Tau qhov twg los: solarpowerworldonline
Puas tau txij li qhov av txig rau ntawm 1,500-V cov kab lus tau hais hauv xyoo 2017 Lub Tebchaws Txoj Cai Hluav Taws Xob, cov tuam ntxhab tau sib zog ua haujlwm rau 1,500-V-rated solar panels, inverters thiab txhua yam nyob hauv nruab nrab. Cov khoom siv hluav taws xob ntau ntawm hnub ci tso cai rau cov nruab rau cov kab hluav taws xob thaum ua kom tiav cov khoom hluav taws xob zoo ib yam.
Ntu 690.7 nyob rau xyoo 2017 NEC tau tsim tsa thawj zaug tias cov tshuab hluav taws xob hauv av tuaj yeem muaj qhov siab tshaj plaws ntawm 1,500 V. Cov tshuab hluav taws xob loj tau pib hloov mus rau 1,500 volts hauv lub xyoo ua ntej cov cai no vim tias cov qauv sib txawv, tab sis tus lej hloov kho tshiab qhib tau qhov tseem ceeb ntawm 1,500 volts rau cov haujlwm siv hluav taws xob me me thiab qhov ntsuas hluav taws xob loj uas muaj qhov haum uas ua lag luam zoo.
Daim ntawv qhia "2017 International Technology Roadmap rau Photovoltaic (ITRPV)" qhia txog cov qauv ntawm qhov system voltage nce ntawm 1,000 volts mus txog 1,500 volts. Txoj kev tshawb no pom tias txij xyoo 2020 mus, 1,500-V kev lag luam yuav ntau dua 30%, thiab qhov hluav taws xob ntawd yuav ncav cuag lub lag luam kev lag luam ntau dua 50% pib xyoo 2025.
Dab tsi yog 1,500 volts hnub ci system
Kev nce ntawm 500 qhov hluav taws xob tso cai rau cov neeg cog lus ua kom lub tshuab ua kom txaus siab vim tias txhua tus inverter tuaj yeem ua haujlwm ntau lub zog. Ntau cov phiaj xwm tuaj yeem txuas nrog hauv cov kab ua kom cov hlua ntev dua. Yuav tau muaj cov xov hlau tsawg. Tsawg tus inverters xav tau vim tias lawv tuaj yeem txais ntau lub hwj chim. Tab sis 1,500-V system tsuas tuaj yeem ua haujlwm yog tias txhua qhov ntsuas tau ntsuas kom ua tau ntawm 1,500 V.
Feem ntau cov hnub ci vaj huam sib luag cov tuam txhab tau pib hloov kho lawv cov vaj huam sib luag siv nyob rau hauv cov dej num ntawm cov dej num mus rau 1,500 V. Jeff Juger, tus thawj coj ntawm kev txhim kho kev lag luam rau JinkoSolar, tau piav qhia tias cov hnub ci nruab hnub tseem yuav xav tau tib qho ntawm tag nrho cov vaj huam sib luag kom ncav cuag cov wattage hauv 1,500 -V system, tsuas yog tsawg dua txoj hlua ntawm lub panels. Piv txwv li, yog hais tias ib qho hluav taws xob qhov hluav taws xob ntawm qhib Circuit Court (Voc) yog 45 VDC, tom qab ntawd lub 1,000-V system tso cai 22 modules (1,000 / 45) hauv txoj hlua hos 1500-V system tso cai 33 modules (1,500 / 45) hauv txoj xov.
Tus nqi ntawm 1,500-V modules yog qhov tseem ceeb tib yam li hluav taws xob hluav taws xob qis, txawm tias cov ntaub ntawv sib txawv me ntsis tau siv hauv kev tsim khoom. Juger tau hais tias tsuas yog cov teebmeem nrog cov phiajcim tshiab no yog cov sijhawm ua kom muaj peev xwm txo qis, lossis PID.
"High voltage tuaj yeem tsim kev pheej hmoo ntawm PID, qhov twg ions khiav tawm ntawm lub hlwb mus rau tus qauv module, uas ua rau muaj xau tam sim no," Juger tau hais. "Jinko yog thawj zaug muab qhov Modular PID tsis pub siv thiab tsis muaj teeb meem dab tsi nrog PID hauv nws qhov 1,500-V modules."
