Intshayelelo:
Iibhetri zeLithiumZiya zithandwa kakhulu kwiindlela ezahlukeneyo zokusebenza ngenxa yobuninzi bazo bamandla, ubomi obude, ubunzima obulula kunye neempawu ezinobuhlobo nokusingqongileyo. Le ndlela iye yanda yaya nakwiinqwelo zegalufa, apho abavelisi abaninzi bekhetha iibhetri ze-lithium endaweni yeebhetri zemveli ze-lead-acid. Nangona kunjalo, inkxalabo eqhelekileyo phakathi kwabanini beenqwelo zegalufa kukuba kungenzeka ukuba iibhetri ze-lithium zitshajwe kakhulu kunye nempembelelo yazo ekusebenzeni kwazo kunye nobude bazo.
Ukuqonda ukutshaja kwebhetri yeLithium
Ukuze kusonjululwe le ngxaki, kubalulekile ukuqonda kuqala iziseko zokutshaja kwebhetri ye-lithium. Ngokungafaniyo neebhetri ze-lead-acid,iibhetri ze-lithiumifuna iindlela ezithile zokutshaja ukuqinisekisa ukusebenza kakuhle kunye nokhuseleko. Inkqubo yokutshaja idla ngokubandakanya amanqanaba amabini: i-constant current (CC) kunye ne-constant voltage (CV).
Ngexesha lesigaba samandla angapheliyo, ibhetri itshaja ngesantya esizinzileyo ide ifikelele kwi-voltage emiselweyo. Nje ukuba le voltage ifikelele, itshaja itshintshela kwisigaba samandla angapheliyo, apho i-voltage ihlala ingaguquki ngelixa amandla angaphantsi ehla kancinci kancinci. Le nkqubo yokutshaja enamanqanaba amabini yenzelwe ukwandisa ubomi bebhetri kunye nokusebenza kwayo.
Impembelelo Yokutshaja Ngokugqithisileyo
Ukutshaja kakhulu kwenzeka xa i-voltage yokutshaja yebhetri idlula inqanaba elicetyiswayo. Oku kunokukhokelela kwiingxaki ezahlukeneyo, kubandakanya ubomi bebhetri obufutshane, amandla aphantsi, kwaye kwiimeko ezigqithisileyo, ukubaleka kobushushu kunye nomlilo. Xa kufikwa kwiibhetri zenqwelo yegalufa, ukutshaja kakhulu kunokuchaphazela kakhulu ukusebenza kunye nobomi bebhetri ye-lithium-ion.
Enye yeengxaki eziphambili zokutshaja kakhuluiibhetri zenqwelo yegalufa ye-lithiumkukuba ubomi bomjikelo bunokuncipha. Ubomi bomjikelo bubhekisa kwinani lemijikelo yokukhupha itshaja ibhetri enokudlula kuyo ngaphambi kokuba umthamo wayo uwele ngaphantsi komda othile. Ukutshaja kakhulu kukhawulezisa ukonakala kwezinto ezisebenzayo zebhetri, nto leyo ebangela ukuba ubomi bomjikelo bunciphe kunye nobomi bonke.
Ukongeza ekufinyezeni ubomi bomjikelo, ukutshaja kakhulu kunokubangela ukwanda kokumelana kwangaphakathi kwebhetri. Oku kunokubangela amaqondo obushushu aphezulu okusebenza, ukusebenza kakuhle kwamandla aphantsi, kunye nokusebenza okuphantsi ngokubanzi. Kwimeko yeekharethi zegalufa, ezi mpembelelo zinokubangela ukwehla komgama wokuqhuba, ukwehla kwamandla okukhupha, kwaye ekugqibeleni amava omsebenzisi anciphe.
Ukongeza ekufinyezeni ubomi bomjikelo, ukutshaja kakhulu kunokubangela ukwanda kokumelana kwangaphakathi kwebhetri. Oku kunokubangela amaqondo obushushu aphezulu okusebenza, ukusebenza kakuhle kwamandla aphantsi, kunye nokusebenza okuphantsi ngokubanzi. Kwimeko yeekharethi zegalufa, ezi mpembelelo zinokubangela ukwehla komgama wokuqhuba, ukwehla kwamandla okukhupha, kwaye ekugqibeleni amava omsebenzisi anciphe.
Ukuthintela Ukutshaja Okugqithisileyo
Ukunciphisa umngcipheko wokutshaja kakhulu, abanini beenqwelo zegalufa kunye nabaqhubi kufuneka baziqhelise iindlela ezifanelekileyo zokutshaja kwaye basebenzise iitshaja ezenzelwe ngokukodwa iibhetri ze-lithium-ion. Oku kuquka ukusebenzisa itshaja exhotyiswe ngeendlela zokulawula i-voltage kunye nolawulo lwangoku ukuthintela ukutshaja kakhulu, kunye nokunamathela kwimigaqo yokutshaja ecetyiswayo ngumenzi.
Kwangaxeshanye, ukuphumezainkqubo yolawulo lwebhetri (i-BMS)inokubonelela ngomaleko owongezelelweyo wokhuseleko ekutshajisweni okugqithisileyo nakwezinye iingxaki ezinokubakho. Iinkqubo ze-BMS zenzelwe ukujonga nokulinganisela ii-voltage zeseli nganye, ukuqinisekisa ukuba iibhetri zisebenza ngaphakathi kwemida ekhuselekileyo kwaye zithintele ukutshajiswa okugqithisileyo okanye ukungabi namali kwiiseli ezithile.
Isiphelo
Ukutshaja kakhuluibhetri yenqwelo yegalufa ye-lithiuminokuba nemiphumo emibi ekusebenzeni kwayo, ubomi bayo, kunye nokhuseleko lwayo. Kubalulekile ukuqonda iimfuno zokutshaja zeebhetri ze-lithium kunye nokusebenzisa iitshaja ezifanelekileyo kunye neenkqubo zokutshaja ukuthintela ukutshaja kakhulu. Ukulandela izikhokelo zomenzi, ukusebenzisa iitshaja ezihambelanayo, kwaye, xa zifumaneka, ukuthembela kwiiNkqubo zoLawulo lweeBhetri ezakhelwe ngaphakathi kunokunceda ukuqinisekisa ukuba iibhetri zenqwelo yegalufa ye-lithium zihlala ixesha elide kwaye zikhuselekile. Ngokuthatha la manyathelo okhuseleko, abanini beenqwelo yegalufa banokonwabela izibonelelo zeebhetri ze-lithium ngelixa bekhulisa ubomi babo kwaye benciphisa iingozi ezinokubakho.
Ukuba unemibuzo okanye ungathanda ukwazi okungakumbi, nceda ungathandabuzi ukubuzaqhagamshelana nathi.
Isicelo seNgqikelelo:
UJacqueline:jacqueline@heltec-energy.com/ +86 185 8375 6538
Impumelelo:sucre@heltec-bms.com/ +86 136 8844 2313
UNancy:nancy@heltec-energy.com/ +86 184 8223 7713
Ixesha lokuthumela: Agasti-06-2024