Lub photovoltaic grid-connected fais fab tuag system yog ib tug txheej txheem ntawm realizing lub hwj chim mov los ntawm lub hnub ci hlwb thiab daim phiaj-connected inverters. Lub tshuab hluav taws xob photovoltaic txuas txuas hluav taws xob tau siv dav hauv lub neej niaj hnub no. Lub teeb lub zog ntawm photovoltaic daim phiaj-kev sib txuas hluav taws xob tsim hluav taws xob hloov mus rau hauv hluav taws xob hluav taws xob. Ntau yam zoo thiab kev ua haujlwm tau txais kev txhawb nqa thiab kawm los ntawm cov kws tshaj lij thiab tsoomfwv hauv tebchaws. Peb cov kev tshawb fawb kev taw qhia kuj yog nyob ib ncig ntawm daim phiaj-tied inverters thiab photovoltaic hlwb. Lawv cov khoom siv kuj tau nrov heev hauv kev ua lag luam, thiab tam sim no cov khoom siv hluav taws xob hnub ci tau nrov rau cov neeg siv hauv tsev, yog li lawv tau piav qhia qee cov ntsiab lus thiab cov ntsiab lus.
1. Photovoltaic daim phiaj txuas hluav taws xob tsim hluav taws xob
1. Lub tshuab hluav taws xob photovoltaic txuas txuas hluav taws xob yog tias cov khoom siv hluav taws xob ncaj qha tsim los ntawm cov khoom siv hnub ci tau hloov mus rau hauv kev hloov tam sim no los ntawm daim phiaj-txuas inverter thiab tom qab ntawd txuas ncaj qha rau hauv daim phiaj hluav taws xob pej xeem. Cias muab, nws yog hloov los ntawm lub teeb lub zog mus rau hauv hluav taws xob lub zog rau cov neeg siv.
Vim tias lub zog hluav taws xob tuaj yeem nkag ncaj qha rau hauv daim phiaj, PV-kev ywj pheej system uas muaj nyob rau hauv tag nrho cov roj teeb yuav raug hloov los ntawm daim phiaj sib txuas, yog li tsis tas yuav nruab cov roj teeb, uas tuaj yeem txo cov nqi. Txawm li cas los xij, daim phiaj-txuas inverter xav tau los ntawm qhov system yuav tsum xyuas kom meej tias lub zog tuaj yeem ua tau raws li qhov zaus, zaus thiab lwm yam kev ua haujlwm ntawm daim phiaj.
Qhov zoo:
(1) Kev siv cov tsis muaj kuab paug, lub hnub ci hluav taws xob txuas ntxiv tuaj yeem txo qhov tsis tuaj yeem txuas ntxiv sai sai. Kev siv hluav taws xob nrog cov peev txheej tsawg, kev tso tawm ntawm lub tsev cog khoom gases thiab cov pa phem thaum tav su thaum siv, nyob rau hauv kev sib raug zoo nrog ecological ib puag ncig, yog los txhawb txoj kev loj hlob ntawm kev loj hlob!
(2) Lub zog hluav taws xob tsim hluav taws xob ncaj qha nkag mus rau hauv kab sib chaws los ntawm inverter, txuag lub roj teeb, uas tuaj yeem txo cov peev txheej tsim kho los ntawm 35 feem pua rau 45 feem pua piv rau lub photovoltaic ywj siab system, uas txo cov nqi ntau lawm. Nws tseem tuaj yeem tshem tawm lub roj teeb kom tsis txhob muaj kev ua qias tuaj ntawm lub roj teeb, thiab tuaj yeem ua rau kom lub neej kev pab cuam thiab lub sijhawm siv ib txwm muaj.
(3) Lub tsev tsim hluav taws xob photovoltaic kev tsim hluav taws xob sib xyaw ua ke, vim muaj kev nqis peev me me, kev tsim kho sai, hneev taw me me, cov ntsiab lus thev naus laus zis siab hauv lub tsev, thiab txhim kho lub tsev muag khoom.
(4) Kev tsim kho, kev tsim kho decentralized nyob ze ntawm ntau qhov chaw, ua kom yooj yim rau kev nkag mus rau hauv daim phiaj hluav taws xob, tsis yog tsuas yog ua tau zoo ntawm kev ua kom muaj peev xwm tiv thaiv kab mob thiab tiv thaiv kev puas tsuaj ntuj, tab sis kuj zoo ntawm kev sib npaug ntawm cov khoom siv hluav taws xob thiab txo qis. kab poob.
(5) Nws tuaj yeem ua lub luag haujlwm ntawm kev tswj hwm siab. Daim phiaj-txuas hnub ci photovoltaic system yog qhov khoom tseem ceeb thiab kev txhawb nqa ntawm ntau lub teb chaws tsim. Nws yog lub ntsiab txoj kev loj hlob ntawm lub hnub ci zog tsim system. Kev ua lag luam muaj peev xwm loj thiab qhov chaw loj hlob.
