Nrog kev nrov nrov ntawm photovoltaic fais fab tuag, lub hnub ci xiav lub hnub ci npog lub ru tsev ntawm cov chaw tsim khoom, khw muag khoom, tsev kawm ntawv, thiab cov tsev nyob hauv tsev tau dhau los ua lub cim tseem ceeb ntawm lub zog huv. Txawm li cas los xij, thaum cov kev teeb tsa hnub ci no ntsib hluav taws kub, muaj kev puas tsuaj ntuj tsim, lossis xwm txheej ceev, ntev - tsis saib xyuas kev nyab xeeb tshwm sim: tsuav yog hnub ci ci, cov photovoltaic modules tsis tu ncua ua rau muaj kev phom sij DC siab txog li 600-1500 volts, ua rau muaj kev hem thawj rau cov neeg tua hluav taws, cov neeg saib xyuas, thiab txawm tias cov neeg nyob hauv ib puag ncig. Tawm tsam qhov teeb meem no, RSD (Rapid Shutdown) thev naus laus zis tau tshwm sim, ua rau muaj kev hloov pauv ntsiag to hauv kev nyab xeeb ntawm lub ru tsev photovoltaic thoob ntiaj teb.
Kev Nyab Xeeb Dilemma ntawm Traditional Photovoltaic Systems
Thaum lub tshuab hluav taws xob photovoltaic ib txwm raug teeb tsa thiab txuas nrog rau daim phiaj, nws txuas ntxiv ua kom muaj siab -voltage tam sim no ntawm DC sab ntev npaum li lub hnub ci tau ntsib. Lub xeev "active" no tuaj yeem ua rau muaj kev puas tsuaj loj thaum muaj xwm txheej ceev:
Cov neeg tua hluav taws ntsib kev pheej hmoo ntawm hluav taws xob poob thaum tua hluav taws hauv tsev.
Cov neeg ua haujlwm kho yuav raug teeb meem hluav taws xob thaum ua haujlwm kho.
Thaum muaj kev puas tsuaj ntuj tsim xws li typhoons thiab av qeeg ua rau cov xaim hluav taws xob puas tsuaj, cov xov hlau raug xa mus ua "cov neeg tua tsis pom."
Cov menyuam yaus lossis tsis yog - cov kws tshaj lij tuaj yeem raug cuam tshuam nrog cov khoom nyob.
Txoj Cai Hluav Taws Xob Hauv Tebchaws (NEC) thawj zaug tau qhia txog lub tswv yim ntawm "kev kaw nrawm" hauv 2014 thiab tau txuas ntxiv ntxiv dag zog rau cov kev xav tau hauv xyoo 2017 (NEC 690.12) thiab 2020 (NEC 690.12(B)) versions, tsav kev hloov pauv ntawm RSD thev naus laus zis los ntawm kev xaiv mus rau qhov yuav tsum tau ua. Niaj hnub no, lub tswv yim kev nyab xeeb no tau maj mam txais los ntawm kev lag luam photovoltaic loj xws li Europe, Australia, thiab Tuam Tshoj.
RSD Technology: Cov Ntsiab Cai thiab Kev Siv
Lub hom phiaj tseem ceeb ntawm RSD thev naus laus zis yog kom txo qis qhov hluav taws xob ntawm ntug ntawm photovoltaic array kom muaj kev nyab xeeb (feem ntau qis dua 30V hauv 30 vib nas this) thaum muaj xwm txheej ceev. Muaj peb txoj hauv kev tseem ceeb rau kev ua tiav lub hom phiaj no:
Module-theem kaw nrawm: Kev sib koom ua ke lub tshuab kaw me me ntawm txhua qhov photovoltaic module, teb rau cov lus txib kaw ntawm lub teeb liab receiver.
Txoj hlua -theem ceev kaw: Txhim kho cov khoom kaw ntawm qib photovoltaic hlua; tus nqi qis dua tab sis yooj yim dua me ntsis.
Optimizer integration solution: Integrating the shutdown function to the power optimizer, achieved two optimization of safe and power generation efficiency.
