Taw qhia:
Hauv cov ntsiab lus yooj yim, ntsuas qhov ntsuas nruab nrab yog qhov ntsuas qhov nruab nrab. Khaws qhov voltage ntawm lublithium roj teeb pobzoo ib yam. Kev sib npaug yog muab faib ua active balancing thiab passive balancing. Yog li dab tsi yog qhov txawv ntawm kev ntsuas ntsuas thiab ntsuas qhov ntsuas ntawm lithium roj teeb tiv thaiv? Cia peb saib nrog Heltec Zog.
Active ntsuas ntawm lithium roj teeb tiv thaiv board
Active ntsuas yog tias ib txoj hlua nrog high voltage ntxiv zog rau ib txoj hlua uas tsis tshua muaj hluav taws xob, kom lub zog tsis nkim, siab voltage tuaj yeem txo qis, thiab tsis tshua muaj hluav taws xob ntxiv. Hom kev ntsuas tam sim no tuaj yeem xaiv qhov ntsuas qhov ntsuas tam sim no los ntawm koj tus kheej. Yeej, 2A feem ntau siv, thiab tseem muaj cov loj loj nrog 10A lossis siab dua.
Tam sim no cov khoom siv sib npaug ntawm kev ua lag luam pib siv lub hauv paus ntsiab lus ntawm kev hloov pauv, tso siab rau cov chips kim ntawm chip manufacturers. Ntxiv nrog rau qhov ntsuas nti, kuj tseem muaj cov khoom siv hluav taws xob uas kim heev xws li transformers, uas yog qhov loj me thiab tus nqi siab.
Cov nyhuv ntawm kev sib npaug yog qhov pom tseeb heev: kev ua haujlwm siab ua haujlwm, tsawg zog hloov dua siab tshiab thiab tsis dissipated nyob rau hauv daim ntawv ntawm tshav kub, thiab tsuas yog poob yog lub kauj ntawm lub transformer.
Qhov ntsuas ntsuas tam sim no tuaj yeem xaiv tau thiab qhov ntsuas ntsuas nrawm nrawm. Active ntsuas yog complex nyob rau hauv cov qauv tshaj passive ntsuas, tshwj xeeb tshaj yog txoj kev transformer. Tus nqi ntawm BMS nrog active balancing muaj nuj nqi yuav ntau dua qhov passive balancing, uas kuj me ntsis txwv kev nce qib ntawm active balancing.BMS.
Passive ntsuas ntawm lithium roj teeb tiv thaiv board
Passive ntsuas qhov tseem ceeb yog ua los ntawm kev ntxiv cov resistors kom tso tawm. Cov hlua high-voltage ntawm cov hlwb raug tso tawm nyob rau hauv daim ntawv ntawm tshav kub dissipation mus rau ib puag ncig thaj tsam, ua tiav cov nyhuv ntawm txias lub resistor. Qhov tsis zoo yog qhov tso tawm raws li cov hlua hluav taws xob qis tshaj plaws, thiab muaj peev xwm ua rau muaj kev pheej hmoo thaum them nyiaj.
Passive balancing feem ntau yog siv vim nws cov nqi qis thiab kev ua haujlwm yooj yim; nws qhov tsis zoo yog qhov sib npaug raws li lub zog qis tshaj plaws, thiab tsis tuaj yeem ntxiv cov hlua hluav taws xob tsawg, ua rau lub zog pov tseg.
Qhov sib txawv ntawm active balancing thiab passive balancing
Passive ntsuas yog tsim rau me-muaj peev xwm, tsawg-voltagelithium roj teeb, thaum muaj kev sib npaug yog tsim rau high-voltage, loj-muaj peev xwm fais fab lithium roj teeb pob daim ntaub ntawv.
Feem ntau siv cov khoom sib npaug them cov thev naus laus zis suav nrog qhov tsis tu ncua shunt resistor ntsuas kev them nyiaj, on-off shunt resistor ntsuas qhov them, nruab nrab roj teeb voltage ntsuas qhov them, hloov capacitor ntsuas qhov them, puck converter ntsuas qhov them, inductor ntsuas kev them nyiaj, thiab lwm yam. Thaum them ib pab pawg ntawm lithium roj teeb hauv series, txhua lub roj teeb yuav tsum tau them tus nqi sib npaug, txwv tsis pub kev ua haujlwm thiab lub neej ntawm tag nrho pawg roj teeb yuav raug cuam tshuam thaum siv.
| Nta | Passive ntsuas | Active ntsuas |
| Txoj cai ua haujlwm | Siv lub zog ntau dhau los ntawm cov resistors | Ntsuas roj teeb lub zog los ntawm kev hloov hluav taws xob |
| Zog poob Loj | zog nkim li cua sov me me | kev hloov pauv hluav taws xob zoo |
| Nqi | Tsawg | Siab |
| nyuaj | Tsawg, paub tab technology | High, complex Circuit Court tsim yuav tsum tau |
| Kev ua tau zoo | Tsawg, kub poob | Siab, yuav luag tsis muaj zog poob |
| Siv tau | Cov xwm txheej Cov roj teeb me me lossis cov ntawv thov raug nqi qis | Cov roj teeb loj loj lossis cov ntawv thov ua haujlwm siab |
Lub hauv paus ntsiab lus ntawm passive balancing yog kom ua tiav qhov sib npaug los ntawm kev siv lub zog ntau dhau. Feem ntau, lub zog dhau ntawm cov roj teeb overvoltage tau hloov mus rau hauv cov cua sov los ntawm cov resistor, kom lub roj teeb voltage tseem zoo ib yam. Qhov zoo dua yog tias passive ntsuas hluav taws xob yog qhov yooj yim thiab tus nqi tsim thiab siv tau tsawg. Thiab cov cuab yeej sib npaug passive yog qhov paub tab thiab tau siv dav hauv ntau tus nqi qis thiab me meroj teeb pob.
