Dzidziso yeLithium kuchaja uye kuburitsa & dhizaini yemagetsi kuverenga nzira
2. Nhanganyaya kune bhatiri mita
2.1 Basa rekusuma mita yemagetsi
Battery manejimendi inogona kutorwa sechikamu chekutonga kwesimba.Mukutonga kwebhatiri, mita yemagetsi ine basa rekufungidzira huwandu hwebhatiri.Basa rayo rekutanga nderekutarisa voltage, kuchaja / kuburitsa ikozvino uye tembiricha yebhatiri, uye kufungidzira mamiriro ekuchaja (SOC) uye yakazara kuchaja huwandu (FCC) yebhatiri.Pane nzira mbiri dzakajairwa dzekufungidzira mamiriro ekuchajiswa kwebhatiri: nzira yakavhurika yemagetsi (OCV) uye nzira yecoulometric.Imwe nzira ndeye dynamic voltage algorithm yakagadzirwa neRICHTEK.
2.2 Vhura dunhu voltage nzira
Zviri nyore kuona mita yemagetsi uchishandisa yakavhurika-circuit voltage nzira, iyo inogona kuwanikwa nekutarisa inoenderana mamiriro echaji yeyakavhurika-circuit voltage.Iyo yakavhurika yedunhu voltage inofungidzirwa kuve bhatiri terminal voltage kana bhatiri richizorora kweanopfuura maminetsi makumi matatu.
Iyo bhatiri voltage curve ichasiyana nemutoro wakasiyana, tembiricha uye kuchembera kwebhatiri.Nokudaro, yakagadziriswa yakazaruka-circuit voltmeter haigoni kumiririra zvakakwana mamiriro ekubhadhara;Mamiriro emutero haagone kufungidzirwa nekutarisa kumusoro kwetafura chete.Mune mamwe mazwi, kana mamiriro ekubhadhara achifungidzirwa chete nekutarisa kumusoro kwetafura, kukanganisa kuchava kukuru.
Nhamba iri pazasi inoratidza kuti mamiriro ekuchaja (SOC) eiyo bhatiri voltage yakasiyana zvakanyanya neyakavhurika-yedunhu voltage nzira pasi pekuchaja nekuburitsa.
Mufananidzo 5. Battery voltage pasi pekuchaja uye kuburitsa mamiriro
Inogona kuonekwa kubva pamufananidzo uri pasi apa kuti mamiriro ekubhadhara anosiyana zvikuru pasi pemitoro yakasiyana panguva yekubuda.Saka zvakanyanya, iyo yakavhurika-yedunhu voltage nzira inokodzera chete masisitimu anoda kudzika kwakadzika kwenzvimbo yekuchaja, senge mota dzinoshandisa mabhatiri e-lead-acid kana magetsi asingapindiki.
Mufananidzo 6. Battery voltage pasi pemitoro yakasiyana panguva yekubuda
2.3 Coulometric nzira
Iyo yekushandisa musimboti yecoulometry ndeyekubatanidza inodzivirira yekuona pane yekuchaja / yekuburitsa nzira yebhatiri.ADC inoyera voltage pane yekudzivirira yekuona uye inoishandura kuita kukosha kwazvino kwebhatiri riri kuchajwa kana kuburitswa.Iyo chaiyo-nguva counter (RTC) inogona kubatanidza kukosha kwazvino nenguva yekuziva kuti mangani coulombs ari kuyerera.
Mufananidzo 7. Basic working mode ye coulomb measurement method
Coulometric nzira inogona kuverengera chaiyo-nguva mamiriro ekuchaja panguva yekuchaja kana kuburitsa.Nechaji coulomb counter uye discharge coulomb counter, inogona kuverenga yasara magetsi emagetsi (RM) uye yakazara kuchaja huwandu (FCC).Panguva imwecheteyo, iyo yakasara yekuchaja chiyero (RM) uye yakazara chaja huwandu (FCC) inogona zvakare kushandiswa kuverenga mamiriro ekuchaja (SOC = RM / FCC).Mukuwedzera, inogonawo kufungidzira nguva yasara, yakadai sekupera simba (TTE) uye kuzara kwesimba (TTF).
Mufananidzo 8. Kuverengera formula ye coulomb nzira
Pane zvinhu zviviri zvakakosha zvinokonzeresa kutsauka kweiyo coulomb metrology.Chekutanga ndiko kuunganidzwa kwekukanganisa kwekukanganisa mukunzwa ikozvino uye kuyerwa kweADC.Kunyangwe chikanganiso chekuyera chiri chidiki nehunyanzvi hwazvino, kana pasina nzira yakanaka yekuibvisa, iko kukanganisa kuchawedzera nekufamba kwenguva.Nhamba iri pasi apa inoratidza kuti mukushanda kunoshanda, kana pasina kugadziriswa munguva yenguva, kukanganisa kwakaunganidzwa hakuna muganhu.
Mufananidzo 9. Cumulative kukanganisa kwecoulomb nzira
Kuti ubvise chikanganiso chakaunganidzwa, pane matatu anogoneka nguva mapoinzi mune yakajairika bhatiri kushanda: kupera kwechaji (EOC), kupera kwekubuda (EOD) uye kuzorora (Relax).Bhatiri rakazara uye mamiriro ekuchaja (SOC) anofanira kunge ari 100% kana mamiriro ekuchaja asvika.Mamiriro ekupedzisira ekuburitsa zvinoreva kuti bhatiri rave raburitswa zvachose uye mamiriro ekuchaja (SOC) anofanira kunge ari 0%;Inogona kuve yakakwana voltage kukosha kana shanduko nemutoro.Kana ichisvika kune imwe nzvimbo yekuzorora, bhatiri haribhadharwi kana kuburitswa, uye rinoramba riri munzvimbo iyi kwenguva yakareba.Kana mushandisi achida kushandisa iyo yakasara yebhatiri kugadzirisa kukanganisa kweiyo coulometric nzira, anofanira kushandisa yakavhurika-circuit voltmeter panguva ino.Mufananidzo uri pasi apa unoratidza kuti mamiriro ekukanganisa pasi pemamiriro ari pamusoro anogona kugadziriswa.
Mufananidzo 10. Mamiriro ekubvisa kukanganisa kwekuwedzera kwenzira ye coulometric
Chinhu chechipiri chikuru chinokonzera kutsauka kwechokwadi kwecoulomb metering nzira ndeye full charge capacity (FCC) kukanganisa, ndiwo mutsauko uripo pakati pekugadzirwa kwebhatiri uye chaiyo yakazara chaji yebhatiri.Yakazara yekuchaja huwandu (FCC) ichakanganiswa nekupisa, kuchembera, mutoro uye zvimwe zvinhu.Nokudaro, iyo yekudzidzira zvakare uye nzira yekubhadhara yehuwandu hwakakwana hunokosha zvikuru kune coulometric nzira.Nhamba iri pazasi inoratidza maitiro eSOC kukanganisa kana iyo yakazara kuchaja huwandu hwakawandisa uye isingatarisirwe.
Mufananidzo 11. Kukanganisa kwemaitiro apo huwandu hwekuchaja hwakazara hwakanyanya uye husingatarisirwi
Nguva yekutumira: Feb-15-2023