Vim muaj ntau haiv neeg ntawm vaj tse, nws yuav inevitably ua rau muaj ntau haiv neeg ntawm solar vaj huam sib luag installation. Txhawm rau ua kom muaj txiaj ntsig zoo tshaj plaws ntawm kev hloov pauv ntawm lub hnub ci zog thaum coj mus rau hauv tus account qhov zoo nkauj ntawm lub tsev, qhov no yuav tsum muaj kev sib txawv ntawm peb cov inverters kom ua tiav txoj hauv kev zoo tshaj plaws ntawm lub hnub ci zog. Kev hloov dua siab tshiab. Lub hnub ci inverter ntau tshaj plaws nyob rau hauv lub ntiaj teb no yog: centralized inverters, hlua inverters, multi-string inverters thiab tivthaiv inverters. Tam sim no peb yuav txheeb xyuas cov ntawv thov ntawm ntau lub inverter.
Centralized inverters feem ntau yog siv nyob rau hauv cov tshuab nrog loj photovoltaic fais fab chaw nres tsheb (》10kW). Ntau cov hlua photovoltaic txuas nrog rau DC cov tswv yim ntawm tib lub hauv nruab nrab inverter. Feem ntau, peb-theem IGBT fais fab modules yog siv rau lub zog siab. Lub zog qis siv cov khoom siv hluav taws xob hauv teb thiab DSP hloov pauv hloov pauv los txhim kho qhov zoo ntawm cov hluav taws xob tsim hluav taws xob, ua rau nws nyob ze rau sine yoj tam sim no. Qhov loj tshaj feature yog lub zog siab thiab tus nqi qis ntawm qhov system. Txawm li cas los xij, nws raug cuam tshuam los ntawm kev sib piv ntawm cov hlua photovoltaic thiab ib nrab shading, uas ua rau muaj kev ua tau zoo thiab lub zog muaj peev xwm ntawm tag nrho photovoltaic system. Nyob rau tib lub sijhawm, lub zog tsim kev ntseeg tau ntawm tag nrho cov txheej txheem photovoltaic cuam tshuam los ntawm kev ua haujlwm tsis zoo ntawm pawg photovoltaic unit. Qhov kev tshawb fawb tshiab tshaj plaws yog kev siv qhov chaw vector modulation tswj thiab kev txhim kho ntawm cov tshiab inverter topology kev sib txuas kom tau txais kev ua haujlwm siab nyob rau hauv ib nrab ntawm cov xwm txheej.
Ntawm SolarMax centralized inverter, koj tuaj yeem txuas lub thawv photovoltaic array interface los saib xyuas txhua txoj hlua photovoltaic windsurfing. Yog tias ib qho ntawm cov hlua tsis ua haujlwm zoo, lub kaw lus yuav xa cov ntaub ntawv no mus rau lub chaw taws teeb tswj tib lub sijhawm, txoj hlua no tuaj yeem nres los ntawm kev tswj chaw taws teeb, kom qhov tsis ua haujlwm ntawm ib txoj hlua ntawm cov hlua photovoltaic yuav tsis txo thiab cuam tshuam rau cov hlua. ua hauj lwm thiab lub zog tso zis ntawm tag nrho cov photovoltaic system.
Txoj hlua inverters tau dhau los ua qhov nrov tshaj plaws inverters hauv kev lag luam thoob ntiaj teb. Txoj hlua inverter yog raws li lub tswv yim modular. Txhua txoj hlua photovoltaic (1kW-5kW) dhau los ntawm lub inverter, muaj lub zog siab tshaj plaws taug qab ntawm DC kawg, thiab txuas nrog rau qhov sib npaug ntawm AC kawg. Ntau qhov loj photovoltaic fais fab nroj tsuag siv hlua inverters. Qhov zoo dua yog tias nws tsis cuam tshuam los ntawm qhov sib txawv ntawm qhov module thiab cov duab ntxoov ntxoo ntawm cov hlua, thiab tib lub sij hawm txo qhov pom kev ua haujlwm ntawm photovoltaic modules.
