Nhanganyaya:
Machipisi ane chekuita nemagetsi agara ari chikamu chezvigadzirwa zvakagara zvichitariswa zvakanyanya. Machipisi ekudzivirira mabhatiri rudzi rwemachipisi ane chekuita nemagetsi anoshandiswa kuona mamiriro akasiyana-siyana ekutadza mumabhatiri ane sero rimwe chete uye akawanda-masero. Mumasisitimu emabhatiri emazuva ano, hunhu hwemabhatiri e-lithium-ion hwakakodzera kwazvo kumasisitimu emagetsi anotakurika, asimabhatiri e lithiamukudiwa kushanda mukati memiganhu yakatarwa, tichitarisa pakushanda uye kuchengetedzeka. Nokudaro, kuchengetedzwa kwemapaketi emabhatiri e-lithium-ion kwakakosha uye kwakakosha. Kushandiswa kwemabasa akasiyana-siyana ekudzivirira mabhatiri ndekwekudzivirira kuitika kwemamiriro ezvinhu ekutadza akadai sekuburitsa OCD yakawandisa uye kupisa OT, uye kuwedzera kuchengetedzeka kwemapaketi emabhatiri.
Sisitimu yekugadzirisa mabhatiri inounza tekinoroji yekuyera
Kutanga, ngatitaurei nezvedambudziko rinowanzoitika remabheteri, kugara zvakanaka. Mushure mekunge masero mamwechete agadzira lithium battery pack, kupisa kunogona kumhanya uye mamiriro akasiyana-siyana ekutadza anogona kuitika. Iri ndiro dambudziko rinokonzerwa nekusawirirana kwe lithium battery pack. Masero mamwechete anoumba lithium battery pack haawirirane pakukwanisa, kuchaja, uye kuburitsa maparamita, uye "mhedzisiro yebarrel" inoita kuti masero mamwechete ane hunhu hwakaipa akanganisa mashandiro ese e lithium battery pack.
Tekinoroji yekuenzanisa mabhatiri e lithium inozivikanwa senzira yakanakisa yekugadzirisa kuenderana kwemapaketi emabhatiri e lithium. Kuenzanisa kuenzanisa ndiko kugadzirisa voltage chaiyo yemabhatiri ane simba rakasiyana nekugadzirisa simba remagetsi. Kukwanisa kuenzana kwakasimba, ndiko kwakasimba kwekudzora kuwedzera kwemusiyano wemagetsi uye kudzivirira kupisa, uye zviri nani kuchinjika kunepakiti yebhatiri re lithium.
Izvi zvakasiyana nemudziviriri wemidziyo uri nyore. Dziviriri yebhatiri re lithium inogona kuva dziviriri yepamusoro-soro kana dziviriri yepamusoro-soro inogona kupindura kusimba kwemagetsi, kutadza kwekupisa kana kukanganisa kwemagetsi. Kazhinji, IC yekutarisira bhatiri padanho re lithium battery monitor uye fuel gauge inogona kupa lithium battery balancing function. Lithium battery monitor inopa lithium battery balancing function uye inosanganisirawo IC protection function ine high configurability. Fuel gauge ine grade yepamusoro yekubatanidzwa, kusanganisira basa re lithium battery monitor, uye inobatanidza advanced monitoring algorithms zvichibva pairi.
Zvisinei, mamwe maIC ekudzivirira mabhatiri e lithium ikozvino anewo mabasa ekuenzanisa mabhatiri e lithium kuburikidza nemaFET akabatanidzwa, ayo anogona kuburitsa otomatiki mabhatiri ane voltage yakazara panguva yekuchaja uye kuchengetedza mabhatiri ane voltage yakaderera ari akatevedzana, nokudaro achienzanisalithium bhatiri packPamusoro pekushandisa mabasa akazara ekudzivirira magetsi, magetsi emagetsi uye tembiricha, maIC ekudzivirira mabhatiri ari kutangawo kuunza mabasa ekuenzanisa kuti agutse zvinodiwa zvekuchengetedza mabhatiri akawanda.
