Kev daws teeb meem los tswj cov roj hluav taws xob qis hauv cov roj teeb lithium
Tso lus
Hauv cov hluav taws xob niaj hnub, cov hnab ntim roj teeb lithium ntim yog cov khoom tseem ceeb hauv Portable, hluav taws xob tsheb cia. Ib qho kev sib tw tseem ceeb yog qhov ntsuas hluav taws xob tsawg, uas tshwm sim thaum cell lossis ntim voltage poob qis dua qib kev nyab xeeb. Sab laug Unmanaged, qhov qis dua voltage tuaj yeem txwv kev ua tau zoo, luv roj teeb lub neej, thiab nce kev phom sij kom muaj kev phom sij. Tsab ntawv no tshawb nrhiav cov laj thawj thiab cuam tshuam ntawm kev tswj hwm roj teeb lub cev roj teeb (BMS), thiab nthuav tawm cov kev daws teeb meem roj teeb kom txo qis} voltage mob.
1. Vim li cas cov hluav taws xob tsawg tseem ceeb hauv cov roj teeb lithium
Voltage sawv cev cov hluav taws xob muaj peev xwm sib txawv ntawm cov electrodes ntawm lub cell. Nyob rau hauv lub roj teeb pob, voltage txiav txim siab tus nqi siv lub zog siv tau muaj. Thaum voltage poob hauv qab kev nyab xeeb thresholds, ntau yam teeb meem tshwm sim:
Kev txo qhov muaj peev xwm:Zog tso tawm txo li voltage poob.
Nce sab hauv kuj:Voltage SAG nyob rau hauv thauj hauv qab load txo cov hwj chim xa thiab ua tau zoo.
Ua kom muaj kev mob degradation:Rov ua dua cov tshuaj tsis sib thooj thiab tuaj yeem ua rau cov tshuaj lom neeg thiab kev ua kom muaj kev ua kom zoo hauv lub hlwb.
Kev Nyab Xeeb Kev Nyab Xeeb:Tsawg qis voltage yuav ua rau dendrite tsim, tooj liab xaus, lossis sab hauv luv luv.
Kev tshawb fawb qhia tau tias qhov txwv tsis pub them thiab tso tawm ntau ntxiv hluav taws xob lub neej. Kev caij tsheb kauj vab ntawm 75% thiab 25% lub xeev ntawm kev them nqi tuaj yeem khaws cia li 74% ntawm lub peev xwm tom qab muaj peev xwm txo tau muaj zog rau ze li 50% nyob rau tib lub sijhawm. Yog li ntawd, tswj cov hluav taws xob qis yog qhov tseem ceeb rau kev ua tau zoo, ntev, thiab kev nyab xeeb.
2. Lub luag haujlwm ntawm lub roj teeb tswj kev tswj hwm (BMS)
A Kev tswj hwm roj teeb (BMS)Cov saib xyuas thiab tswj cov hluav taws xob, ntsuas kub, thiab xov tooj ntawm tes kom ntseeg tau tias kev ua haujlwm zoo. Nws cov haujlwm muaj xws li:
Kev soj ntsuam thiab undervoltage tiv thaiv:Tshawb nrhiav tsawg - voltage tej yam thiab disconnects lub pob kom tiv thaiv kev puas tsuaj.
Ntawm tes ntsuas:Saib kom ntseeg tus kheej muaj cov hlwb muaj cov kev sib raug zoo sib xyaw, tsis txhob rub cov hlwb tsis muaj zog rub tawm hauv pob.
Cov ntaub ntawv nkag mus thiab txhaum kev txhaum:Txoj kev ntsuas hluav taws xob voltions thiab qhia cov teeb meem muaj peev xwm ua ntej tsis ua haujlwm.
Ib lub bms roust yog qhov tseem ceeb rau kev tiv thaiv qis - voltage cov kev tshwm sim thiab kev tswj hwm ntev}} lub roj teeb ua haujlwm.
3. Cov kev daws teeb meem los tswj cov hluav taws xob tsawg
Kev ua kom zoo ntawm qhov tso tawm (dod)
Txwv tsis pub muaj qhov tob ntawm kev tawm mus pab tiv thaiv kom txhob muaj tsawg- voltage tej yam. Kev ua haujlwm lub roj teeb ntawm 25% thiab 75% lub xeev kev teeb meem txo kev ntxhov siab rau ntawm cov hlwb, qeeb qeeb fade, thiab tswj hwm voltage stability dhau sijhawm.
Lub BMS kom raug BMS
Kev tsim kho kom raug rau hauv BMS yog qhov tseem ceeb heev. Ntau lub suab lithium {{1} ion hlwb yuav tsum tsis txhob poob qis dua 2.5-3.0 v ib cell. BMS yuav tsum kuaj cov voltage sag hauv qab thauj thiab txo cov kev tam sim no lossis cais tawm raws li qhov tsim nyog.