Cov nqi siv zog tam sim no
Cov hluav taws xob muaj hluav taws xob qis dua vim tias cov khoom siv tsawg dua yog xav tau, los ntawm cov khoom loj xws li kev hloov pauv mus rau cov khoom me me xws li cov xaim thiab cov cuam tshuam. Qhov no vim tias tam sim no, uas yog inversely proportional rau voltage, yuav nqes mus raws li voltages nce. Qhov ntau thiab tsawg ntawm cov neeg xyuas pib tuaj yeem txo vim tias tam sim no tsawg dua, thiab tus nqi nqis nrog tus neeg xyuas pib loj dua.
Eric txhua, tus thawj tswj cov khoom ntawm Yaskawa - Solectria Hnub Ci "Cov lus tshaj tawm uas peb muaj ntawm no yog tus nqi them tam sim no." "Qhov ntau dua uas koj ua rau koj qhov voltage, qhov tsawg dua qhov khoom lag luam uas koj xav tau yuav."
Txhua tus tau hais tias nce mus los ntawm 1,000-V rau 1,500-V lub cev tsuas yog txhais tau tias ua rau cov xov hluav taws xob muaj me me loj dua, thaum nqes mus rau hauv voltage thiab tam sim no yuav tsum muaj ntau cov khoom siv tooj liab nyob hauv cov xov hlau. Kev siv ntau tooj liab yog kim nyob rau hauv cov ntaub ntawv ntawm ntau-megawatt, yog li siv tsawg tooj liab nrog 1,500-V systems yog kev xaiv txais tos rau kev tsim kho cov hnub ci loj thiab nruab.
Cov kab ke loj, loj zog
1,500-V nqi txuag yog qhov loj tshaj thaum xa tawm ntawm qhov loj. Tias yog vim li cas 1,500-V central inverters tau dhau los ua thawj, thiab tsuas yog tshwj xeeb, kev xaiv rau kev tsim hluav taws xob tshiab ntau ntxiv hauv Tebchaws Meskas, thaum 1,500-V txoj hlua inverters tsuas yog tam sim no nkag mus hauv kev lag luam los pab rau cov haujlwm me me.
"Nrog rau qhov kev hloov mus rau 1,500 volts, koj tau txais cov muaj zog dua inverters," Carlos Lezana hais, kev lag luam thiab kev sib txuas lus rau hnub ci rau Ingeteam, uas tsim ob txoj hlua thiab nruab nrab inverters. "Yog tias koj txhim kho cov hluav taws xob 100-MW] nrog lub zog ntsuas hluav taws xob uas muaj 1,500-V hauv plawv, koj yuav xav tau tsawg dua [thiab] cov ntsuas hluav taws xob tsawg dua yog tias koj ua nrog 1,000-V inverters."
Tsawg dua cov hauv nruab nrab sab hauv txhais tau tias tsawg dua kev ua haujlwm thiab tsawg dua cov thawv zuag hluav taws xob xav tau los sib sau ua ke ntawm cov xov hluav taws xob no. Tsawg dua tus inverters tseem txhais tau tias tsawg dua cov kws kho yuav tsum txhim kho teeb meem tom qab commissioning.
Lezana tau hais tias "Thaum koj muaj tus yauv qis, tom qab ntawd tag nrho cov nqi ntawd, cov nqi zog kev ua haujlwm raug txo kom tsawg,"
Txawm hais tias txav mus rau 1,500 volts los nrog ntau cov txiaj ntsig, muaj qee qhov poob qis. Cov hluav taws xob ntau dhau los ntawm tsawg dua hauv nruab nrab sab hauv txhais tau tias ntau zog poob yog tias tus inverter tsis ua haujlwm.
Lezana hais tias "Pom tseeb yog tias koj muaj qis dua inverters, nws yog vim tias txhua tus ntawm lawv tswj hwm ntau lub zog, yog li yog tias ib qho poob qis, ces koj yuav poob ntau lub zog," Lezana tau hais. “Txhua qhov chaw tsim hluav taws xob PV inverter muaj qhov ua tsis tiav. Koj yuav tsum xyuas kom koj cov neeg xa khoom, lossis cov tuam txhab uas saib xyuas cov haujlwm thiab kev saib xyuas zoo, yuav maj nrawm rau hauv cov lus teb, vim tias koj xav kom koj lub chaw ua haujlwm fais fab ua haujlwm ntawm lub zog tag nrho txhua lub sijhawm, zoo li ntau cov sij hawm raws li tau. "
Nkag rau 1,500-V txoj hlua inverters
1,500-V txoj hlua inverters nkag mus rau cov nqi hluav taws xob ua lag luam txog ib xyoo dhau los tab sis ua rau muaj kev txiav txim zoo rau cov phiaj xwm me, zej zog hnub ci.
