Chiyambi：
Vuto lalikulu pakukonza mabatire ndi ntchito zokulitsa ma paketi a batire a lithiamu ndilakuti ngati ma seti awiri kapena angapo a ma paketi a batire a lithiamu akhoza kulumikizidwa mwachindunji motsatizana kapena motsatizana. Njira zolumikizira zolakwika sizingopangitsa kuti batire igwire ntchito pang'ono, komanso zitha kuyambitsa zoopsa zachitetezo monga ma short circuits ndi kutentha kwambiri. Kenako, tifufuza mwatsatanetsatane njira zoyenera komanso zodzitetezera polumikizira ma paketi a batire a lithiamu kuchokera ku malingaliro ofanana komanso otsatizana.
Kulumikizana kofanana kwa paketi ya batri ya lithiamu: kutsindika kofanana pa mikhalidwe ndi chitetezo
Kulumikizana kofanana kwa mapaketi a batri a lithiamu kungagawidwe m'magawo awiri, omwe ndi maziko ake ndi ngati magawo a mapaketi a batri ndi ofanana komanso ngati njira zodzitetezera zofunika zatengedwa.
(1) Kulumikizana kolunjika kofanana pamene magawo ali ogwirizana
Pamene mphamvu yamagetsi, mphamvu, kukana kwamkati, mtundu wa selo ndi zina zomwe zimagwiritsidwa ntchito m'magawo awiri a mabatire a lithiamu zili zofanana, ntchito yofanana ikhoza kuchitika mwachindunji. Mwachitsanzo, magulu awiri a mabatire a lithiamu okhala ndi kapangidwe ka 4-series ndi voltage yodziwika ya 12V, akadzadza mokwanira komanso ndi voltage yomweyo, amatha kulumikizidwa motsatizana polumikiza pole yawo yonse yabwino ku pole yonse yabwino ndi pole yonse yoipa ku pole yonse yoipa. Tiyenera kutsindika kuti paketi iliyonse ya batire iyenera kukhala ndi bolodi lodziyimira payokha loteteza kuti liwonetsetse kuti batire ikugwira ntchito yowonjezera mphamvu, yotulutsa mphamvu, komanso yoteteza nthawi yochepa.
(2) Chiwembu chofanana pamene magawo sakugwirizana
Mu ndondomeko yeniyeni yokonza, nthawi zambiri mumakumana ndi mabatire okhala ndi magulu osiyanasiyana a maselo, ngakhale magetsi odziwika bwino ali ofanana (monga 12V), pali kusiyana kwa mphamvu (50Ah ndi 60Ah) ndi kukana kwamkati. Pankhaniyi, kulumikizana mwachindunji kudzabweretsa zoopsa zazikulu - pamene magetsi a magulu awiri a batire ali osiyana (monga 14V ndi 12V), gulu la batire lamphamvu lidzachaja mwachangu gulu la batire lamphamvu. Malinga ndi lamulo la Ohm, ngati kukana kwamkati kwa batire lamphamvu ndi 2 Ω, mphamvu yochaja ya instantaneous mutual ikhoza kufika 1000A, zomwe zingayambitse batire kutentha, kutupa, kapena ngakhale kuyaka moto.
Kuti muthane ndi vutoli, zida zodzitetezera zomwe zikugwirizana ziyenera kuwonjezeredwa:
Sankhani bolodi loteteza lomwe lili ndi ntchito yoletsa mphamvu yamagetsi yomangidwa mkati: Mabolodi ena oteteza apamwamba ali ndi mawonekedwe ofanana a mphamvu yamagetsi, omwe amatha kuchepetsa mphamvu yamagetsi yolumikizana mkati mwa malo otetezeka.
Kukhazikitsa gawo loletsa mphamvu yamagetsi yofanana ndi yakunja: Ngati bolodi loteteza silili ndi ntchito imeneyi, gawo lina lowonjezera laukadaulo loletsa mphamvu yamagetsi likhoza kukonzedwa kuti liwongolere mphamvu yamagetsi pamlingo woyenera ndikuwonetsetsa kuti kulumikizana kuli kotetezeka.