Kev Tswj Kub
Qhov kub cuam tshuam cuam tshuam voltage cwj pwm thiab roj teeb lub neej. Tsis tshua muaj kub nce sab hauv kev tiv taus thiab voltage poob, thaum siab kub siab ua rau muaj kev tsis txaus siab. Tswj cov hlwb tsis pub dhau ib qho kev ntsuas kub zoo tshaj plaws (15-35℃rau ntau cov labiethteries) khaws voltage stability.
Ntawm tes ntsuas thiab txij nkawm
Tsis xwm yeem voltages nyob rau hauv ib pob pob tuaj yeem ua rau muaj cov hlwb tsis muaj zog ua rau tag nrho cov tsawg {{voltage tej xwm txheej. Cov tshev tsis tu ncua thiab saib xyuas rau voltage uniformity pab tiv thaiv thaum ntxov undervoltage txheej xwm thiab txuas ntxiv ntim li cas.
Kev coj ua
Rau ntev - sij hawm cia, roj teeb yuav tsum khaws cia ntawm ib nrab nqi (30-50% lub xeev ntawm kev them nqi) thiab ntsuas kub nruab nrab. Disconnecting loads lossis siv cov kev ntxhua khaub ncaws tuaj yeem tiv thaiv tus kheej {{}}} kev tso tawm ntawm mus txog qhov tsis muaj voltage qib.
System -} qib tsim
Cov kev txiav txim siab tsim muaj peev xwm yuav txo qis qis - voltage pheej hmoo:
● suav nrog kev voltage npoo hauv cov lej / parallel teeb tsa.
● SAIB Voltage Sag thaum thauj khoom siab thiab siv cov tswv yim tswj.
● Tsim ib BMS uas txhawb kev ua txhaum kev sib cais, kom ib lub modraded tsis ruaj tsis kho lub pob tag nrho.
● Kev siv kev twv xyuas kom tau txais kev kuaj mob los hloov lossis rov qab ua haujlwm ua ntej qis {{voltage tshwm sim.
Kuaj thiab simulation
Simulation cov cuab yeej thiab cov khoom siv kho vajtse - in {{1} {2} {2} {{{{voltage tej xwm txheej. Cov cuab yeej no tuaj yeem pab txheeb xyuas cov hlwb hlwb tsis muaj zog, txheeb xyuas cov lus teb BMS, thiab paub meej tias kev ua tau zoo.
4. Cov txiaj ntsig ntawm cov qes qis-} voltage tswj
Kev tsim nyog qis - kev tswj hluav taws xob muab cov txiaj ntsig tseem ceeb:
Txuas ntxiv roj teeb liftes:Txo kev sib sib zog nqus thiab tswj muaj peev xwm dhau sijhawm.
Txhim kho kev ua tau zoo:Tswj hwm qis sab hauv kev tiv thaiv thiab xa khoom ntiag tug.
Kev Nyab Xeeb Kev Nyab Xeeb:Tsawg tsawg qhov kev pheej hmoo ntawm cov kev sib tw luv luv lossis cov xwm txheej thermal.
QIB LUB TOME YUAV TSUM:Txo cov hloov chaw ua ntej yug los thiab txhim kho tus nqi - ua tau zoo.
Txhim khu kev qha ua tau:Saib xyuas cov cwj pwm voltage tau rau kev lag luam, kev lag luam, thiab cov neeg siv khoom siv.
5. Kev Siv Kev Sau Npe
Rau kev siv qis - voltage tswj, xav txog cov theem hauv qab no:
● Xyuas kom meej BMS txhawb kev tiv thaiv, ntsuas tes ntsuas, thiab ntsuas qhov tseeb ntawm cov kev ntsuas voltage.
● Teeb teeb kom tsim cov hluav taws xob tsawg kawg yog qhov ntsuas hluav taws xob rau cov hlwb thiab cov qauv.
Txwv Txwv tsis pub qhov tob tob txog kev tso tawm kom tswj tau cov tshuaj tiv thaiv hluav taws xob ntau.
Saib xyuas thiab tswj qhov ntsuas kub kom khaws cov hluav taws xob ruaj khov.
● Kev ua kev saib xyuas thiab kev sib npaug ntawm tes.
● Cov roj teeb ntawm ib nrab ntawm ib nrab nqi nyob rau hauv kev kub ntxhov.
● Xeem BMS thiab pob ua haujlwm siv cov cuab yeej simulation.
●rig Taug Txoj Kev Voltage Sag thiab hloov cov modules qhia ntau dhau voltage poob lossis tsis txaus ntseeg.
