Hauv kev txhim kho thiab kev tsim kho hauv av photovoltaic fais fab nroj tsuag, kev tsim ua haujlwm tuaj yeem hu ua cov haujlwm tseem ceeb. Cov qauv tsim cuam tshuam rau kev tsim kho ntawm tag nrho photovoltaic fais fab nroj tsuag thiab ncaj qha txuas rau cov txiaj ntsig. Lub lim tiam dhau los, kuv tau tham txog kev kos duab dav dav thiab qee qhov teeb meem hauv kev tsim kho pej xeem uas yuav tsum tau them sai sai rau thaum lub sij hawm tsim kho ntawm photovoltaic fais fab nroj tsuag. Tom qab ntawd nyob rau hauv tus txheej txheem tsim, dab tsi yuav tsum tau them nyiaj mloog rau hauv qhov hluav taws xob? Hauv qab no yog ib qho kev ntsuam xyuas luv luv rau txhua tus.
1. Cov khoom xaiv
Raws li peb txhua tus paub, lub zog ceev ntawm lub hnub ci zog yog tsawg. Nyob rau hauv cov ntaub ntawv no, yuav ua li cas siv lub hnub ci zog kom zoo yog ib qho tseem ceeb heev. Tam sim no, qhov kev ua tau zoo ntawm cov qauv xav tau los ntawm National Leader Program yog tsis muaj tsawg dua 16.5 feem pua rau polycrystalline silicon modules thiab tsis pub tsawg dua 17 feem pua rau monocrystalline silicon modules. Nyob rau hauv cov nqe lus ntawm module conversion efficiency, monocrystalline silicon modules yog zoo dua li polycrystalline silicon modules. Txawm li cas los xij, txij li tus nqi ntawm monocrystalline silicon cell modules yog me ntsis siab dua li ntawm polycrystalline silicon modules, nws tsis pom zoo kom xaiv cov modules dig muag raws li tus nqi ib leeg thaum xaiv cov modules. Nws yog ib qho tsim nyog los ua cov kev tshawb fawb thiab kev lag luam hauv ntau yam xws li kev tsim hluav taws xob suav thiab kev xaiv thiab cov nyiaj tau los rau cov khoom sib txawv, thiab xaiv cov roj teeb uas tsim nyog.
2. Inverter xaiv
Tam sim no, inverters tau muab faib ua ob hom: hlua inverters thiab centralized inverters.
1. Txoj hlua inverter
Cov hlua inverters feem ntau yog siv nyob rau hauv roob photovoltaic lub zog tsim hluav taws xob, me me thiab nruab nrab lub ru tsev photovoltaic lub zog tsim hluav taws xob, thiab cov chaw siv hluav taws xob me me. Lub zog yog tsawg dua 50 kW. Nyob rau hauv lub tswv yim tsim ntawm txoj hlua inverter, DC lub zog tsim los ntawm photovoltaic modules ncaj qha mus rau txoj hlua inverter, hloov mus rau hauv AC lub zog, thiab tom qab ntawd boosted los ntawm confluence.
Lub ntsiab zoo ntawm cov hlua inverter yog:
①Nws tsis cuam tshuam los ntawm qhov sib txawv ntawm qhov sib txawv ntawm cov hlua thiab cov duab ntxoov ntxoo, thiab tib lub sijhawm txo qhov tsis sib haum xeeb ntawm qhov chaw ua haujlwm zoo tshaj plaws ntawm photovoltaic cell modules thiab inverter, thiab ua kom lub zog loj;
② Lub MPPT qhov hluav taws xob ntau yog qhov dav, thiab cov khoom siv tau yooj yim dua;
③ Me me thiab yooj yim installation.
Lub ntsiab tsis zoo ntawm txoj hlua inverter yog:
① Cov hluav taws xob tshem tawm ntawm lub tshuab hluav taws xob yog me me, uas tsis haum rau thaj chaw siab siab;
② Kev teeb tsa sab nraum zoov, cua thiab tshav ntuj tuaj yeem ua rau kev laus ntawm lub casing thiab lub dab dej kub.
③ Tus naj npawb ntawm cov inverters yog loj, tag nrho cov tsis ua hauj lwm tus nqi yuav nce, thiab lub system xyuas yuav nyuaj.
