Lub Peb Hlis Ntuj Tshiab Rau Kev Tshaj Tawm PV

Nyob rau hauv thawj peb lub hlis twg, qhov tshiab PV muaj peev xwm yog 52.6GW, cov uas faib PV muaj peev xwm yog 35.3GW, accounting rau 67 feem pua.

Faib photovoltaic tau ushered nyob rau hauv lub era ntawm npau suav lub sij hawm, tab sis nyob rau tib lub sij hawm yuav ntsib unprecedented kev ua lag luam saib xyuas thiab kev tswj.

1. Kev pheej hmoo ntawm tus nqi hluav taws xob

Raws li peb txhua tus paub, cov nyiaj tau los ntawm PV faib yog ze rau cov neeg siv khoom siv hluav taws xob, tshwj xeeb tshaj yog rau kev lag luam thiab kev lag luam faib PV. Tsis ntev los no, xeev Shandong, ib lub xeev loj tshaj plaws hauv lub xeev photovoltaic, tau tso lub "dej foob pob" ntawm no.

Lub Kaum Ib Hlis 16, Lub Xeev Grid Shandong Electric Power Company thiab Shandong Power Trading Center tau tshaj tawm cov lus tshaj tawm ntawm lub sijhawm sib koom peak-valley coefficient thiab lub sijhawm ua tiav ntawm peev nyiaj them rau xyoo 2023, qhia txog hav tob thiab peak coefficient thiab lub sijhawm ua tiav thawj zaug. Tsuas yog nyob rau lub caij ntuj sov, 11:00 ~ 14:00 muab faib ua ntu hauv hav tob, uas yog lub ncov ntawm photovoltaic zog tsim tawm.

Nws kwv yees tias nrog rau kev siv lub sijhawm sib sib zog nqus hav thiab coefficient txoj cai, tus nqi hluav taws xob qis tshaj plaws rau kev lag luam thiab kev lag luam sib sib zog nqus kwj hauv Shandong yuav raug txo kom txog li 0.1 yuan / h, thiab kev lag luam thiab kev lag luam xa tawm. photovoltaic cov nyiaj tau los txo qis heev.

Txog qhov kawg no, ib zaug cov xov xwm tawm, muaj ntau tus neeg ua lag luam thiab cov neeg tsim khoom hu ua "kev lag luam thiab kev lag luam ua tsis tau".

"Lub sijhawm luv luv, cov haujlwm ntawm tus kheej yuav raug cuam tshuam." Zhang Xiaobin, tus lwm thawj tswj hwm ntawm Shandong Solar Energy Industry Association, tau hais tias, "Txawm tias muaj kev sib ntxiv ntawm lub zog cia, cov nyiaj rov qab siab dua ntawm ntau dua 20 feem pua ​​​​ntawm kev lag luam thiab kev lag luam faib PV tsis tuaj yeem txhawb nqa."

Thaum kawg ntawm lub kaum hli ntuj xyoo no, cov khoom tsim PV muaj peev xwm nyob rau hauv Shandong tshaj 40GW, ntawm cov uas faib PV muaj tshaj 29GW. Nrog rau ntau lub zog tshiab txuas nrog daim phiaj hauv lub sijhawm luv luv, cov kev cai siab tshaj plaws ntawm daim phiaj hluav taws xob tau nce zuj zus ib hnub. Raws li rau lub zog cia, uas muaj kev txhawj xeeb thoob plaws hauv kev ua lag luam, Zhang Xiaobin ntseeg tias los ntawm qhov xwm txheej tiag tiag, tsis hais txog ntawm cov txheej txheem kev lag luam, kev thov kev lag luam, lossis lub peev xwm, nws nyuaj rau lub zog cia rau "lub xub pwg nyom hnyav" ntawm tam sim no.

Lwm qhov kev faib tawm photovoltaic cov tub ua lag luam kuj hais ncaj ncees, qhov tam sim no muab cov khoom siv hluav taws xob photovoltaic tsis yog tsuas yog nyob rau ntawm qhov chaw teeb tsa kev nyab xeeb kev tswj hwm kev nyab xeeb yog nruj, tab sis kuj tau ntsib cov txheej txheem nyuaj tshaj li qhov kev xav, cov qauv kev lag luam tsis tuaj yeem suav rau, kev daws teeb meem kev ua qauv qhia nyuaj thiab ntau yam. bottlenecks, "txawm tias ib qho chaw xyoo no tshem tawm lub teeb cia qhov project".

