Raws li lub ntiaj teb xav tau rau lub zog txuas ntxiv ntxiv, hnub ci zog tau ua ib qho ntawm cov khoom siv hluav taws xob huv si thiab tau siv dav hauv tsev, kev lag luam thiab kev lag luam. Thaum lub tsev thiab txhim kho lub hnub ci photoovoltaic (PV system), xaiv cov hlau hluav taws xob zoo thiab kev ua haujlwm zoo ntawm cov kab ke. Qhov hluav taws xob ntau ntawm PV system feem ntau yog nyob ntawm qhov loj me, tsim qauv thiab cov ntawv sau npe ntawm cov kab ke. Kab lus no yuav tshawb txog cov kev nthuav dav ntawm PV tshuab
1. Cov ntsiab lus ntawm cov hluav taws xob voltage ntawm PV tshuab
Qhov hluav taws xob ntawm PV system yog hais txog lub voltage kis los ntawm cov panels niaj hnub (PV modules) rau cov inverters, faib cov cam. Thaum xaiv PVab cab cable thiab xov hlau, nws yog ib qho tseem ceeb kom nkag siab cov kev xav tau thiab kev siv ntawm voltage ntau ntau. Hnub ci PV Tshuab Feem ntau siv peb qib voltage nram no:
Tsawg heev voltage system (12v - 48 v)
Cov Hluav Taws Xob Nruab Nrab Nruab Nrab (60v {1}} v)
High Voltage System (1000V - 1500 v)
Txhua qhov hluav taws xob sib raug rau cov nplai sib txawv ntawm cov kev siv hnub ci, los ntawm cov tshuab hluav taws xob kom loj tsim thiab kev teeb tsa hluav taws xob sib txawv.
2. Tsawg-volfageTshuab photovoltaic (12V - 48V)
Tsawg-voltage Systems feem ntau yog siv rau cov nruab hnub ci hnub ci, tshwj xeeb tshaj yog nyob rau hauv cov tsev thiab chaw deb. Qhov hluav taws xob ntawm cov kab ke no feem ntau yog 12V, 24V lossis 48v, thiab cov cuab yeej siv hluav taws xob me me xws li cov roj teeb me me xws li cov roj teeb me me thiab DC thauj khoom me.
2.1 cov yam ntxwv ntawm cov khoom siv hluav taws xob tsawg
Daim ntawv thov tau txais:Tsawg-voltage photovoltaic tau siv dav hauv tsev teeb pom kev zoo, tawm-daim txiag fais fab khoom siv, cov khoom siv hluav taws xob me me lossis cov ntawv thov them.
Roj teeb thiab thauj khoom:Tsawg-voltage Systems feem ntau yog nruab nrog 12V lossis 24V los yog 24V cov roj teeb-acid (lossis lwm yam khoom siv cia) thiab muaj ib qho chaw ntim khoom me me.
Xaiv:12V cov tshuab feem ntau yog siv rau cov khoom me me thiab cov khoom siv hluav taws xob muaj xwm ceev, thiab 248V system tau siv rau cov ntawv thov uas xav tau lub zog loj dua.
2.2 CABLE YUAV TSUM TAU RAU TSIM-Voltage Photovaic Tshuab
Txawm hais tias qhov voltage ntawm tsawg-voltage tshuab qis dua, nws tseem tsim nyog los xaiv lub hnub ci uas tsim nyog kom muaj kev nyab xeeb thiab ruaj khov. Feem ntau hais lus, xaiv ** Hnub ci Cable (Hnub ci cable) thiab cov kav hlau dolar) ** xav kom xav txog cov hauv qab no:
Cov Qauv Siv:Cov khoom siv cable sib txuas lus hauv cov khoom siv cable hauv qis-voltage yog tooj liab lossis txhuas. Tooj liab Cables muab ntau dua kev ua haujlwm tab sis yog tus nqi kim, thaum ua txhuas cables tau them tus nqi zoo.
Ntsuas voltage ntawm cables:Nws yog ib qho tseem ceeb heev los xaiv cov cables nrog cov qib voltage uas tsim nyog. Piv txwv li, 12v system yuav tsum muaj cov hluav taws xob ntau tsawg kawg yog 20% siab dua lub system voltage, thiab cov xaim hluav taws xob nyob rau 30v lossis siab dua raug xaiv.