2. Daim phiaj-txuas inverter
Muaj kwv yees li hauv qab no hom kab sib txuas-txuas inverters:
(1) Centralized inverter
(2) Txoj hlua inverter
(3) Cov khoom siv inverter
Yog hais tias lub ntsiab circuits ntawm lub inverters saum toj no yog siv los ntawm kev tswj circuits, peb muaj peev xwm faib lawv mus rau hauv ob txoj kev tswj: square yoj thiab sine yoj.
Square yoj tso zis inverter: Feem ntau ntawm cov square yoj tso zis inverters siv mem tes dav modulation integrated circuits, xws li TL494. Qhov tseeb qhia tau hais tias kev siv SG3525 kev sib xyaw ua ke los siv lub zog FET raws li lub zog hloov pauv tuaj yeem ua tau raws li qhov xav tau ntawm kev ua haujlwm siab ntawm lub inverter, vim tias SG3525 muaj txiaj ntsig zoo hauv kev tsav lub zog FET thiab muaj cov ntaub ntawv sab hauv. thiab ua haujlwm amplifier. Thiab under-voltage tiv thaiv muaj nuj nqi, tag nrho cov txheeb ze peripheral circuits kuj yooj yim heev.
Inverter nrog sine yoj tso zis: Schematic daim duab ntawm sine yoj inverter, muaj qhov sib txawv ntawm square yoj tso zis thiab sine yoj tso zis. Lub inverter nrog square yoj tso zis muaj kev ua haujlwm siab, tab sis nws tsis haum rau cov khoom siv hluav taws xob tsim los rau sine yoj fais fab mov. Nws yog hais tias nws yog ib txwm tsis yooj yim rau siv. Txawm hais tias nws tuaj yeem siv rau ntau yam khoom siv hluav taws xob, qee cov khoom siv hluav taws xob tsis haum, lossis cov ntsuas ntawm cov khoom siv hluav taws xob yuav hloov. Lub inverter nrog sine yoj tso zis tsis muaj qhov tsis zoo no, tab sis nws muaj kev ua haujlwm tsawg. ua tsis tau.
Lub hauv paus ntsiab lus ntawm daim phiaj-txuas inverter: Peb hloov AC tam sim no mus rau DC tam sim no, uas yog rectification. Cov txheej txheem Circuit Court uas ua kom tiav qhov kev hloov kho no yog hu ua rectifier circuit. Cov txheej txheem realization ntawm tag nrho cov khoom siv hluav taws xob rectifier dhau los ua lub rectifier. Piv nrog rau nws, tam sim no uas tuaj yeem hloov DC tam sim no rau hauv AC yog qhov rov qab tam sim no. Lub voj voog uas ua tiav tag nrho cov haujlwm rov qab tam sim no yog hu ua inverter circuit. Cov txheej txheem realization ntawm tag nrho cov cuab yeej inverter yog hu ua inverter.
Muaj nuj nqi:
a. Tsis siv neeg hloov: Raws li kev ua haujlwm thiab lub sijhawm so ntawm lub hnub, kev ua haujlwm ntawm lub tshuab hloov pauv tsis siv neeg tau paub.
b. Qhov siab tshaj plaws lub zog taw tes nrhiav kev tswj: Thaum qhov kub thiab txias ntawm photovoltaic modules thiab kub ntawm lub hnub ci hluav taws xob hloov, qhov voltage thiab tam sim no generated los ntawm photovoltaic modules kuj hloov, thiab nws muaj peev xwm taug qab cov kev hloov no los xyuas kom meej lub zog tso zis ntau tshaj.
c. Tiv thaiv cov nyhuv ntawm cov Islands tuaj: Kev tshawb nrhiav Passive tuaj yeem txiav txim siab seb puas muaj kev cuam tshuam los ntawm kev kuaj xyuas cov kab hluav taws xob, kev tshawb pom muaj txiaj ntsig zoo los ntawm kev qhia txog kev cuam tshuam me me-amplitude, thiab siv cov txiaj ntsig sib txuas los txiav txim seb puas muaj Islanding tshwm sim. Nws yog los ntawm kev sib xyaw ua ke ntawm kev tshawb nrhiav passive thiab kev tshawb nrhiav kom pom tias cov nyhuv ntawm kev tiv thaiv kev tiv thaiv tuaj yeem tswj tau.
d. Tsis siv neeg kho qhov voltage. Thaum cov tam sim no ntau dhau rov qab mus rau hauv kab sib chaws, qhov hluav taws xob ntawm qhov kis tau tus mob nce vim qhov rov qab xa hluav taws xob, uas tuaj yeem tshaj qhov kev ua haujlwm ntawm qhov hluav taws xob. Yuav kom tswj tau qhov kev ua haujlwm zoo ntawm daim phiaj, daim phiaj-txuas inverter yuav tsum tuaj yeem tiv thaiv qhov hluav taws xob los ntawm kev nce.