Qhov tseeb, Shandong tsis yog thawj lub xeev los siv cov nqi hluav taws xob hloov pauv. Raws li daim ntawv tshaj tawm tus nqi hluav taws xob tshiab ntawm Hebei Southern Network nyob rau lub Kaum Ib Hlis, tus nqi hluav taws xob muag hauv 1kV yuav raug muag raws li kev txiav txim siab, thiab tus nqi hluav taws xob rau ntu ntu yuav raug siv los ntawm 12:00 mus rau 15: 00, uas yog lub ncov ntawm photovoltaic tso zis.

Zhang Xiaobin ceeb toom tias ntau txoj cai teeb liab txij li xyoo no qhia tau hais tias yav tom ntej yog qhov tseem ceeb, ntsuas tau, kho tau, tswj tau, thiab "leej twg nqis peev, leej twg tau txais txiaj ntsig, leej twg dais" yuav yog yav tom ntej faib cov tub ua lag luam photovoltaic yuav tsum tau ntsib cov qauv dav dav, "tsis yog. tsuas yog Hebei, Shandong, ua ntej lub xyoo xaus lossis ntau lub xeev yuav qhia txog cov nqi hluav taws xob los coj cov kev faib hluav taws xob photovoltaic kom tsim nyog thiab noj qab nyob zoo.

2. Tus nqi hluav taws xob network

Grid stress kuj qhia ncaj qha rau hauv daim phiaj nkag.

Thaum lub Cuaj Hlis 27, Hebei Kev Txhim Kho thiab Kev Hloov Kho Commission tau tshaj tawm tsab ntawv ceeb toom ntawm Kev Txhim Kho Kev Tswj Xyuas ntawm lub ru tsev faib hluav taws xob photovoltaic. Nws tau taw qhia tias lub peev xwm nruab ntawm lub ru tsev faib hluav taws xob hluav taws xob photovoltaic tau loj hlob sai, tab sis qee qhov chaw muaj teeb meem xws li kev ua tsis zoo ntawm cov qauv thiab kev siv ntau dhau ntawm cov khoom siv hluav taws xob, uas muaj qee yam cuam tshuam rau kev siv hluav taws xob kev nyab xeeb thiab hluav taws xob zoo. Txhawm rau ntxiv dag zog rau kev tshawb fawb, kev tsim kho thiab kev nyab xeeb ntawm lub ru tsev faib photovoltaic (PV), kev muaj peev xwm dhau los yog txwv nruj heev. Lub peev xwm PV (nrog rau lub peev xwm uas tau sau tseg thiab tab tom tsim los yog tsim) txuas nrog lub ntsiab transformer (distribution transformer) ntawm daim phiaj hluav taws xob ntawm txhua qib yuav tsum tsis pub tshaj 80 feem pua ​​​​ntawm cov peev txheej ntawm cov khoom siv. Nyob rau tib lub sijhawm, qhov muaj peev xwm siv tau ntawm daim phiaj hluav taws xob yuav tsum tau nthuav tawm ua ntu zus. Lub ru tsev uas siv tau cov khoom siv hluav taws xob faib hluav taws xob ntawm lub nroog daim phiaj hluav taws xob yuav tsum tau suav nrog hauv cov hauv paus ntsiab lus raws li lub zog tsis xa rov qab mus rau daim phiaj hluav taws xob ntawm 220 kV lossis siab dua.

Raws li kev suav ntawm cov chaw saib xyuas hluav taws xob muaj feem cuam tshuam, ntau lub nroog hauv Hebei Southern Network tsis muaj qhov chaw nkag mus rau photovoltaic. Thaum kawg ntawm lub Cuaj Hli, qhov sib sau ua ke muaj peev xwm ntawm PV hauv Hebei yog 36.7GW, suav txog 33.4 feem pua ​​​​ntawm tag nrho cov peev txheej tsim hluav taws xob hauv zos.

Txhawm rau kom haum rau daim phiaj, cov nqi sib txuas ntxiv ntawm cov PV faib tau nce ntxiv.

Tom qab cov chaw nres tsheb fais fab hauv nruab nrab, cov khoom siv hluav taws xob photovoltaic faib thiab cov cai khaws cia yog nquag. Ntau qhov chaw xws li Shandong, Hebei, Jiangsu, Anhui thiab Zhejiang tau qhia lossis txhawb lossis yuam kom faib cov duab hluav taws xob rau lub zog cia.