Feem ntau cov hluav taws xob tsawg hluav taws xob system yog ntsuas ntawm 300v lossis 600v. Cov cable no feem ntau muaj cov UV zoo heev, kev tiv thaiv kev tiv thaiv thiab xeb tsis kam, thiab haum rau sab nraum zoov chaw.
3. Nruab nrab-hluav taws xobTshuab photovoltaic (60V - 600V)
Nruab nrab-voltage Systems feem ntau yog siv nyob rau hauv thaj chaw loj dua, ua lag luam thiab cov tshuab muaj cov ntaub ntawv me me. Hauv cov kab ke no, cov voltage ntawm lub hnub ci ci yog feem ntau ntawm 60v thiab 600v. Rau cov kab ke no, cov kev xav tau hluav taws xob ntau dua, cov ntaub pua tshwj xeeb yuav tsum tau xaiv kom ntseeg tau tias ua tau zoo thiab kev nyab xeeb ntawm kev sib kis tau zoo thiab kev nyab xeeb ntawm lub zog kis tau.
3.1 yam ntxwv ntawm nruab nrab voltage nruab
Daim ntawv thov tau txais:Nruab nrab cov tshuab hluav taws xob feem ntau siv nyob rau hauv thaj chaw robar hnub ci, photovoltaic hwj chim tsim kho lossis chaw ua si.
Seem System:Cov panels thiab inverters ntawm cov kab ke no feem ntau tiv thaiv kev ua haujlwm siab dua los txhim kho cov khoom sib kis tau zoo.
Inverter yuav tsum:Cov kab ke no feem ntau siv 600V inverters, uas yog qhov tsim nyog rau cov ntawv thov uas muaj lub zog DC hloov pauv mus rau AC Fais thiab kis mus rau daim phiaj.
3.2 yuav tsum muaj rau nruab nrab ntsuas hluav taws xob photovoltaic
Rau nruab nrab voltage systems, xaiv ntawm photovoltaic cables yog xav tau ntau tshaj li ntawm cov hluav taws xob tsis tshua muaj zog, feem ntau yog suav nrog cov hauv qab no:
Kev Ntsuas Ntsuas:Nws yog qhov tseem ceeb los xaiv qhov tsim nyog siv voltage tsim nyog siv voltage. Rau cov tshuab los ntawm 60v rau 600V, cov ntsuas hluav taws xob ntawm lub cable yog feem ntau 600V, 1000v lossis siab dua.
Kub Kuj:Vim yog lub siab ntsuas hluav taws xob, qhov kub ua rau ntawm cov cable yog qhov tshwj xeeb tshaj yog. Cov kab ke tsim nyog rau cov kab ke no feem ntau muaj qhov kub thiab txias ntawm -40 degree rau {{1} degree.
Cov ntaub pua plag sab nraud:Lub ntsej muag sab nraud ntawm lub cable yuav tsum tiv taus UV, tshuaj corrosion thiab kev laus, thiab feem ntau yog ua los ntawm cov polyethylene polyethylene (xlpe).
Cov kab ke photovoltaic feem ntau siv ob lub rwb thaiv tsev ob npaug kom ntseeg tau tias qhov kev kub ntxhov siab, yog li ua kom muaj kev nyab xeeb ntawm lub system.
4. High-voltage photovoltaic tshuab (1000V {3}} v)
High-voltage photovoltaic yog tsim nyog rau loj-nplai ua lag luam thiab muaj kev lag luam hnub ci nroj tsuag, tshwj xeeb tshaj yog hauv av-mounted photovoltaic arrays. Lub vaj huam sib luag solar pawg nyob rau hauv cov kab ke no feem ntau yog txuas rau hauv cov koob kom ua rau cov zis hluav taws xob kom tau raws li qhov kev sib kis tau zoo dua. Cov voltage ntau ntawm high-voltage nruab yog feem ntau 1000v rau 1500v.
4.1 cov yam ntxwv ntawm cov hluav taws xob high-voltage
Daim ntawv thov tau txais:High-voltage Systems yog dav siv nyob rau hauv loj-nplai siv nyob rau hauv loj hnub ci nroj tsuag, lag luam photovoltaic hwj chim ntau dua cov chaw siv hluav taws xob photopotai.