Kev teeb tsa: Yog tias nws yog qhov nruab nrab inverter, yog tias muaj lub ntsuas hluav taws xob nyob ze, nruab nws ze ntawm lub ntsuas hluav taws xob. Yog tias cov xwm txheej thiab ib puag ncig zoo, nws kuj tseem tuaj yeem nruab nws nyob ze ntawm cov khoom siv hluav taws xob photovoltaic, uas ua rau txo qis ntawm cov kab thiab khoom siv. Lub hauv paus loj inverters feem ntau yog ntsia rau hauv lub thawv inverter nrog lwm yam khoom siv (xws li hluav taws xob ntsuas hluav taws xob, hluav taws xob hluav taws xob, thiab lwm yam). Ntau thiab ntau dua cov inverters tau muab tso rau ntawm lub ru tsev, tab sis kev sim tau pom tias kev tiv thaiv kev tiv thaiv yuav tsum tau coj mus rau lub inverters kom tsis txhob raug tshav ntuj ncaj qha thiab los nag. Thaum xaiv qhov chaw teeb tsa, nws tseem ceeb heev kom ua tau raws li qhov ntsuas kub, av noo thiab lwm yam kev xav tau pom zoo los ntawm cov chaw tsim khoom inverter. Nyob rau tib lub sijhawm, kev cuam tshuam ntawm lub suab nrov ntawm lub inverter ntawm ib puag ncig ib puag ncig yuav tsum tau xav txog.
Kev siv hnub ci zog txhua hnub hauv lub neej
Hnub ci zog muaj ntau yam kev siv thiab ua haujlwm hauv lub neej. Nws yog ib hom hluav taws xob hluav taws xob, tsis muaj kuab lom thiab tsis muaj kuab lom.
1. Kev tsim hluav taws xob: uas yog, ncaj qha hloov hnub ci zog rau hauv hluav taws xob hluav taws xob, thiab khaws cov hluav taws xob hluav taws xob hauv cov khoom siv hluav taws xob siv thaum xav tau.
Xws li hnub ci txoj kev teeb, hnub ci txoj kev teeb yog ib hom teeb pom kev zoo uas tsis xav tau lub zog hluav taws xob thiab siv lub hnub ci zog los tsim hluav taws xob. Cov teeb pom kev zoo li no tsis xav tau cov khoom siv hluav taws xob lossis cov xaim hluav taws xob, uas yog qhov pheej yig thiab siv tau ntev npaum li lub hnub muaj ntau, vim tias cov khoom lag luam muaj kev txhawj xeeb thiab nyiam los ntawm cov pej xeem, tsis txhob hais tias lawv tsis ua qias tuaj. ib puag ncig, yog li Qhov no tuaj yeem dhau los ua cov khoom lag luam ntsuab, hnub ci txoj kev teeb tuaj yeem siv rau hauv cov chaw ua si, cov nroog, cov nyom. Nws kuj tseem siv tau rau hauv cov cheeb tsam uas muaj cov neeg tsawg tsawg, kev thauj mus los tsis yooj yim, kev lag luam tsis zoo, tsis muaj cov pa roj carbon monoxide, thiab nws nyuaj rau siv cov pa hluav taws xob los tsim hluav taws xob, tab sis cov khoom siv hluav taws xob hnub ci muaj ntau los daws cov teeb meem hauv tsev neeg ntawm cov neeg nyob hauv. cov cheeb tsam no.
2. Lub zog cua sov: uas yog, lub zog cua sov uas lub hnub ci zog hloov mus rau hauv dej, piv txwv li: lub hnub ci dej rhaub.
Hnub ci lub zog siv los ua kom sov dej tau ntev dhau los, thiab tam sim no muaj ntau lab lub hnub ci teeb tsa thoob ntiaj teb. Lub hauv paus ntsiab lus ntawm lub hnub ci dej cua sov system muaj xws li peb qhov chaw: collector, cia khoom thiab ncig pipeline. Nws feem ntau suav nrog qhov sib txawv ntawm qhov sib txawv ntawm kev tswj cov cua kub hauv lub voj voog thiab hauv pem teb cua sov kav dej. Hnub ci dej cua sov tej yaam num tau nce siv nyob rau hauv vaj tse, villas, tsev so, cov neeg mus ncig tebchaws attractions, science thiab technology chaw ua si, tsev kho mob, tsev kawm ntawv, industrial nroj tsuag, ua liaj ua teb cog thiab yug me nyuam cheeb tsam thiab lwm yam loj teb.
Lwm yam, xws li hluav taws xob hluav taws xob tuaj yeem hloov mus rau ntau lub zog txhua yam, thermal zog tuaj yeem hloov mus rau hauv hluav taws xob hluav taws xob, thiab hluav taws xob hluav taws xob kuj tuaj yeem hloov mus rau hauv thermal zog.