Ntxiv rau kev faib khoom thiab khaws cia, thaum Lub Xya Hli xyoo no, Henan Xeev, lub xeev loj ntawm PV faib, tau ua tus thawj coj hauv kev xa cov cua xa hluav taws xob thiab faib PV (tsis suav nrog cov phiaj xwm daws kev txom nyem) txuas rau kab hluav taws xob nrog qib voltage ntawm 10 ( 6) kV nyob rau hauv lub xeev nyob rau hauv lub Scope ntawm kev ua lag luam players, koom nyob rau hauv kev lag luam kev tswj kev pab cuam ntawm Henan hluav taws xob hwj chim tswj peak tswj, thiab faib auxiliary cov kev pab cuam raws li tam sim no trading kev cai ntawm lub ncov nqi kev faib txoj kev ntawm lub zog tshiab nroj tsuag.

Nyob rau tib lub sijhawm, Shandong, lub xeev cov qauv ntsuas rau kev faib PV, ib zaug ntxiv coj mus. Thaum pib lub Rau Hli xyoo no, Shandong Energy Regulatory Office, Provincial Development thiab Reform Commission, thiab Lub Chaw Haujlwm Saib Xyuas Hluav Taws Xob Hauv Xeev tau teeb tsa thiab tsim daim ntawv ceeb toom ntxiv txog cov teeb meem ntsig txog kev sim ua haujlwm ntawm Shandong Power Spot Market Settlement hauv 2022 (draft rau cov lus pom), uas yuav tsum tau ua. los txhawb kev koom tes ntawm cov khoom siv hluav taws xob tshiab hauv kev lag luam hluav taws xob thiab maj mam suav nrog kev faib hluav taws xob tshiab rau hauv thaj tsam ntawm cov chaw lag luam. Koom nrog hauv kev lag luam sib txawv ntawm tus nqi sib koom sib npaug nrog lub chaw nres tsheb hluav taws xob tshiab hauv nruab nrab. Txawm li cas los xij, qhov kev xav tau no tau raug tshem tawm ntawm cov ntaub ntawv raug cai.

Txawm li cas los xij, nws tsim nyog sau cia tias thaum Lub Kaum Hli 20, Shandong Provincial Lub Chaw Haujlwm Hluav Taws Xob tau tshaj tawm tsab ntawv ceeb toom rau Kev Tshawb Fawb Txog Kev Lag Luam Hauv Xeev Hauv Kev Lag Luam Hluav Taws Xob hauv xyoo 2023, qhia meej meej tias raws li lub hauv paus ntsiab lus ntawm "leej twg tau txais txiaj ntsig, leej twg dais", kom muaj kev txhawb nqa. faib lub zog tshiab los koom nrog hauv kev faib nyiaj hauv kev lag luam, thiab txhawb nqa lub zog tshiab thiab kev faib khoom siv hluav taws xob cia koom nrog hauv kev lag luam hluav taws xob.

Raws li kev lag luam sab hauv, tam sim no kev lag luam sib txawv ntawm kev sib faib nqi ntawm Shandong tshiab lub zog fais fab chaw nres tsheb yog hais txog {{0}}.02-0.03 yuan/degree, thiab nws tau nce. Raws li txoj cai tshiab, kev lag luam peev tuaj yeem ua qauv peev nrog cov nyiaj tau los ntawm kev txuag hauv thaj tsam ntawm 0.01-0.03 yuan/degree.

3. Kev ruaj ntseg

Kev nkag mus, cov nyiaj tau los, lwm qhov tseem ceeb ntawm kev faib PV yog kev ruaj ntseg.

Sib txawv ntawm qhov chaw nres tsheb photovoltaic centralized, faib photovoltaic yog ze rau cov neeg siv sab. Nrog rau kev nce qib ntawm cov cuab yeej technology, theem fais fab thiab tam sim no voltage ntawm cov khoom photovoltaic tau txhim kho tas li, thiab photovoltaic system tau hloov kho los ntawm thawj 600V mus rau 1000V thiab maj mam mus rau 1500V. High voltage kuj txhais tau tias muaj kev pheej hmoo hluav taws ntau dua. Thaum hluav taws tshwm sim, nws yuav tsis tsuas yog ua rau poob ntawm lub chaw nres tsheb fais fab, tab sis qhov tseem ceeb tshaj, nws yuav ua rau muaj kev nyab xeeb ntawm cov neeg siv, thiab nws tseem yuav cuam tshuam kev tua hluav taws.

