Chiyambi:
Mwachidule, kulinganiza ndi mphamvu yapakati yolinganiza. Sungani mphamvu yapaketi ya batri ya lithiamuKulinganiza zinthu kumagawidwa m'magulu awiri: kulinganiza zinthu mogwira ntchito (active balancing) ndi kulinganiza zinthu mopanda mphamvu (passive balancing). Ndiye kusiyana kotani pakati pa kulinganiza zinthu mogwira ntchito (active balancing) ndi kulinganiza zinthu mopanda mphamvu (passive balancing) kwa bolodi loteteza batire la lithiamu? Tiyeni tiwone Heltec Energy.
Kulinganiza bwino kwa bolodi yoteteza batri ya lithiamu
Kulinganiza kogwira ntchito ndi kuti chingwe chokhala ndi mphamvu zambiri chimawonjezera mphamvu ku chingwe chokhala ndi mphamvu zochepa, kuti mphamvu zisatayike, mphamvu zambiri zitha kuchepetsedwa, ndipo mphamvu zochepa zitha kuwonjezeredwa. Mtundu uwu wa mphamvu yolinganiza yogwira ntchito ukhoza kusankha kukula kwa mphamvu yolinganiza nokha. Kwenikweni, 2A imagwiritsidwa ntchito kwambiri, ndipo palinso zazikulu zokhala ndi 10A kapena kupitirira apo.
Tsopano zida zoyezera zinthu zomwe zikugwiritsidwa ntchito pamsika zimagwiritsa ntchito mfundo ya transformer, kudalira ma chip okwera mtengo a opanga ma chip. Kuwonjezera pa chip yoyezera zinthu, palinso zinthu zina zodula monga ma transformer, zomwe ndi zazikulu komanso zokwera mtengo.
Zotsatira za kulinganiza bwino ntchito n'zoonekeratu: kugwira ntchito bwino kwambiri, mphamvu zochepa zimasinthidwa ndipo sizimatayika ngati kutentha, ndipo kutayika kokha ndi coil ya transformer.
Mphamvu yolinganiza imatha kusankhidwa ndipo liwiro lolinganiza ndi lachangu. Kulinganiza kogwira ntchito kumakhala kovuta kwambiri mu kapangidwe kake kuposa kulinganiza kosachita zinthu, makamaka njira ya transformer. Mtengo wa BMS wokhala ndi ntchito yolinganiza yogwira ntchito udzakhala wokwera kwambiri kuposa wa kulinganiza kosachita zinthu, komwe kumalepheretsanso pang'ono kukwezedwa kwa kulinganiza kogwira ntchito.BMS.
Kulinganiza pang'ono kwa bolodi loteteza batri la lithiamu
Kulinganiza zinthu mopanda mphamvu kumachitika makamaka powonjezera ma resistors kuti atulutse mphamvu. Zingwe za ma cell okhala ndi mphamvu zambiri zimatulutsidwa munjira yotulutsa kutentha kudera lozungulira, zomwe zimapangitsa kuti resistor izizire. Vuto lake ndilakuti kutulutsa mphamvu kumachokera pa chingwe cha mphamvu zochepa kwambiri, ndipo pali kuthekera kokhala ndi chiopsezo pochaja.
Kulinganiza zinthu mopanda mphamvu kumagwiritsidwa ntchito makamaka chifukwa cha mtengo wake wotsika komanso mfundo yosavuta yogwirira ntchito; vuto lake ndilakuti kumakhala koyenera kutengera mphamvu yotsika kwambiri, ndipo sikungathe kuwonjezera chingwe chamagetsi otsika, zomwe zimapangitsa kuti mphamvu ziwonongeke.
Kusiyana pakati pa kulinganiza kogwira ntchito ndi kulinganiza kosachitapo kanthu
Kulinganiza zinthu mopanda mphamvu n'koyenera kwa mphamvu zochepa komanso zotsika mphamvumabatire a lithiamu, pomwe kulinganiza kogwira ntchito ndikoyenera kugwiritsa ntchito batire ya lithiamu yamphamvu kwambiri komanso yolimba.
Njira zamakono zolipirira balancing zomwe zimagwiritsidwa ntchito nthawi zambiri zimaphatikizapo kukalipiritsa shunt resistor balancing, kukalipiritsa shunt resistor on-off, kulipiritsa batri voltage balancing, kulipiritsa switch capacitor balancing, kulipiritsa buck converter balancing, kulipiritsa inductor balancing, ndi zina zotero. Mukakalipiritsa gulu la mabatire a lithiamu motsatizana, batire iliyonse iyenera kulipiritsa mofanana, apo ayi magwiridwe antchito ndi moyo wa gulu lonse la batire zidzakhudzidwa panthawi yogwiritsa ntchito.
