1. Xaiv hom roj teeb
Nrog rau kev txhim kho cov roj teeb thev naus laus zis thiab cov nqi poob qis sai, cov roj teeb lithium tau dhau los ua qhov kev xaiv tseem ceeb hauv cov phiaj xwm kev cia khoom hauv tsev vim lawv qhov zoo xws li kev ua haujlwm siab, lub neej ntev, cov ntaub ntawv roj teeb raug, thiab siab sib xws.
2. Plaub qhov kev nkag siab tsis zoo hauv lub roj teeb muaj peev xwm tsim
1. Xaiv lub peev xwm roj teeb nkaus xwb raws li lub zog thauj khoom thiab kev siv hluav taws xob
Hauv kev tsim lub peev xwm roj teeb, qhov xwm txheej thauj khoom yog qhov tseem ceeb tshaj plaws siv tau. Txawm li cas los xij, lub peev xwm them thiab tso tawm ntawm lub roj teeb, lub zog siab tshaj plaws ntawm lub zog cia tshuab, thiab lub sijhawm siv hluav taws xob ntawm lub load tsis tuaj yeem tsis quav ntsej.
2. Theoretical muaj peev xwm thiab lub peev xwm tiag tiag ntawm lub roj teeb
Feem ntau, dab tsi yog cim rau ntawm phau ntawv roj teeb yog lub peev xwm theoretical ntawm lub roj teeb, uas yog lub zog siab tshaj plaws uas lub roj teeb tuaj yeem tso tawm thaum lub roj teeb mus ntawm SOC100% mus rau SOC0% nyob rau hauv cov xwm txheej zoo tagnrho.
Hauv cov ntawv thov tiag tiag, xav txog roj teeb lub neej, nws feem ntau tsis tso cai tawm mus rau SOC0%, thiab qib kev tiv thaiv yuav raug teeb tsa.
3. Lub roj teeb muaj peev xwm loj dua, qhov zoo dua.
Xav txog kev siv roj teeb thaum siv. Yog tias lub peev xwm ntawm lub tshuab hluav taws xob photovoltaic me me, lossis lub zog siv hluav taws xob tsawg, lub roj teeb tsis tuaj yeem them tag nrho, ua rau cov khoom pov tseg.
4. Roj teeb muaj peev xwm tsim tau zoo sib xws
Vim tias cov txheej txheem poob, lub roj teeb tawm muaj peev xwm tsawg dua li lub peev xwm ntawm lub roj teeb, thiab lub zog siv hluav taws xob tsawg dua li lub roj teeb tso tawm. Tsis quav ntsej txog kev ua haujlwm tsis zoo yuav ua rau lub roj teeb tsis txaus.
3. Roj teeb muaj peev xwm tsim nyob rau hauv ntau daim ntawv thov scenarios
Daim ntawv no feem ntau qhia txog lub roj teeb muaj peev xwm tsim cov tswv yim hauv peb qhov kev siv ntau yam: kev siv tus kheej (cov nqi hluav taws xob siab lossis tsis muaj nyiaj pab), cov nqi hluav taws xob siab thiab lub hav, thiab cov khoom siv hluav taws xob rov qab (daim phiaj hluav taws xob tsis ruaj khov lossis muaj cov khoom tseem ceeb).
1. "Spontaneous personal use"
Vim yog cov nqi hluav taws xob siab lossis cov nqi hluav taws xob txuas nrog photovoltaic qis (tsis muaj nyiaj pab), cov tshuab hluav taws xob photovoltaic tau teeb tsa los txo cov nqi hluav taws xob.
Piv txwv tias daim phiaj hluav taws xob ruaj khov thiab kev lag luam tawm tsis tau txiav txim siab, photovoltaics tsuas yog siv los txo cov hluav taws xob siv hluav taws xob, thiab feem ntau muaj lub teeb txaus thaum nruab hnub.
Qhov xwm txheej zoo tshaj plaws yog qhov photovoltaic + lub zog cia qhov system tuaj yeem npog tag nrho tsev neeg siv hluav taws xob. Tab sis qhov xwm txheej no nyuaj rau ua tiav. Yog li ntawd, peb ua tib zoo xav txog tus nqi nkag thiab kev siv hluav taws xob, thiab tuaj yeem xaiv lub peev xwm roj teeb raws li qhov nruab nrab txhua hnub siv hluav taws xob (kWh) ntawm tsev neeg (lub neej ntawd photovoltaic system muaj lub zog txaus). Lub logic tsim yog raws li nram no:
Yog tias cov qauv siv hluav taws xob tuaj yeem raug sau thiab ua ke nrog lub zog cia tshuab tswj kev teeb tsa, kev siv lub cev tuaj yeem ua kom tiav.
