Amaphakethe ebhethri e-lithium afana nezinjini ezintula ukulungiswa; aI-BMSngaphandle komsebenzi wokulinganisa umane uwumqoqi wedatha futhi awukwazi ukuthathwa njengohlelo lokuphatha. Kokubili ukulinganisa okusebenzayo nokungenzi lutho kuhlose ukuqeda ukungahambisani phakathi kwephakethe lebhethri, kodwa izimiso zakho zokuqalisa zihluke kakhulu.
Ukuze kube sobala, lesi sihloko sichaza ukulinganisa okuqalwe yi-BMS ngokusebenzisa ama-algorithms njengokulinganisa okusebenzayo, kuyilapho ukulinganisa okusebenzisa izinto eziphikisayo ukuze kuhlakaze amandla kubizwa ngokuthi ukulinganisa okwenziwayo. Ukulinganisa okusebenzayo kuhilela ukudluliswa kwamandla, kanti ukulinganisa okwenziwayo kubandakanya ukuchithwa kwamandla.
Izimiso Zokuklama Iphakethe Lebhethri Eyisisekelo
- Ukushaja kufanele kume lapho iseli lokuqala selishajwe ngokugcwele.
- Ukukhipha kufanele kuphele lapho iseli lokuqala seliphelile.
- Amaseli abuthakathaka aguga ngokushesha kunamaseli anamandla.
- -iseli eneshaji elibuthakathaka ekugcineni izokhawulela iphakethe lebhethri'umthamo osebenzisekayo (isixhumanisi esibuthakathaka).
- Izinga lokushisa lesistimu ngaphakathi kwephakethe lebhethri lenza amaseli asebenza kumazinga okushisa aphakathi nendawo abe buthaka.
- Ngaphandle kokulinganisa, umehluko we-voltage phakathi kwamaseli abuthaka futhi aqine kakhulu uyakhula ngomjikelezo ngamunye wokushaja nokukhipha. Ekugcineni, iseli elilodwa lizosondela ku-voltage ephezulu kuyilapho elinye lisondela ku-voltage encane, kukhinyabeze amandla ephakethe lokushaja nokukhipha.
Ngenxa yokungafani kwamaseli ngokuhamba kwesikhathi kanye nezimo zokushisa ezihlukene kusukela ekufakweni, ukulinganisa kwamaseli kubalulekile.
Amabhethri e-lithium-ion ngokuyinhloko abhekana nezinhlobo ezimbili zokungafani: ukushaja ukungafani nokungafani komthamo. Ukushaja okungafani kwenzeka lapho amaseli anomthamo ofanayo ehluka kancane kancane ekulawuleni. Ukungafani kwamandla kwenzeka uma amaseli anamakhono ahlukene okuqala esetshenziswa ndawonye. Nakuba amaseli ngokuvamile afanelana kahle uma ekhiqizwa ngesikhathi esifanayo ngezinqubo zokukhiqiza ezifanayo, ukungafani kungavela kumaseli anemithombo engaziwa noma umehluko omkhulu wokukhiqiza.
Ukulinganisa Okusebenzayo vs. Ukulinganisa Okungajwayelekile
1. Injongo
Amaphakethe ebhethri aqukethe amaseli amaningi axhumeke ngochungechunge, okungenzeka afane. Ukulinganisa kuqinisekisa ukuthi ukuchezuka kwamandla kagesi weseli kugcinwa ngaphakathi kwebanga elilindelekile, kugcina ukusebenziseka kukonke nokulawuleka, ngaleyo ndlela kuvimbele ukulimala nokwelula impilo yebhethri.
2. Ukuqhathanisa Komklamo
- I-Passive Bancing: Imvamisa ikhipha amaseli kagesi aphezulu isebenzisa izinto eziphikisayo, iguqule amandla engeziwe abe ukushisa. Le ndlela yelula isikhathi sokushaja kwamanye amaseli kodwa isebenza kahle kakhulu.
- Ukulinganisa Okusebenzayo: Indlela eyinkimbinkimbi esabalalisa kabusha ukushaja ngaphakathi kwamaseli phakathi nemijikelezo yokushaja nokukhipha, ukunciphisa isikhathi sokushaja nokwelula ubude bokukhishwa. Ngokuvamile isebenzisa amasu okulinganisa aphansi phakathi nokukhipha kanye namasu okulinganisa aphezulu ngesikhathi sokushaja.
- Ukuqhathanisa okuhle nokubi: Ukulinganisa okwenziwayo kulula futhi kushibhile kodwa akusebenzi kahle, njengoba kumosha amandla njengokushisa futhi kunemiphumela ehamba kancane yokulinganisa. Ukulinganisa okusebenzayo kusebenza kahle kakhulu, kudlulisa amandla phakathi kwamaseli, okuthuthukisa ukusebenza kahle kokusetshenziswa kwawo wonke futhi kuzuza ibhalansi ngokushesha okukhulu. Nokho, kuhilela izakhiwo eziyinkimbinkimbi nezindleko eziphakeme, nezinselele ekuhlanganiseni lawa masistimu kuma-IC azinikele.
Isiphetho
Umqondo we-BMS waqale wathuthukiswa phesheya, ngemiklamo yokuqala ye-IC egxile ekutholeni amandla kagesi nezinga lokushisa. Umqondo wokulinganisa wethulwa ngokuhamba kwesikhathi, ekuqaleni kusetshenziswa izindlela zokukhipha eziphikisayo ezihlanganiswe kuma-IC. Le ndlela manje isisabalele, nezinkampani ezifana ne-TI, MAXIM, ne-LINEAR ezikhiqiza ama-chips anjalo, amanye ahlanganisa ama-switch driver kuma-chip.
Kusukela ezimisweni zokulinganisa kanye nemidwebo, uma iphakethe lebhethri liqhathaniswa nomgqomo, amaseli afana nezinti. Amangqamuzana anamandla amakhulu angamapulangwe amade, kanti lawo anamandla aphansi angamapulangwe amafushane. Ukulinganisa okwenziwayo kuphela "kufinyeza" amapulangwe amade, okuholela ekumosheni kwamandla nokungasebenzi kahle. Le ndlela inemikhawulo, okuhlanganisa ukunqanyulwa kokushisa okuphawulekayo kanye nemiphumela yokulinganisa kancane kumaphakethe amakhulu.
Ukulinganisa okusebenzayo, ngokuphambene, "kugcwalisa amapulangwe amafushane," ukudlulisa amandla kusuka kumangqamuzana anamandla aphezulu kuya kulawo angamandla aphansi, okuholela ekusebenzeni okuphakeme kanye nokuzuza ibhalansi ngokushesha. Nokho, yethula inkimbinkimbi nezinkinga zezindleko, nezinselele ekuklameni ama-switch matrices nokulawula amadrayivu.
Uma kubhekwa ukuhwebelana, ukulinganisa kokwenziwa kungase kulungele amaseli anokuvumelana okuhle, kuyilapho ukulinganisa okusebenzayo kukhethwa kumaseli anokwehluka okukhulu.
Isikhathi sokuthumela: Aug-27-2024