Nyob rau hauv no hais txog, lub tebchaws United States National Electrical Code yuav tsum: qhov kev ncua deb mus rau lub photovoltaic matrix 305mm raws li tus ciam teb thaj tsam, sab nraum lub ciam teb thaj tsam, nyob rau hauv 30 vib nas this tom qab lub trigger khoom pib, lub voltage yog txo mus rau 30V hauv qab no; Nyob rau hauv cov ciam teb thaj tsam, nws yuav tsum muaj "photovoltaic txaus ntshai tswj system", los yog txo qhov voltage kom tsawg tshaj li 80V nyob rau hauv 30S tom qab lub trigger khoom pib.

Canadian Electrical Installation Code yuav tsum muaj qhov cuam tshuam ntawm qhov cuam tshuam los yog qhov sib npaug ntawm cov khoom siv thaum lub DC sab voltage ntawm PV system ntau dua 80V. Thaum lub tshuab hluav taws xob photovoltaic raug teeb tsa hauv lub tsev lossis hauv lub tsev, lub tshuab kaw nrawm yuav tsum tau teeb tsa.

Tsis tas li ntawd, lub teb chaws Yelemees, Australia, Thaib teb tau tsim cov kev cai tseem ceeb ntawm kev faib hluav taws xob photovoltaic kev nyab xeeb.

Txoj cai hauv tsev: Lub Kaum Ib Hlis 26, 2021, Lub Chaw Tswj Xyuas Hluav Taws Xob Hauv Tebchaws tau tshaj tawm tsab ntawv ceeb toom ntawm Kev Txhim Kho Kev Nyab Xeeb Kev Ua Haujlwm ntawm Kev Tshaj Tawm Cov Hluav Taws Xob Hluav Taws Xob (Draft for Comment), uas "kev tswj xyuas qhov project" kom meej meej yuav tsum muaj kev teeb tsa ntawm arc txhaum Circuit Court breakers lossis kev siv cov khoom siv nrog cov haujlwm sib xws kom ua tiav qhov ntse arc nrhiav pom thiab ua haujlwm nrawm; Lub photovoltaic module yuav tsum tau nruab nrog kev ruaj ntseg tig-tawm kev tiv thaiv muaj nuj nqi kom paub meej tias lub inverter raug kaw. Tom qab AC lub zog tsis ua haujlwm, DC qhov hluav taws xob sab nraud ntawm qhov system subarray qis dua qhov kev nyab xeeb voltage.

Thaum Lub Kaum Ib Hlis 9, Lub Tsev Haujlwm Saib Xyuas Kev Txhim Kho thiab Kev Hloov Kho ntawm Dongguan, Guangdong Xeev tau tshaj tawm "Kev Tswj Xyuas Kev Ntsuas rau Kev Tsim Kho ntawm Kev Tsim Kho Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob ntawm Dongguan Kev Txhim Kho thiab Txhim Kho Lub Chaw Haujlwm". Piv nrog rau cov qauv rau cov lus pom nyob rau xyoo 2021, nws tau hloov pauv loj heev, xav kom cov phiaj xwm photovoltaic yuav tsum muaj peev xwm kaw sai sai thiab tswj cov qauv kom muaj kev nyab xeeb ntawm cov neeg ua haujlwm thiab cov khoom.

Tsuas yog ib lub lis piam tom qab ntawd, thaum lub Kaum Ib Hlis 17, Haining City Development thiab Reform Bureau ntawm Zhejiang Xeev tau tshaj tawm "Kev Tswj Xyuas Kev Siv Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob hauv Haining City" (duab rau cov lus pom), uas kuj tau teev tseg tias cov phiaj xwm photovoltaic yuav tsum. muaj lub module theem ceev kaw thiab tswj muaj peev xwm.

Raws li kev lag luam sab hauv, txoj hauv kev kom ua tiav qhov nrawm nrawm ntawm cov khoom siv hluav taws xob suav nrog kev siv hluav taws xob optimizer, micro inverter, kaw, thiab lwm yam. Nrog rau qhov sib ntxiv ntawm ntau lub nroog, kev faib hluav taws xob photovoltaic system kev ruaj ntseg teeb tsa yuav nruj dua.

Thaum kawg ntawm lub Cuaj Hlis 2022, qhov sib sau ua ke nruab peev xwm ntawm kev faib PV hauv Suav teb tau mus txog 142.4GW, suav txog 40 feem pua ​​​​ntawm tag nrho cov peev txheej ntawm PV, uas yuav siv sij hawm sai sai "ib nrab ntawm tag nrho cov peev txheej". Lub caij no, cov kev cai tswj hwm yuav dhau los ua nruj dua, thiab kev hloov pauv kev lag luam tseem nce ntxiv mus tom ntej.