2. Peak thiab hav nqes hluav taws xob
Tus qauv ntawm lub ncov thiab hav hluav taws xob tus nqi yog kwv yees li 17:00-22:00, uas yog lub sijhawm siab tshaj ntawm kev siv hluav taws xob:
Kev siv hluav taws xob tsawg thaum nruab hnub (photovoltaic systems tuaj yeem npog nws). Thaum lub sij hawm siab tshaj plaws ntawm kev siv hluav taws xob, nws yog ib qho tsim nyog los xyuas kom meej tias tsawg kawg ib nrab ntawm cov hluav taws xob yog siv los ntawm cov roj teeb kom txo tau cov nqi hluav taws xob.
Piv txwv li qhov nruab nrab txhua hnub siv hluav taws xob thaum lub sij hawm siab tshaj: 20kWh
Nws cov tswv yim tsim yog raws li nram no:
Qhov siab tshaj plaws tus nqi ntawm cov roj teeb muaj peev xwm yog xam raws li tag nrho cov hwj huam noj thaum lub sij hawm ncov. Tom qab ntawd nrhiav qhov zoo tshaj plaws roj teeb muaj peev xwm nyob rau hauv no ntau yam raws li lub peev xwm ntawm lub photovoltaic system thiab rov qab los ntawm peev.
3. Cov cheeb tsam uas tsis ruaj tsis khov - cov khoom siv hluav taws xob thaub qab
Nws yog tsuas yog siv nyob rau hauv cov cheeb tsam uas tsis ruaj tsis khov daim phiaj hluav taws xob lossis cov xwm txheej nrog cov khoom tseem ceeb.
Piv txwv li: Daim ntawv thov site: Kwv yees li ntawm 5-8KW Cheebtsam tuaj yeem ntsia tau
Ib qho tseem ceeb load: 4 * qhov cua kiv cua, lub zog ntawm ib tus kiv cua yog 550W
Qhov teeb meem ntawm daim phiaj hluav taws xob: Daim phiaj hluav taws xob tsis ruaj khov thiab hluav taws xob tshwm sim ib ntus. Lub zog hluav taws xob ntev tshaj plaws yog 3 mus rau 4 teev.
Daim ntawv thov yuav tsum tau: Thaum daim phiaj hluav taws xob zoo li qub, lub roj teeb raug them ua ntej; thaum lub hwj chim daim phiaj tsis ua haujlwm, lub roj teeb + photovoltaic ua kom lub cev ua haujlwm ntawm cov khoom tseem ceeb (ntxuam).
Thaum xaiv lub roj teeb muaj peev xwm, qhov yuav tsum tau xav txog yog lub zog xav tau los ntawm lub roj teeb uas yuav tsum tau muab los ntawm ib leeg hauv qhov xwm txheej sab nraud (piv txwv li hluav taws xob hluav taws xob thaum hmo ntuj thiab tsis muaj PV).
Ntawm lawv, tag nrho cov kev siv hluav taws xob thaum off-grid thiab kwv yees lub sijhawm off-grid yog qhov tseem ceeb tshaj plaws. Muab xam raws li qhov xav tau ntev tshaj plaws hluav taws xob hluav taws xob lub sijhawm ntawm 4 teev, tus qauv tsim tuaj yeem xa mus rau:
4. Ob yam tseem ceeb hauv kev tsim lub peev xwm roj teeb
1. Photovoltaic system muaj peev xwm
Nco ntsoov tias cov roj teeb tag nrho yog them los ntawm photovoltaics, lub zog siab tshaj plaws ntawm lub zog cia lub tshuab rau kev them cov roj teeb yog 5000W, thiab cov hnub ci teev nyob rau ib hnub yog 4h.
Yog li:
① Thaum lub roj teeb siv los ua lub zog thaub qab, qhov nruab nrab yuav tsum tau them tag nrho lub roj teeb nrog lub peev xwm zoo ntawm 800Ah raws li qhov zoo tshaj plaws yog:
800Ah/100A/4h=2 hnub
2. Roj teeb redundancy tsim
Vim qhov kev ua tau zoo los ntawm kev tsis ruaj khov, kab poob, tsis muaj txiaj ntsig, roj teeb laus, thiab lwm yam hauv kev tsim hluav taws xob photovoltaic, qee qhov npoo yuav tsum tau tshwj tseg thaum tsim lub peev xwm roj teeb.
Kev tsim cov roj teeb uas muaj peev xwm yog qhov tsis pub dawb thiab tuaj yeem txiav txim siab raws li qhov tseeb ntawm koj tus kheej tsim qauv.