Qhov tsis zoo yog tias muaj lub zog loj poob vim qhov hloov pauv ntawm cov hluav taws xob hluav taws xob mus rau hauv tshav kub los ntawm kev ua haujlwm. Tsawg efficiency, tshwj xeeb tshaj yog nyob rau hauv loj-muaj peev xwm roj teeb packs, lub zog pov tseg yog pom tseeb dua, thiab nws tsis haum rau loj-scale, high-kev ua tau zoo daim ntawv thov roj teeb. Thiab vim hais tias cov hluav taws xob hluav taws xob hloov mus rau hauv cov cua sov, nws yuav ua rau lub roj teeb pob overheat, cuam tshuam rau kev nyab xeeb thiab lub neej ntawm tag nrho cov system.
Kev ntsuas ntsuas tau ua tiav qhov ntsuas los ntawm kev hloov hluav taws xob ntau dhau los ntawm cov roj teeb uas muaj qhov hluav taws xob ntau dua rau cov roj teeb uas muaj hluav taws xob qis dua. Txoj kev no feem ntau kho cov hluav taws xob faib nruab nrab ntawm cov roj teeb los ntawm kev hloov cov khoom siv hluav taws xob, cov khoom siv hluav taws xob buck-boost lossis lwm yam khoom siv hluav taws xob. Qhov kom zoo dua yog kev ua haujlwm siab: lub zog tsis nkim, tab sis sib npaug los ntawm kev hloov pauv, yog li tsis muaj cua sov poob, thiab kev ua haujlwm feem ntau yog siab (txog 95% lossis ntau dua).
Kev txuag hluav taws xob: Vim tias tsis muaj hluav taws xob pov tseg, nws tsim nyog rau lub peev xwm loj, ua haujlwm siablithium roj teebsystems thiab tuaj yeem txuas lub neej kev pab cuam ntawm lub roj teeb pob. Muaj feem xyuam rau cov pob roj teeb loj: Kev sib npaug yog qhov tsim nyog rau cov roj teeb uas muaj peev xwm loj, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej xws li tsheb hluav taws xob thiab lub zog cia, thiab tuaj yeem txhim kho kev ua haujlwm tau zoo thiab kev ua siab ntev.
Qhov tsis zoo yog tias kev tsim thiab kev siv ntawm kev sib npaug yog qhov nyuaj, feem ntau yuav tsum muaj cov khoom siv hluav taws xob ntau dua, yog li tus nqi siab dua. Technical complexity: Kev tswj xyuas qhov tseeb thiab kev tsim hluav taws xob yuav tsum tau ua, uas yog qhov nyuaj thiab yuav ua rau muaj kev nyuaj ntawm kev txhim kho thiab kev saib xyuas.
Xaus
Yog tias nws yog tus nqi qis, me me lossis ib daim ntawv thov uas tsis tshua muaj qhov yuav tsum tau ua kom sib npaug, tuaj yeem xaiv qhov sib npaug passive; rau lub tshuab roj teeb uas xav tau kev tswj hwm lub zog zoo, muaj peev xwm loj lossis kev ua haujlwm siab, kev sib npaug yog qhov kev xaiv zoo dua.
Heltec Energy yog ib lub tuam txhab tsim thiab tsim cov khoom siv roj teeb uas muaj kev ua tau zoo thiab kho cov khoom siv, thiab muab cov kev daws teeb meem rau kev tsim khoom rov qab, pob khoom sib dhos, thiab kho cov roj teeb qub raulithium roj teeb.
Heltec Zog yeej ib txwm hais rau kev ywj pheej innovation, nrog lub hom phiaj tseem ceeb ntawm kev muab cov khoom lag luam txhim khu kev qha thiab tus nqi zoo hauv kev lag luam roj teeb lithium, thiab nrog lub tswv yim kev pabcuam ntawm "cov neeg siv khoom ua ntej, kev ua tau zoo" los tsim cov nqi rau cov neeg siv khoom. Thaum lub sij hawm nws txoj kev loj hlob, lub tuam txhab muaj ib pab neeg ntawm senior engineers nyob rau hauv kev lag luam, uas zoo guarantees kev nce qib thiab practicality ntawm nws cov khoom.
Yog tias koj muaj lus nug lossis xav paub ntxiv, thov tsis txhob yighu rau peb.
Thov rau Quotation:
Jacqueline:jacqueline@heltec-bms.com/ +86 185 8375 6538
Sucre:sucre@heltec-bms.com/ +86 136 8844 2313
Nancy:nancy@heltec-bms.com/ +86 184 8223 7713
Post lub sij hawm: Nov-26-2024