Tsis hais txog ntawm daim ntawv, ib qho RSD system feem ntau muaj peb ntu: lub kaw lus kaw tau nruab rau ntawm lub module lossis txoj hlua, tus tswj lub kaw lus, thiab phau ntawv kaw. Thaum kaw qhov xwm txheej tshwm sim (xws li hluav taws xob teeb liab, kev ua haujlwm ntawm phau ntawv, lossis kab sib txuas lus), lub kaw lus txo qis qhov txaus ntshai rau qib kev nyab xeeb hauv kaum vib nas this.
Hauv -Kev tsom xam qhov tob ntawm kev siv cov xwm txheej
Kev lag luam thiab kev lag luam ru tsev solar fais fab nroj tsuag: Sib npaug kev nyab xeeb thiab kev ua haujlwm
Hauv loj -teev kev lag luam thiab kev lag luam ru tsev photovoltaic tej yaam num, RSD systems qhia ntau yam txiaj ntsig. Noj 20MW rooftop hnub ci PV system ntawm lub tsheb tsim kev lag luam ua piv txwv, kev teeb tsa ntawm lub module -level RSD (Txo Voltage Suppressor) system tsis tsuas yog ua tau raws li cov cai tshiab hauv zej zog kev nyab xeeb tab sis kuj coj tau cov txiaj ntsig tsis xav txog:
Lub tuam tsev tua hluav taws tau faib qhov project li "tsawg- kev pheej hmoo," uas ua rau txo qis 12% ntawm lub tuam txhab cov nyiaj pov hwm txhua xyoo.
Thaum lub sijhawm ua haujlwm niaj hnub, cov kws tshaj lij tuaj yeem kaw cov ntu ntawm cov array hauv theem yam tsis muaj kev cuam tshuam rau lub zog tsim hluav taws xob hauv lwm qhov chaw.
Lub kaw lus integrates ntse saib xyuas, ua rau tej thaj chaw deb kuaj mob ntawm module raws li txoj cai thiab kev txhim kho kev khiav hauj lwm thiab txij nkawm efficiency ntawm 25%.
Chaw Nyob PV Systems: Tus Saib Xyuas Kev Nyab Xeeb Hauv Tsev
Hauv kev siv vaj tse nyob, tus nqi ntawm RSD thev naus laus zis tseem ceeb dua. Hauv California, lub hnub ci vaj huam sib luag PV hluav taws xob hluav taws xob vim muaj hluav taws xob. Thaum tuaj txog, cov neeg tua hluav taws tam sim ntawd ua rau RSD hloov, txo qhov hluav taws xob ntawm tag nrho cov array kom muaj kev nyab xeeb nyob rau hauv 30 vib nas this, tiv thaiv cov xwm txheej thib ob. Tus tswv tsev tom qab ntawd hais tias, "Kev paub tias cov neeg tua hluav taws tuaj yeem tua hluav taws lub ru tsev ua rau kuv pw tsaug zog ntau dua."
Daim Ntawv Thov Tshwj Xeeb: Kev Sib Tw thiab Kev Tsim Kho Tshiab
Hauv qee qhov chaw tshwj xeeb, RSD thev naus laus zis ntsib cov teeb meem tshwj xeeb thiab tau txhawb nqa cov kev daws teeb meem tshiab:
High- thaj chaw siab: Txhim kho rwb thaiv tsev RSD cov cuab yeej tsim los rau qis- qhov chaw siab
Ntug hiav txwv corrosive ib puag ncig: Corrosion-resistant RSD cov khoom siv tshwj xeeb coatings thiab sealing technologies
Agricultural photovoltaics: Tsim cov kev daws teeb meem tshwj xeeb los tiv thaiv hluav taws xob poob siab rau cov tsiaj nyeg, hais txog lawv cov kev xav tau kev nyab xeeb
Tus nqi - kev tshuaj xyuas qhov txiaj ntsig: Ntev - lub sij hawm rov qab los ntawm kev nqis peev kev nyab xeeb
Txawm hais tias RSD cov tshuab nce kev nqis peev thawj zaug (kwv yees li 3-8% ntawm tag nrho cov nqi ntawm lub tshuab hluav taws xob photovoltaic), Nws lub neej voj voog tus nqi tseem ceeb:
Risk mitigation value: Zam txhob muaj tej xwm txheej raug mob ntawm tus kheej thiab muaj feem cuam tshuam raws li txoj cai.