Piv txwv li, nrog rau 20-MW fais fab cog, EPCs tuaj yeem siv tsib lossis rau 1,500-V central inverters lossis ntau pua ntawm 1,500-V cov inverters. Cov kev xaiv yuav nqis los tag nrho tus nqi thiab kev pabcuam, tab sis nws meej meej tias cov haujlwm loj ntawm cov dej num yuav tseem lo nrog nruab nrab inverters.
Txhua tus tau hais tias "Yog tias koj ua 100 MW, Kuv tsis paub tseeb tias nws yuav ua rau nkag siab siv cov hlua inverters," Txhua tus hais. "Peb yuav twv yuav ua txoj haujlwm rau nws, tab sis tej zaum cov neeg yuav khoom yuav xaiv lub chaw nruab nrab vim tias lawv yuav tuaj yeem muaj qhov sib koom ntawd."
Kev pabcuam ntawm txoj hlua inverters feem ntau ua rau 1,500-V txoj hlua inverters ib qho kev xaiv zoo rau cov nqi hluav taws xob me dua-rau lub tshuab.
Yog tias ib qho ua tsis tiav, tsuas yog ib txoj hlua cuam tshuam thiab tuaj yeem hloov mus rau chav tsev tshiab kom tsis muaj kev ncua ntev. Central inverters tseem pheej yig tshaj txoj hlua ntawm cov xees ib watt ntawm cov dej num loj-siv cov phiaj xwm, tab sis txoj hlua yuav yeej rau cov kev pabcuam tau yooj yim, tshwj xeeb tshaj yog thaum hluav taws xob ntau tsa cov ceg txheem ntseeg.
“Txoj kev rov qab los yog txoj kev nrawm dua nyob ntawm txoj hlua. Koj tsuas yog ua qhov hloov pauv yooj yooj yim nrog cov khoom seem uas yuav nyob ntawm qhov chaw. Kev hloov pauv tuaj yeem ua tiav hauv ib nrab ib teev, yog li nws tau ua kom rov zoo sai dua, "said Ed Heacox, tus thawj coj ntawm CPS America.
Solectria tau xaiv los ze rau 1,500-V kev ua lag luam nrog tsuas yog cov hlua inverters vim yog qhov tseeb no. Lub tuam txhab tab tom txiav txim siab nws 1,000-V central inverter cov khoom lag luam tam sim no - tsis pom zoo siv rau kev tsim qauv tshiab.
"Thaum peb txiav txim siab tsim cov khoom tsim kho 1,500-V, peb hais tias, 'Hav, peb yuav ntsib lub sijhawm nyuaj nrog O & M qhov teebmeem no yog tias peb mus nrog lub hauv nruab nrab inverter. Txhua tus ntawm peb cov qhua yeej nyiam cov kev pabcuam ntawm txoj hlua inverter, cia li ua qhov ntawd, '”Txhua tus hais.
Wood Mackenzie Lub Hwj Hwj & Renewables '"Ntiaj Teb PV Inverter thiab MLPE Toj roob hauv pes: H1 2018" pom pom peb-theem txoj hlua inverter xa khoom tau nce 59% xyoo-rau-xyoo thiab tshaj qhov nruab nrab inverter xa los ntawm ze li 7 GW los ntawm 2015 txog 2017. Nws pom tias 2018 yog qhov pib ntawm kev nce ntxiv ntawm txoj hlua inverters hauv Tebchaws Asmeskas vim tias kev siv tshiab-1,500 txoj hlua ntev inverter qauv.
"Peb pom tias qhov feem pua ntau dua ntawm cov haujlwm uas peb cov neeg siv khoom tau ua yog siv lawv nrog txoj hlua inverter topology uas tsis yog qhov nruab nrab rau hauv nruab nrab. Thiab txhua txhua xyoo ntawd feem pua zoo li nce mus, ”Txhua tus hais.
Solectria tau ib txwm tsom rau C & I cov dej num ntawm 100 kW thiab 20 MW, nrog lawv feem ntau yog 1- rau 5-MW coj los ua lag luam vov tsev lossis cov phiaj xwm me me hauv av. Nws cov tshiab-1500-V txoj hlua inverter, uas yuav pib xa mus rau lub Kaum Ob Hlis 2018, yuav phiaj rau "Kuv" ib feem ntawm C & I - kev lag luam, faib-txuas nrog, zej zog hnub ci, chaw tsim khoom siv-hom phiaj.
