Ehlabathini leebhetri, kukho iibhetri ezinesekhethi yokubeka iliso kwaye kukho iibhetri ezingenazo.I-Lithium ithathwa njengebhetri ehlakaniphile kuba iqulethe ibhodi yesekethe eprintiweyo elawula ukusebenza kwebhetri ye-lithium.Kwelinye icala, ibhetri yeasidi etywiniweyo eqhelekileyo ayinalo naluphi na ulawulo lwebhodi yokwandisa ukusebenza kwayo.?
Kwi smart lithium ibhetrikukho 3 amanqanaba asisiseko olawulo.Inqanaba lokuqala lolawulo lulula ukulinganisa okwandisa nje i-voltages yeeseli.Inqanaba lesibini lolawulo yimodyuli yesiphaluka esikhuselayo (PCM) ekhusela iiseli ze-voltages eziphezulu / eziphantsi kunye nemisinga ngexesha lokutshaja kunye nokukhutshwa.Inqanaba lesithathu lolawulo yinkqubo yokulawula ibhetri (BMS).I-BMS inazo zonke izakhono zesekethe yokulinganisela kunye nemodyuli yesekethe yokukhusela kodwa inomsebenzi owongezelelweyo wokuphucula ukusebenza kwebhetri kubomi bayo bonke (njengokubeka iliso kwimeko yentlawulo kunye nesimo sempilo).
LITHIUM BALANCING ISEKELA
Kwibhetri enetshiphu yokulinganisa, itshiphu ilinganisela ngokulula amandla ombane eeseli ezikwibhetri ngelixa itshaja.Ibhetri ithathwa njengolungelelwano xa zonke ii-voltages zeeseli ziphakathi kokunyamezelana okuncinci omnye komnye.Kukho iindidi ezimbini zokulinganisa, ezisebenzayo kunye nokwenziwa.Ulungelelwaniso olusebenzayo lwenzeka ngokusebenzisa iiseli ezinombane ophezulu ukuhlawulisa iiseli ezinombane ophantsi ngaloo ndlela kuncitshiswa umahluko wombane phakathi kweeseli de zonke iiseli zingqamane ngokusondeleyo kwaye ibhetri ihlawulwe ngokupheleleyo.I-Passive balancing, esetyenziswa kuzo zonke iibhetri ze-Power Sonic ze-lithium, kuxa iseli nganye ine-resistor ehambelanayo eguqulwayo xa i-voltage yeseli ingaphezulu komgubasi.Oku kwehlisa intlawulo yangoku kwiiseli ezinombane ophezulu ovumela ezinye iiseli ukuba zibambe.
Kutheni kubalulekile ukulungelelanisa iiseli?Kwiibhetri ze-lithium, ngokukhawuleza ukuba iseli ye-voltage ephantsi kakhulu ibetha i-voltage yokukhupha inqunyulwe, iya kuvala ibhetri yonke.Oku kusenokuthetha ukuba ezinye iiseli zinamandla angasetyenziswanga.Ngokunjalo, ukuba iiseli azilungelelananga xa utshaja, ukutshaja kuya kuphazamiseka kamsinya nje ukuba iseli enombane ophezulu wombane ifikelele kumbane osikiweyo kwaye ayizizo zonke iiseli eziya kuhlawuliswa ngokupheleleyo.
Yintoni embi ngaloo nto?Ukusoloko ukutshaja nokukhupha ibhetri engalungelelananga kuya kuthoba umthamo webhetri ekuhambeni kwexesha.Oku kukwathetha ukuba ezinye iiseli ziyakutshajwa ngokupheleleyo, kwaye ezinye aziyi, okukhokelela kwibhetri enokuthi ingafikeleli kwi-100% yeState of Charge.
Ithiyori kukuba iiseli ezilungeleleneyo zonke ziphuma ngesantya esifanayo, kwaye ke ngoko zinqunyulwe kwi-voltage efanayo.Oku akusoloko kuyinyani, ngoko ke ukuba netshiphu yokulinganisa kuqinisekisa ukuba xa utshaja, iiseli zebhetri zinokutshatiswa ngokupheleleyo ukukhusela umthamo webhetri kunye nokutshajwa ngokupheleleyo.