Cov txiaj ntsig kev pov hwm: Ntau lub tuam txhab pov hwm muab 5-15% cov nqi txo nqi rau cov tshuab photovoltaic nruab nrog RSDs.
Txhim kho kev ua haujlwm thiab kev saib xyuas kev ua haujlwm zoo: Ib puag ncig ua haujlwm nyab xeeb txo qis sijhawm thiab txhim kho kev txij nkawm zoo.
Kev tiv thaiv tus nqi: Tiv thaiv kev puas tsuaj rau tag nrho lub cev los ntawm kev sib tsoo xws li hluav taws kub.
Kev tswj hwm txoj cai: Ua tau raws li cov cai tswj kev nyab xeeb ntxiv thiab zam kev nplua rau kev ua txhaum cai.
Piv txwv li, ntxiv RSD system rau 100kW kev lag luam lossis kev lag luam ru tsev tsim nqi kwv yees li 15,000-20,000 RMB, tab sis los ntawm cov txiaj ntsig kev pov hwm, txhim kho kev ua haujlwm thiab kev saib xyuas, thiab kev pheej hmoo txo qis, lub sijhawm them rov qab tsuas yog 3-4 xyoo.
Kev sib tw technology thiab kev txhim kho tiam sis
Tam sim no, RSD thev naus laus zis tseem tab tom ntsib qee qhov kev sib tw: kev sib koom ua haujlwm tsawg ntawm cov khoom siv los ntawm cov tuam txhab sib txawv; kev ntseeg siab nyob rau hauv huab ib puag ncig yuav tsum tau xyuas kom meej; thiab kev sib npaug ntawm kev ua haujlwm raws li tus nqi siab. Txhawm rau daws cov teeb meem no, kev lag luam tau txav mus rau hauv cov lus qhia hauv qab no:
Standardization thiab Interoperability: Txhawb kev tsim kom muaj kev sib koom ua ke kev sib txuas lus thiab cov qauv kev sib tshuam.
Intelligent Integration: Kev sib sib zog nqus nrog cov phiajcim ntse thiab lub zog khaws cia.
Multifunctional Integration: Ua ke nrog kev nyab xeeb kaw nrog lub zog ua kom zoo dua qub, kev saib xyuas, thiab kev kuaj mob ua haujlwm.
Daim Ntawv Thov Cov Khoom Tshiab: Txais cov ntaub ntawv tshiab xws li dav -bandgap semiconductors los txhim kho kev ua haujlwm.
Xaus: Los ntawm kev xaiv mus rau Qhov Tseem Ceeb Kev Nyab Xeeb Evolution
Raws li lub ntiaj teb photovoltaic (PV) tau teeb tsa lub peev xwm tshaj li 1 terawatt cim, PV kev nyab xeeb tau hloov zuj zus los ntawm qhov teeb meem kev tshaj lij mus rau lub luag haujlwm hauv zej zog. RSD (Rapid Shutdown) thev naus laus zis, raws li "kawg txuas" hauv PV system kev nyab xeeb, tab tom hloov los ntawm kev xaiv siab - kawg mus rau tus qauv kev lag luam. Nyob rau hauv lub neej yav tom ntej, nrog kev nce qib thiab kev lag luam ntawm cov nplai, RSD cov nqi yuav txo qis dua, thaum kev ua haujlwm yuav dhau los ua kev nplua nuj, thaum kawg paub txog qhov tshiab ntawm "ntseeg, ua tau zoo, thiab nyab xeeb" PV systems.
Nyob rau lub sijhawm no ntawm kev loj hlob ntawm lub zog huv si, RSD thev naus laus zis ua haujlwm zoo li "lub hlwb kev nyab xeeb" rau PV systems, ntsiag to tiv thaiv txhua lub ru tsev fais fab chaw nres tsheb thiab xyuas kom meej tias lub zog ntsuab tiag tiag ua qhov kev nyab xeeb, txhim khu kev qha, thiab kev xaiv zoo rau yav tom ntej. Rau kev lag luam photovoltaic, kev nqis peev hauv RSD tsis yog hais txog kev ua raws li cov cai, tab sis kuj hais txog kev hwm lub neej, kev lav phib xaub, thiab ua ib txoj kev npaj zoo rau lub sijhawm ntev - kev loj hlob ntawm kev lag luam.