Vaj huam sib luag contriguration:Txhawm rau txhim kho cov kev kis cov hwj huam kev ua haujlwm tau zoo, cov kab ke no siv cov pawg ob lub hauv hluav taws xob loj (xws li 1000V lossis 1500v inverters).
Kev sib kis tau ntev ntev: Cov Hluav Taws Xob High-Cov Hluav Taws Xob Loj yog ntau dua nyob rau hauv kev mus ntev ntev thiab tuaj yeem txo cov phiaj xwm fais fab uas xav tau kev sib kis lub zog.
4.2 CABLE YUAV TSUM TAU RAU HIG-VALTAGE PHOTOVICIC TSHUAB
Rau high-voltage photovoltaic, tus tsim ntawm lub hnub ci clesles thiab xaim yuav tsum ua kom pom cov qauv nruj ua kom muaj kev nyab xeeb thiab ntev hauv cov kab ke. Lub ntsiab tseem ceeb yuav tsum muaj:
Kev Ntsuas Ntsuas:Rau cov tshuab photovoltaic nrog lub voltage ntau ntawm 1000V rau 1500v, cov ntsuas hluav taws xob ntawm lub cable yog feem ntau yog tiv thaiv tau qhov kev sib ntsuas ntawm cov kev sib tw siab no.
Cov kub ua hauj kub ua kom thiab corrosion resistance:Cables rau high-voltage Systems yuav tsum muaj cov cua kub muaj zog ua rau pom zoo vim tias cov kab corrosion vim tias cov kab mob, nag, cua thiab xuab zeb. Cov ntaub pua av sab nraud ntawm cov cable feem ntau yog ua los ntawm tus ntoo khaublig sib txuas (XLPE) lossis polyethylene tsis kam, ag Kuj, thiab tshuaj lom neeg tiv taus.
Muab ob npaug rwb thaiv tsev tsim:Txhawm rau kom muaj kev nyab xeeb kis tau ntawm cov high-voltage korres, cable feem ntau txais yuav ob lub rwb thaiv tsev ua kom ntseeg tau tias tam sim no yuav tsis muaj kev tiv thaiv kev nyab xeeb ntxiv.
5. Yuav ua li cas xaiv ib lub hnub ci tsim nyog?
Xaiv lub hnub ci tab sis tseem ceeb los ua kom tiav txoj haujlwm zoo ntawm koj PV system, tshwj xeeb tshaj yog txiav txim siab ntawm voltage sib txawv. Ntawm no yog ob peb yam tseem ceeb los txiav txim siab thaum xaiv lub hnub ci ntsa iab:
5.1 kev ntsuas hluav taws xob ntawm lub cable
Ua ntej, koj yuav tsum xaiv cov cable tsim nyog raws li cov kev ua haujlwm voltage ntawm koj PV system. Yog tias lub kaw lus hluav taws xob yog tsawg (xws li 12v lossis 48v), koj tuaj yeem xaiv lub cable haum rau kev voltage tsis tsim nyog; Yog tias lub kaw lus hluav taws xob voltage yog siab (xws li 600v lossis 1000V), koj yuav tsum xaiv lub cable uas tuaj yeem tiv thaiv ntau dua.
5.2 cov khoom siv cable
Cov khoom siv cov kev coj ua rau PV yog suav nrog tooj liab thiab txhuas. Lub tshuab tooj liab tau siv nyob rau hauv high-efficitic cov tshuab vim yog lawv txoj kev ua tau zoo, thaum lub zog sib zog dua thiab haum rau cov ntawv thov txo nqi.
5.3 Kub thiab UV Kuj
Txij li thaum PV tshuab feem ntau yog nruab sab nraum zoov, nws yog qhov tseem ceeb los xaiv cov cable uas tiv thaiv kom kub thiab UV rays. Lub txaws sab nraud ntawm cov cable yuav tsum siv cov ntaub ntawv UV-resistant (xws li nws cov-sib cav sib ceg) kom ntseeg tau tias nws tsis yooj yim, tawg hauv ib puag ncig kub.
5.4 Ntawv pov thawj kev nyab xeeb thiab cov qauv
Nco ntsoov xaiv cov cables uas tau raws li cov qauv kev nyab xeeb thoob ntiaj teb, xws li TÜV, UL, Etc. Cov ntawv pov thawj no tuaj yeem ua kom muaj kev nyab xeeb thiab ruaj khov ntawm cov kab ke ua haujlwm.