Kubva pakuchengetedzwa kwekutanga kusvika pakudzivirirwa kwechipiri
Kubva pakuchengetedzwa kwekutanga kusvika pakudzivirirwa kwechipiri
Dziviriro huru ndeyekudzivirira overvoltage. MaIC ese ekudzivirira mabhatiri e lithium anopa dziviriro overvoltage zvichienderana nemazinga akasiyana ekudzivirira. Pachikonzero ichi, mamwe anopa dziviriro overvoltage pamwe nekubuda kwemvura yakawanda, uye mamwe anopa overvoltage pamwe nekubuda kwemvura yakawanda pamwe nekudzivirira kupisa. Kune mamwe mabheteri e lithium ane masero akawanda, dziviriro iyi haichakwani kusangana nezvinodiwa nebheteri re lithium. Panguva ino, inodiwa lithium battery protection IC ine lithium battery autonomous balancing function.
Iyi IC yekudzivirira ndeyedziviriro yekutanga, iyo inodzora kuchaja nekuburitsa maFET kuti apindure kumhando dzakasiyana dzedziviriro yekukanganisa. Kuenzanisa uku kunogona kugadzirisa dambudziko rekupisa kwemhepo.lithium bhatiri packzvakanaka kwazvo. Kuwanda kwekupisa mubhatiri rimwe chete re lithium kunokonzera kukuvara kweswitch ye lithium battery pack balance uye resistors. Kuenzanisa bhatiri re lithium kunoita kuti bhatiri rega rega re lithium risina dambudziko riri mubhatiri re lithium rienzane kusvika pakukwanisa kwakafanana nemamwe mabhatiri asina kunaka, zvichideredza njodzi yekuti thermal runaway isashande.
Parizvino, kune nzira mbiri dzekuwana lithium battery balancing: active balancing uye passive balancing. Active balancing ndeyekutumira simba kana chaji kubva kumabhatiri ane high-voltage/high-SOC kuenda kumabhatiri ane low-SOC. Passive balancing ndeyekushandisa resistors kushandisa simba remabhatiri ane high-voltage kana high-charge kuti uwane chinangwa chekuderedza musiyano uripo pakati pemabhatiri akasiyana. Passive balancing ine kurasikirwa nesimba kwakanyanya uye njodzi yekupisa. Kana tichienzanisa, active balancing inoshanda zvakanyanya, asi control algorithm yakaoma zvikuru.
Kubva pakudzivirira kwekutanga kusvika pakudzivirira kwechipiri, sisitimu yebhatiri re lithium inofanirwa kuve ne lithium battery monitor kana fuel gauge kuti iwane dziviriro yechipiri. Kunyangwe dziviriro yekutanga ichigona kushandisa maalgorithms ekugadzirisa bhatiri pasina MCU control, dziviriro yechipiri inoda kutumira voltage yebhatiri re lithium uye current kuMCU kuti iite sarudzo dzesystem-level. Ma lithium battery monitors kana fuel gauges ane mabasa ekuenzanisa bhatiri.
Mhedziso
Kunze kwemamonita emabhatiri kana magauge emafuta anopa mabasa ekuenzanisa mabhatiri, maIC ekudzivirira anopa dziviriro yekutanga haasisiri ekudzivirira kwekutanga senge overvoltage. Nekuwedzera kwekushandiswa kwemasero akawanda.mabhatiri e lithiamu, mapaketi emabhatiri ane simba guru achava nezvinodiwa zvepamusoro-soro zvekuchengetedza maIC, uye kuunzwa kwemabasa ekuenzanisa kwakakosha zvikuru.
Kuenzanisa kwakafanana nerudzi rwekugadzirisa. Kuchaja nekuburitsa kwega kwega kuchava nemari shoma yekuenzanisa kuti mutsauko uripo pakati pemabhatiri uenzane. Zvisinei, kana sero rebhatiri kana paki yebhatiri pachayo iine zvikanganiso zvemhando yepamusoro, dziviriro nekuenzanirana hazvigone kuvandudza mhando yebhatiri, uye hazvisi chinhu chakakosha.
Kana muine mibvunzo kana kuti muchida kuziva zvakawanda, musazeza kupindurataura nesu.
Chikumbiro cheKotesheni:
Jacqueline:jacqueline@heltec-energy.com/ +86 185 8375 6538
Sucre:sucre@heltec-bms.com/ +86 136 8844 2313
Nancy:nancy@heltec-energy.com/ +86 184 8223 7713
Nguva yekutumira: Gumiguru-21-2024