Txhua tus tau hais tias "Yog tias nws yog qhov sib piv ntawm 1,500-V thiab 1,000-V [txoj hlua inverters], tus nqi txuag nyiaj yog tiag tiag rau 1,500 volts," Txhua tus hais. Kev tsim cov nqi qis dua uas tshwm sim los ntawm kev ua haujlwm tsawg nyob rau hauv daim teb, kev ntoj kev mus tsawg thiab cov hlau me me tuaj yeem pab txhim kho tau yeej twv ntau dua.
Txhua tus tau hais tias, "Koj tau txais tus nqi zoo dua ib watt hauv koj cov qauv, koj tau txais tus nqi zoo dua rau ib watt thaum koj saib cov yeeb nkab thiab xov hlau hauv kab ke," Txhua tus tau hais.
Kev phom sij: Kev kub siab
Qhov hluav taws xob ntau ntxiv txhais tau tias nce ntxiv rau kev nyab xeeb rau cov neeg ua haujlwm yog tias muaj qee yam tsis raug. Tab sis Heacox muaj kev ntseeg ntawm cov lej kev lag luam thiab cov qauv.
Heacox tau hais tias "Tus qauv thiab cov cai tau suav txog qhov hloov siab dua, yog li kev xav yuav tsum tsis txhob muaj kev pheej hmoo nyab xeeb ntxiv txog qhov no," Heacox tau hais. “Kuv ntseeg li ntawd. Tib neeg paub ntau zog yog qhov pheej hmoo ntau dua. "
John Drummond, CPS America cov kws ua haujlwm tsim qauv, ntxiv hais tias cov teeb tsa yuav tsum paub tseeb siv cov khoom siv ntsuas 1.500-V, los ntawm cov xaim hluav taws xob mus rau voltmeters thiab txhua qhov chaw nruab nrab. Cov txhim kho yuav tsum tseem nco ntsoov tias qhov chaw ua haujlwm tshem tawm zoo sib txawv rau 1,500-V cov haujlwm.
"Qhov chaw ua haujlwm tsis tu ncua rau 600 thiab 1,000 volts tsis muaj feem xyuam rau 1,500 volts. Koj yuav tsum siv laj kab siab dua, khaws cov khoom sib nrug deb ntxiv, ntxiv cov teeb pom kev zoo ntxiv, cov khoom zoo li ntawd, "Txhua tus hais.
Txawm hais tias Drummond thiab Heacox ntseeg tias siv 500-V thev naus laus zis nyab xeeb, nws tseem tau khi rau hauv av. Drummond tau hais tias nws pom yav tom ntej yav tom ntej uas 1,500-V tshuab tuaj yeem mus rau ntawm lub ru tsev ib yam nkaus, tab sis nws yuav xav tau kev lees txais kev lag luam.
"Tiag tiag thaum ntxov ... cov hom kev siv tau 'qab qab laj kab,' thiab kuv xav tias tsuas yog peb hloov ntawm 600 mus rau 1,000 volts, nws yog tib yam tsis kam hloov mus rau 1,500 volts rau txhua daim ntawv thov," Drummond tau hais.
Txhua tus tsis pom 1,500 volts puas tau tso cai nyob hauv cov tsev nyob vim muaj kev txhawj xeeb txog kev nyab xeeb, tab sis nws hais tias 1,500-V coj mus muag hluav taws xob hnub ci yuav yog yav tom ntej. Txawm li cas los xij, cov hlua ntev uas los nrog 1,500 volts yuav raug txwv thaum tsim qauv pob zeb sawv kev teeb tsa. Kev muab 26 rau 28 ntsa rau hauv ib txoj kab ncaj nraim tsis yog ib qho yooj yim.
"Hauv 1,000-V [lub vov tsev] ... koj siv tau yooj yim dua nrog qhov uas koj pw koj lub ru tsev vim koj txoj hlua luv dua. Koj yuav tsum khiav ob peb xaim ntau, tab sis tsawg kawg koj tuaj yeem ntim lub ru tsev zoo dua me ntsis, ”Txhua tus tau hais.
Kev siv hluav taws xob ntau ntawm hnub ci coj kev ua kom yooj yim thiab txuag nqi rau cov tsim hluav taws xob hnub ci, thiab cov kev xaiv yuav txuas ntxiv mus ntxiv thaum muaj ntau dua li 1,500-V cov khoom siv hnub ci nkag rau hauv kev ua lag luam.