Tsis sib haum nrog lub inverter, yog li ua kom lub zog tsim hluav taws xob. Cov kev zoo no tsis tsuas yog txo tus nqi ntawm lub system, tab sis kuj nce kev ntseeg siab ntawm lub system. Nyob rau tib lub sijhawm, lub tswv yim ntawm "tus tswv- qhev" tau qhia ntawm cov hlua, yog li thaum ib txoj hlua hluav taws xob tsis tuaj yeem ua rau ib qho kev hloov pauv hauv lub cev, ntau pawg ntawm cov hlua photovoltaic txuas ua ke, thiab ib qho los yog ob peb ntawm lawv tuaj yeem ua haujlwm. , Yog li yuav tsim hluav taws xob ntau. Lub tswv yim tshiab tshaj plaws yog tias ob peb lub inverters tsim "pab pawg" los hloov "tus tswv- qhev" lub tswv yim, uas ua rau kev ntseeg siab ntawm qhov system ib kauj ruam ntxiv. Tam sim no, transformerless hlua inverters tau ua tus thawj coj.
Multi-string inverter siv qhov zoo ntawm centralized inverter thiab hlua inverter, zam nws qhov tsis txaus, thiab tuaj yeem siv rau photovoltaic fais fab noj ntawm ob peb kilowatts. Nyob rau hauv lub multi-txheej inverter, sib txawv ib tug neeg lub hwj chim ncov mus txog qhovtwg thiab DC-rau-DC converters yog suav nrog. Cov DCs no tau hloov mus rau hauv AC lub zog los ntawm ib qho zoo tib yam DC-rau-AC inverter thiab txuas nrog daim phiaj. Cov nqi sib txawv ntawm cov hlua hluav taws xob photovoltaic (xws li: lub zog sib txawv, cov khoom sib txawv ntawm txhua txoj hlua, cov tuam txhab sib txawv ntawm cov khoom sib txawv, thiab lwm yam), photovoltaic modules ntawm ntau qhov sib txawv lossis cov thev naus laus zis sib txawv, thiab cov hlua ntawm cov lus qhia sib txawv (xws li : Sab Hnub Tuaj, Sab Qab Teb thiab Sab Hnub Poob), qhov sib txawv inclination lub kaum sab xis lossis duab ntxoov ntxoo, tuaj yeem txuas nrog ib qho inverter, thiab txhua txoj hlua ua haujlwm ntawm lawv lub zog siab tshaj plaws.
Nyob rau tib lub sijhawm, qhov ntev ntawm DC cable raug txo qis, cov duab ntxoov ntxoo ntawm cov hlua thiab qhov poob los ntawm qhov sib txawv ntawm cov hlua yuav raug txo kom tsawg.
Cov tivthaiv inverter yog txuas rau txhua qhov photovoltaic tivthaiv rau ib qho inverter, thiab txhua qhov kev tivthaiv muaj qhov sib cais siab tshaj plaws ntawm lub zog siab tshaj plaws, kom cov tivthaiv thiab cov inverter zoo sib xws. Feem ntau siv nyob rau hauv 50W mus rau 400W photovoltaic fais fab nroj tsuag, tag nrho efficiency yog qis dua txoj hlua inverters. Txij li thaum nws txuas nrog nyob rau hauv parallel ntawm AC, qhov no ua rau kom qhov nyuaj ntawm cov xaim ntawm AC sab thiab nyuaj rau kev tswj xyuas. Lwm qhov teeb meem uas yuav tsum tau daws yog yuav ua li cas txuas rau kab sib chaws zoo dua. Txoj kev yooj yim yog txuas ncaj qha mus rau daim phiaj los ntawm lub qhov (socket) AC zoo tib yam, uas tuaj yeem txo tus nqi thiab kev teeb tsa, tab sis feem ntau cov qauv kev nyab xeeb ntawm daim phiaj yuav tsis tso cai. Ua li no, lub tuam txhab hluav taws xob tuaj yeem tawm tsam cov cuab yeej tsim hluav taws xob uas txuas ncaj qha mus rau cov khoom siv hluav taws xob ntawm cov neeg siv hauv tsev. Lwm qhov cuam tshuam txog kev nyab xeeb yog seb puas yuav tsum tau hloov pauv hloov pauv (siab zaus lossis tsawg zaus) yuav tsum tau tso cai, lossis tsis muaj kev hloov pauv hloov pauv. Qhov noinverteryog feem ntau dav siv nyob rau hauv iav kab hlau rhuav phab ntsa.
Post lub sij hawm: Oct-29-2021