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2. Centralized inverter
Centralized inverters feem ntau yog siv nyob rau hauv loj-scale fais fab nroj tsuag nrog niaj hnub hnub ci, suab puam fais fab nroj tsuag thiab lwm yam loj-scale fais fab tuag systems. Lub zog tag nrho ntawm lub cev yog qhov loj, feem ntau siab dua qib megawatt. Cov khoom siv fais fab yog nruab nrab ntawm 50kW thiab 630kW. Hauv kev tsim ntawm centralized inverter, DC lub zog tsim los ntawm photovoltaic modules, tom qab ua ke los ntawm DC combiner lub thawv, txuas nrog lub inverter, hloov mus rau AC zog, thiab tom qab ntawd boosted.
Lub ntsiab zoo ntawm centralized inverters yog:
① Tus naj npawb ntawm inverters siv nyob rau hauv qhov project tsim yog me me, uas yog yooj yim los tswj;
② Hais txog kev ua haujlwm ntawm inverter, cov ntsiab lus sib haum xeeb tsawg, ntau yam kev tiv thaiv ua tiav, thiab kev nyab xeeb ntawm lub chaw nres tsheb fais fab yog siab;
③Nws muaj lub zog hloov pauv muaj nuj nqi thiab tsis tshua muaj hluav taws xob caij-los ntawm kev ua haujlwm, thiab daim phiaj hluav taws xob muaj kev tswj hwm zoo.
Lub ntsiab tsis zoo ntawm centralized inverters yog:
① MPPT qhov hluav taws xob ntau ntawm lub hauv nruab nrab inverter yog nqaim, thiab kev ua haujlwm ntawm txhua yam tsis tuaj yeem saib xyuas, yog li nws tsis tuaj yeem ua rau txhua yam hauv qhov chaw ua haujlwm zoo tshaj plaws, thiab cov khoom sib txuas tsis hloov pauv.
② Lub centralized inverter nyob thaj tsam loj thiab tsis hloov pauv hauv kev teeb tsa.
③ Kev saib xyuas qhov system yog qhov nyuaj vim nws tus kheej siv hluav taws xob thiab siv hluav taws xob rau qhov cua thiab cua sov dissipation hauv chav tsev khoom.
Thaum xaiv ib qho inverter, nws yog ib qho tsim nyog yuav tau xaiv lub inverter tsim nyog raws li ntau yam xws li struts thiab qhov siab ntawm qhov project. Piv txwv li, hauv kev tsim cov chaw nres tsheb loj hauv av hauv cov suab puam siab hauv Qinghai, feem ntau xaiv cov inverters centralized; nyob rau hauv roob photovoltaic fais fab chaw nres tsheb, vim qhov sib txawv ntawm qhov sib txawv ntawm cov khoom siv arrays thiab cov txheej txheem sib cais ntawm cov khoom, cov hlua inverters tuaj yeem xaiv. Thiab siv ntau-channel MPPT rau kev taug qab los ua kom lub zog loj tshaj plaws.
3. Tsim cov khoom siv hluav taws xob
Rau cov khoom siv hluav taws xob tsim hluav taws xob photovoltaic chaw nres tsheb, rau cov cheeb tsam nrog cov av tuab tuab uas tuaj yeem khawb tau, cov kab hluav taws xob ncaj qha faus yog feem ntau tau txais, uas kuj yog cov kev daws teeb meem zoo tshaj plaws; Yog hais tias qhov saum npoo yog pob zeb thiab tsis tuaj yeem khawb tau, lub cable raws tus Choj nteg cov phiaj xwm. Rau qhov nyuaj hauv av, kev hloov pauv loj, lossis cov txheej txheem tawg ntawm photovoltaic arrays, kev teeb tsa nyiaj siv ua haujlwm feem ntau tau txais los ntawm cov yees. Nyob rau hauv cov txheej txheem tsim ntawm cov kab sib sau, nws yog ib qho tsim nyog yuav tsum xaiv cov qauv tsim kev lag luam thiab tsim nyog raws li cov ncauj lus kom ntxaws topographical mapping thiab topography ntawm qhov chaw tsim kho ntawm qhov chaw nres tsheb fais fab, kom tsis txhob muaj teeb meem kev tsim kho ntau li ntau tau.
4. Kev tsim kho av
Nyob rau hauv lub grounding tsim ntawm lub photovoltaic fais fab chaw nres tsheb, nyob rau hauv tas li ntawd mus xam lub grounding kuj raws li cov resistivity muab los ntawm lub geological soj ntsuam chav tsev, geological tej yam kev mob xws li cov av nyob rau hauv lub zos corrosion yuav tsum tau txiav txim siab. Grounding khoom nrog muaj zog corrosion kuj. Yog tias qhov ntsuas av tiv thaiv tsis tau raws li cov kev cai tshwj xeeb, kev ntsuas kev lag luam yuav tsum raug xaiv raws li qhov project.