Thaum nws los txog rau photovoltaic off-grid systems, photovoltaic off-grid systems yog tsim los ntawm cov khoom, hnub ci controllers / inverters, roj teeb pob, loads, thiab lwm yam. teb, yuav luag txhua qhov chaw, daim ntawv thov ntawm photovoltaic off-grid system yog me me rau lub hwj chim bank, txoj kev teeb, mus rau aerospace, tsheb thauj mus los thiab lwm yam. Siv peb lub neej niaj hnub ua piv txwv, lub hnub ci txoj kev teeb pom kev ntawm txoj kev yog ib qho me me off-grid system uas tsim hluav taws xob los ntawm photovoltaics thaum nruab hnub, thiab lub roj teeb khaws cov hluav taws xob uas tsim los ntawm photovoltaic panels thaum nruab hnub, thiab siv hluav taws xob. khaws cia los ntawm lub roj teeb kom pom kev tsaus ntuj.
Rau cov roj teeb nyob rau hauv lub off-grid system, muaj ob peb ntawm lawv: qhov tseem ceeb tshaj plaws, kim tshaj plaws, thiab yooj yim tshaj puas. Off-grid systems tsis txuas nrog daim phiaj, yog li cov roj teeb yuav tsum tau khaws cia hluav taws xob. Lawm, roj teeb yog qhov tseem ceeb tshaj plaws ntawm lub cev. Tam sim no, cov roj teeb muaj xws li cov roj ntsha lead-acid thiab lithium roj teeb, uas nyob 30 feem pua -50 feem pua ntawm cov nqi hluav taws xob tsim hluav taws xob hauv cov kab hluav taws xob off-grid. Yog lawm, kev pabcuam lub neej ntawm cov roj teeb ib txwm raug thuam, uas tseem yog ib qho kev cuam tshuam loj hauv kev lag luam tam sim no. Los ntawm qhov kev xav ntawm cov roj teeb uas siv nyob rau hauv off-grid systems nyob rau hauv kev ua lag luam, lead-acid roj teeb feem ntau nyob ib ncig ntawm 3 xyoo, thiab lithium roj teeb muaj lifespan ntawm 6 los yog 7 xyoo. Nrog rau qhov tshwm sim ntawm high-efficiency roj teeb technology, lub neej yuav ntev dua.
Lub photovoltaic grid-connected system yog tsim los ntawm cov khoom, kab sib txuas-sib txuas inverters, brackets thiab lwm yam khoom siv hauv lub cev. Txij li cov kab sib txuas-kev sib txuas yuav tsum tau txuas nrog kab sib chaws, nws yuav tsum tau nruab nrog ob-txoj kev ntsuas. Cov hluav taws xob tsim los ntawm kab hluav taws xob sib txuas yog hloov tam sim no, uas tuaj yeem siv ncaj qha rau hauv tsev neeg. load, tshaj hluav taws xob kuj tuaj yeem muag rau hauv daim phiaj.
Nws tsis yog qhov nyuaj kom pom tias txawm tias nws yog ib qho kev sib txuas ntawm kab sib chaws lossis kab sib txuas, muaj cov khoom tseem ceeb thiab cov inverters. Tab sis dab tsi yog qhov txawv ntawm ib tug off-grid inverter thiab ib daim phiaj-tied inverter?
Feem ntau saib cov ntsiab lus hauv qab no: muaj pes tsawg leeg, nqi, efficiency.
Saib ntawm cov qauv ua ntej, daim phiaj-txuas inverters feem ntau muaj ob-theem qauv ntawm boost thiab inverter, thaum off-grid inverters feem ntau muaj plaub-theem qauv, nrog rau cov maub los, boost, inverter, thiab kev sib cais.
Saib ntawm tus nqi, tus nqi ntawm off-grid inverters yog kwv yees li ob npaug ntawm daim phiaj-txuas inverters. Off-grid system inverter nws tus nqi siab. Feem ntau nyob ntawm lub peev xwm overload yog qhov taw qhia nyuaj. Cov zis tawm ntawm qhov off-grid inverter yog txuas nrog lub load, thiab ntau qhov loads yog inductive loads. Lub zog pib yog 3-5 npaug ntawm lub zog ntsuas, thiab lub peev xwm overload muaj zog. Qhov no yuav tsum muaj lub zog ntau dua thiab zoo ntawm cov khoom siv, thiab cov nqi ntuj yog kim dua. . Lub photovoltaic daim phiaj-txuas inverter yog txuas nrog cov khoom nyob rau hauv pem hauv ntej kawg, thiab cov zis nyob rau tom qab kawg yog txuas nrog rau daim phiaj, uas yog txawv.
Qhov thib peb yog efficiency. Rau tib lub zog, lub peev xwm dhau ntawm cov kab hluav taws xob tawm hluav taws xob yog ntau dua 30 feem pua siab dua li cov kab sib txuas sib txuas.