| Mawonekedwe | Kulinganiza zinthu mopanda kusinthasintha | Kulinganiza bwino |
| Mfundo yogwirira ntchito | Gwiritsani ntchito mphamvu yochulukirapo kudzera mu resistors | Linganizani mphamvu ya batri kudzera mu kusamutsa mphamvu |
| Kutaya mphamvu kwakukulu | mphamvu zimawonongeka ngati kutentha pang'ono | kusamutsa bwino mphamvu zamagetsi |
| Mtengo | Zochepa | Pamwamba |
| Kuvuta | Ukadaulo wochepa komanso wokhwima | Kapangidwe ka dera lalitali komanso lovuta kakufunika |
| Kuchita bwino | Kutaya kutentha kochepa | Mphamvu zambiri, pafupifupi palibe kutayika kwa mphamvu |
| Zogwira ntchito | zochitika Mabatire ang'onoang'ono kapena mapulogalamu otsika mtengo | Ma batri akuluakulu kapena mapulogalamu ogwira ntchito bwino |
Mfundo yaikulu ya kulinganiza zinthu mopanda mphamvu ndikupeza mphamvu yolinganiza zinthu mwa kuwononga mphamvu yochulukirapo. Nthawi zambiri, mphamvu yochulukirapo yomwe ili mu batire ya overvoltage imasinthidwa kukhala kutentha kudzera mu resistor, kotero kuti voltage ya batire imakhalabe yofanana. Ubwino wake ndi wakuti dera lolinganiza zinthu mopanda mphamvu ndi losavuta ndipo mtengo wa kapangidwe ndi kukhazikitsa kwake ndi wotsika. Ndipo ukadaulo wolinganiza zinthu mopanda mphamvu ndi wachikulire kwambiri ndipo wakhala ukugwiritsidwa ntchito kwambiri m'njira zambiri zotsika mtengo komanso zazing'ono.mapaketi a batri.
Vuto lake ndilakuti mphamvu zambiri zimatayika chifukwa cha kusintha kwa mphamvu zamagetsi kukhala kutentha kudzera mu kukana. Kugwiritsa ntchito mphamvu zochepa, makamaka m'mabatire akuluakulu, kutayika kwa mphamvu kumakhala koonekeratu, ndipo sikoyenera kugwiritsa ntchito mabatire akuluakulu komanso ogwira ntchito kwambiri. Ndipo chifukwa mphamvu zamagetsi zimasinthidwa kukhala kutentha, zingayambitse kuti batire itenthe kwambiri, zomwe zimakhudza chitetezo ndi moyo wa dongosolo lonse.
Kulinganiza bwino kumakwaniritsa kulinganiza mwa kusamutsa mphamvu zamagetsi zochulukirapo kuchokera ku mabatire okhala ndi mphamvu zambiri kupita ku mabatire okhala ndi mphamvu zochepa. Njirayi nthawi zambiri imasintha kugawa kwa mphamvu pakati pa mabatire kudzera mu kusinthana kwa magetsi, ma buck-boost converters kapena zida zina zamagetsi. Ubwino wake ndi kugwira ntchito bwino kwambiri: mphamvu sizimawonongeka, koma zimayendetsedwa bwino posuntha, kotero palibe kutayika kwa kutentha, ndipo kugwira ntchito bwino nthawi zambiri kumakhala kwakukulu (mpaka 95% kapena kuposerapo).
Kusunga mphamvu: Popeza palibe kuwononga mphamvu, ndi koyenera kugwiritsidwa ntchito ndi mphamvu zambiri komanso ntchito yabwino kwambiribatri ya lithiamumakina ndipo amatha kukulitsa moyo wa ntchito ya paketi ya batri. Imagwira ntchito pa mabatire akuluakulu: Kulinganiza bwino kwachangu ndikoyenera kwambiri pa mabatire akuluakulu, makamaka pazochitika monga magalimoto amagetsi ndi makina osungira mphamvu, ndipo kungathandize kwambiri magwiridwe antchito ndi kupirira kwa dongosolo.
Vuto lake ndilakuti kapangidwe ndi kukhazikitsa njira yolumikizirana yogwira ntchito ndizovuta, nthawi zambiri zimafuna zida zamagetsi zambiri, kotero mtengo wake ndi wokwera. Kuvuta kwaukadaulo: Kuwongolera kolondola ndi kapangidwe ka dera ndikofunikira, zomwe zimakhala zovuta ndipo zitha kuwonjezera zovuta pakukonza ndi kukonza.
Mapeto
Ngati ndi njira yotsika mtengo, yaying'ono kapena pulogalamu yokhala ndi zofunikira zochepa pakulinganiza, kulinganiza kosachita zinthu kungasankhidwe; pamakina a batri omwe amafunikira kuyang'anira bwino mphamvu, mphamvu yayikulu kapena magwiridwe antchito apamwamba, kulinganiza kogwira ntchito ndi chisankho chabwino.
Kampani ya Heltec Energy imapanga ndi kupanga zida zoyesera ndi kukonza mabatire zomwe zimagwira ntchito bwino kwambiri, ndipo imapereka njira zothetsera mavuto popanga mabatire, kupanga mapaketi, komanso kukonza mabatire akale.mabatire a lithiamu.
Heltec Energy nthawi zonse yakhala ikulimbikitsa kupanga zinthu zatsopano payokha, cholinga chachikulu ndikupereka zinthu zodalirika komanso zotsika mtengo kwambiri mumakampani opanga mabatire a lithiamu, komanso ndi lingaliro la "kasitomala choyamba, kupambana kwabwino" kuti apange phindu kwa makasitomala. Pakukula kwake, kampaniyo ili ndi gulu la mainjiniya akuluakulu mumakampani, zomwe zimatsimikizira kupita patsogolo ndi magwiridwe antchito a zinthu zake.
Ngati muli ndi mafunso kapena mukufuna kudziwa zambiri, chonde musazengereze kutifunsatitumizireni uthenga.
Pempho la Mtengo:
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
Nthawi yotumizira: Novembala-26-2024