Kulumikizana kwa batri ya lithiamu motsatizana: zofunikira kwambiri komanso kusintha
Poyerekeza ndi kulumikizana kofanana, kulumikizana kwa ma batri a lithiamu kumafuna kusinthasintha kolimba kwa batri. Mukalumikizidwa motsatizana, kumatha kuyerekezeredwa ndi njira yosonkhanitsira maselo amkati mwa batri mu batri, yomwe imafuna magawo ogwirizana kwambiri monga magetsi, mphamvu, kukana kwamkati, ndi kuchuluka kwa kutulutsa kwamadzimadzi pakati pa ma batri awiri. Kupanda kutero, kugawa kwa magetsi kosagwirizana kungachitike, zomwe zimapangitsa kuti ma batri agwire ntchito molakwika.
Kuphatikiza apo, mphamvu yonse yamagetsi pambuyo pa kulumikizana kwa mndandanda ndi kuchuluka kwa mphamvu yamagetsi ya gulu limodzi (monga mabatire awiri a 12V olumikizidwa mu mndandanda wa 24V), zomwe zimapangitsa kuti mphamvu yamagetsi yokhazikika ya chubu cha Mos mu bolodi loteteza ikhale yofunikira kwambiri. Mabolodi oteteza wamba nthawi zambiri amakhala oyenera magulu amagetsi amodzi okha. Akagwiritsidwa ntchito mu mndandanda, nthawi zambiri pamafunika kusintha mabolodi oteteza amphamvu kwambiri kapena kusankha njira zoyendetsera mabatire akatswiri (BMS) zomwe zimathandiza zingwe zingapo kuti zitsimikizire chitetezo ndi kukhazikika kwa paketi ya batire yolumikizidwa mu mndandanda panthawi yochaja ndi kutulutsa.
Malangizo Oteteza ndi Malangizo Othandiza
Kulumikizana kwapadera kwa ma batri a Lithium ndi koletsedwa kotheratu: Ma batri a Lithium a mitundu yosiyanasiyana ndi magulu osiyanasiyana saloledwa kulumikizidwa mwachindunji popanda chithandizo chifukwa cha kusiyana kwa mawonekedwe ndi njira zama cell a batri.
Kuyang'anira ndi kukonza nthawi zonse: Dongosolo lofanana liyenera kuyang'ana magetsi a batri mwezi uliwonse, ndipo ngati kusiyanako kukupitirira 0.3V, liyenera kulipidwa padera kuti ligwirizane; Ndikofunikira kulinganiza bwino dongosolo la mndandanda kudzera mu BMS kotala lililonse.
Sankhani zowonjezera zapamwamba: Ndikofunikira kugwiritsa ntchito ma board oteteza ndi BMS zotsimikiziridwa ndi UN38.3, CE, ndi zina zotero. Waya wolumikizira uyenera kusankhidwa ndi waya wokulirapo woyenera malinga ndi katundu wapano kuti upewe kutentha komwe kumachitika chifukwa cha kutayika kwa waya.
Kugwira ntchito kwa mabatire a lithiamu kuyenera kukhazikika pa chitetezo, kuwongolera mosamalitsa kusinthasintha kwa magawo a mabatire, komanso kugwirizana ndi zida zodzitetezera zaukadaulo. Kudziwa bwino mfundo zazikuluzi sikungongowonjezera luso lokonza mabatire, komanso kutsimikizira kuti mabatire a lithiamu akugwira ntchito nthawi yayitali.
Pempho la Mtengo:
Jacqueline:jacqueline@heltec-energy.com/ +86 185 8375 6538
Nancy:nancy@heltec-energy.com/ +86 184 8223 7713
Nthawi yotumizira: Meyi-23-2025