo bwa voltage yumurongo
Biroroshye kumenya metero yamashanyarazi ukoresheje uburyo bwa voltage yumurongo wa voltage, ushobora kuboneka mugenzura imiterere ihwanye yumuriro wa voltage ifunguye.Umuvuduko wumuzunguruko ufunguye ufatwa nkumubyigano wa bateri ya bateri mugihe bateri iruhutse iminota irenga 30.
Amashanyarazi ya batiri azahinduka hamwe nuburemere butandukanye, ubushyuhe hamwe no gusaza kwa batiri.Kubwibyo, gufungura voltmeter ihagaze neza ntishobora kwerekana byimazeyo leta yishyurwa;Leta ishinzwe ntishobora kugereranywa no kureba ameza wenyine.Muyandi magambo, niba leta yishyuwe igereranijwe gusa nukureba hejuru, ikosa rizaba rinini.
Igishushanyo gikurikira kirerekana ko leta yishyurwa (SOC) yumubyigano wa bateri imwe itandukanye cyane nuburyo bwo gufungura amashanyarazi ya voltage munsi yo kwishyuza no gusohora.
Igicapo 5. Umuvuduko wa Batiri mugihe cyo kwishyuza no gusohora
Birashobora kugaragara ku gishushanyo gikurikira ko leta yishyurwa iratandukanye cyane mumitwaro itandukanye mugihe cyo gusohora.Muri rusange rero, uburyo bwa voltage yumuzunguruko ikwiranye gusa na sisitemu isaba uburinganire buke bwimiterere yumuriro, nkimodoka zikoresha bateri-acide cyangwa amashanyarazi adahagarara.
Igicapo 6. Umuvuduko wa Batiri munsi yimizigo itandukanye mugihe cyo gusohora
2.3 Uburyo bwa Coulometric
Ihame ryimikorere ya coulometry nuguhuza résistoriste yo gushakisha inzira yo kwishyuza / gusohora bateri.ADC ipima voltage kumurwanya wo gutahura ikayihindura mubiciro byubu bya bateri yishyurwa cyangwa isohotse.Igihe nyacyo (RTC) irashobora guhuza agaciro kigihe nigihe cyo kumenya umubare wa coulombs zitemba.
Igicapo 7. Uburyo bwibanze bwakazi bwuburyo bwo gupima coulomb
Uburyo bwa Coulometric burashobora kubara neza igihe nyacyo cyo kwishyuza mugihe cyo kwishyuza cyangwa gusohora.Hamwe na konti ya coulomb yishyurwa no gusohora coulomb, irashobora kubara ubushobozi bwamashanyarazi asigaye (RM) nubushobozi bwuzuye (FCC).Muri icyo gihe, ubushobozi bwo kwishyuza busigaye (RM) hamwe nubushobozi bwuzuye bwo kwishyuza (FCC) nabwo burashobora gukoreshwa mukubara leta yishyurwa (SOC = RM / FCC).Mubyongeyeho, irashobora kandi kugereranya igihe gisigaye, nkumunaniro wumuriro (TTE) nimbaraga zuzuye (TTF).
Igicapo 8. Uburyo bwo kubara uburyo bwa coulomb
Hariho ibintu bibiri byingenzi bitera gutandukana neza kwa metero ya coulomb.Iya mbere ni ugukusanya amakosa ya offset muburyo bwo kwiyumvisha no gupima ADC.Nubwo ikosa ryo gupimwa ari rito ugereranije nubuhanga bugezweho, niba nta buryo bwiza bwo kubikuraho, ikosa riziyongera hamwe nigihe.Igishushanyo gikurikira kirerekana ko mubikorwa bifatika, niba nta gukosora mugihe cyigihe, ikosa ryegeranijwe ntirigira umupaka.
Igicapo 9. Ikosa ryo gukusanya uburyo bwa coulomb
Kugirango ukureho ikosa ryegeranijwe, haribintu bitatu bishoboka mugihe cyibikorwa bisanzwe bya bateri: iherezo ryamafaranga (EOC), iherezo ryisohoka (EOD) nuburuhukiro (Relax).Batare yuzuye kandi leta yishyurwa (SOC) igomba kuba 100% mugihe amaherezo yo kwishyuza ageze.Imiterere yo kurangiza isohoka bivuze ko bateri yasohotse burundu kandi leta yishyurwa (SOC) igomba kuba 0%;Irashobora kuba voltage yuzuye cyangwa guhinduka hamwe numutwaro.Iyo ugeze ahasigaye, bateri ntabwo yishyurwa cyangwa ngo isohore, kandi iguma muriyi leta igihe kirekire.Niba umukoresha ashaka gukoresha reta isigaye ya bateri kugirango akosore amakosa yuburyo bwa coulometric, agomba gukoresha voltmeter ifunguye-yumuzingi muriki gihe.Igishushanyo gikurikira kirerekana ko imiterere yikosa ryishyurwa mubihe byavuzwe haruguru irashobora gukosorwa.
Igicapo 10. Ibisabwa kugirango ukureho ikosa ryuburyo bwuburyo bwa coulometric
Ikintu cya kabiri cyingenzi gitera gutandukana kwuburyo bwa metero ya coulomb nubushobozi bwuzuye bwo kwishyuza (FCC), aribwo itandukaniro riri hagati yubushobozi bwa bateri nubushobozi bwuzuye bwuzuye bwa bateri.Ubushobozi bwuzuye (FCC) buzaterwa nubushyuhe, gusaza, umutwaro nibindi bintu.Kubwibyo, kongera kwiga no kwishyurwa byubushobozi bwuzuye byuzuye ni ngombwa kuburyo bwa coulometric.Igishushanyo gikurikira kirerekana inzira yikosa rya SOC mugihe ubushobozi bwuzuye bwo kwishyurwa burenze urugero kandi budahabwa agaciro.
Igicapo 11. Inzira yibeshya mugihe ubushobozi bwuzuye bwo kwishyurwa burenze urugero kandi budahabwa agaciro
Igihe cyo kohereza: Gashyantare-15-2023