IMODULI YOKHUSELEKO YELITHIUM
Imodyuli yoKhuseleko yeSekethe iqulethe isekethe yebhalansi kunye neesekethe ezongezelelweyo ezilawula iiparamitha zebhetri ngokukhusela ukutshaja ngokugqithisileyo kunye nokukhupha ngaphezulu.Ikwenza oku ngokubeka iliso langoku, i-voltages, kunye namaqondo obushushu ngexesha lokuhlawuliswa kunye nokukhutshwa kunye nokuthelekisa imida emiselweyo.Ukuba nayiphi na enye yeeseli zebhetri ibetha enye yaloo mida, ibhetri iyacima ukutshaja okanye ukukhupha ngokufanelekileyo de kube kuhlangatyezwane nendlela yokukhupha.
Kukho iindlela ezimbalwa zokuvula ukutshaja okanye ukukhupha kwakhona emva kokuba ukhuseleko lukhutshiwe.Eyokuqala isekelwe kwixesha, apho isibali-xesha sibala ixesha elincinane (umzekelo, imizuzwana engama-30) emva koko ikhuphe ukhuseleko.Esi sibali-xesha sinokwahluka kukhuselo ngalunye kwaye lukhuselo lwenqanaba elinye.
Eyesibini lixabiso elisekwe, apho ixabiso kufuneka lehle ngaphantsi komda ukuze kukhululwe.Umzekelo, ii-voltages zonke kufuneka zehle ngaphantsi kwe-3.6 volts ngeseli nganye ukuze kukhuselwe ukhuseleko lokutshaja ngaphezulu.Oku kunokwenzeka ngokukhawuleza emva kokuba imeko yokukhululwa idibene.Inokwenzeka kwakhona emva kwexesha elimiselweyo.Ngokomzekelo, i-voltages yonke kufuneka ilahle phantsi kwe-3.6 volts nganye kwiseli yokukhusela ngokugqithisileyo kwaye kufuneka ihlale ngaphantsi komda we-6 imizuzwana ngaphambi kokuba i-PCM ikhuphe ukhuseleko.
Okwesithathu kusekelwe kumsebenzi, apho kufuneka kuthathwe inyathelo lokukhulula ukhuseleko.Umzekelo, isenzo sisenokuba kukukhupha umthwalo okanye ukusebenzisa intlawulo.Kanye njengokukhutshwa kokhuseleko olusekwe kwixabiso, oku kukhululwa kunokuthi kwenzeke kwangoko okanye kusekwe kwixesha.Oku kunokuthetha ukuba umthwalo kufuneka ususwe kwibhetri imizuzwana engama-30 phambi kokuba ukhuselo lukhululwe.Ukongeza kwixesha kunye nexabiso okanye umsebenzi kunye nokukhutshwa kwexesha elisekelwe kwixesha, kubalulekile ukuqaphela ukuba ezi ndlela zokukhululwa zinokuthi zenzeke kwezinye iindibaniselwano.Umzekelo, umbane wokukhupha umbane ogqithileyo unokuba kanye ukuba iiseli zehle ngaphantsi kwe-2.5 volts kodwa ukutshaja imizuzwana eyi-10 kuyafuneka ukuze ufike kuloo mbane.Olu hlobo lokukhululwa lugubungela zonke iintlobo ezintathu zokukhutshwa.
Siyaqonda ukuba zininzi izinto eziya ekukhetheni eyona ilungileyo ibhetri ye-lithium, kwaye iingcali zethu zilapha ukunceda.Ukuba unemibuzo eyongezelelweyo malunga nokukhetha ibhetri eyiyo kwisicelo sakho, nceda uzive ukhululekile ukufikelela kwenye yeengcali zethu namhlanje.
Ixesha lokuposa: Apr-29-2024
