Peb txoj kev teeb tsa ntawm lub hnub ci zog + lub zog cia

Thaum lub sij hawm "hnub ci + cia" feem ntau raug xa mus rau hauv lub voj voog lub zog, me ntsis kev saib xyuas tau them rau hom hnub ci + khaws cia yog xa mus. Feem ntau hais lus, Nws tuaj yeem teeb tsa lub hnub ci + lub zog cia hauv peb txoj hauv kev:

• Standalone AC-coupled hnub ci + lub zog cia: Lub zog cia qhov chaw nyob ntawm qhov chaw sib cais los ntawm lub hnub ci fais fab. Hom kev teeb tsa no feem ntau ua haujlwm rau thaj chaw muaj peev xwm txwv.

• Co-chaw nyob AC-coupled hnub ci + lub kaw lus cia: Lub hnub ci hluav taws xob tsim hluav taws xob thiab lub zog khaws cia yog sib koom ua ke thiab sib koom ib qho kev sib txuas lus nrog kab sib chaws lossis muaj ob lub ntsiab lus sib cuam tshuam. Txawm li cas los xij, lub hnub ci hluav taws xob tsim hluav taws xob thiab lub zog cia qhov system txuas nrog lub inverter cais. Lub zog cia qhov system reservoir nyob ib sab ntawm lub hnub ci hluav taws xob tsim hluav taws xob. Lawv tuaj yeem xa hluav taws xob ua ke lossis ywj siab.

• Co-chaw nyob DC-coupled hnub ci + lub zog cia qhov system: Lub hnub ci hluav taws xob tsim hluav taws xob thiab lub zog khaws cia yog sib koom ua ke. Thiab sib qhia tib yam kev sib txuas. Tsis tas li ntawd, lawv txuas nrog tib lub tsheb npav DC thiab siv tib lub inverter. Lawv tuaj yeem siv los ua ib qho chaw.

Qhov zoo ntawm deploying zog cia tshuab nws tus kheej.

Lub hnub ci hluav taws xob tsim hluav taws xob thiab lub zog cia tshuab tsis tas yuav tsum tau sib koom ua ke kom ua tiav cov txiaj ntsig sib luag. Txawm hais tias lawv nyob qhov twg ntawm daim phiaj, cov chaw khaws cia lub zog ib leeg tuaj yeem muab cov kev pabcuam hauv kab sib chaws thiab hloov hluav taws xob ntau dhau los ntawm kev rov ua dua tshiab mus rau yav tsaus ntuj lub sijhawm hluav taws xob. Yog tias cov khoom siv hluav taws xob hnub ci nyob deb ntawm qhov chaw thauj khoom, qhov kev pom zoo ntawm lub cev yuav tsum tau siv lub zog ywj pheej cia nyob ze ntawm qhov chaw thauj khoom. Piv txwv li, Fluence tau siv 4-teev lub roj teeb cia nrog lub peev xwm ntawm 30MW nyob ze San Diego kom muaj kev ntseeg siab hauv zos thiab nce kev siv lub zog tauj dua tshiab. Cov khoom siv hluav taws xob thiab cov neeg tsim khoom yuav tsum tsom mus rau kev siv cov khoom siv hluav taws xob uas yuav los yog tsis tuaj yeem koom nrog lub hnub ci zog, tsuav yog lawv muaj txiaj ntsig zoo tshaj plaws.

Qhov zoo ntawm hnub ci + lub zog cia sib koom ua ke xa tawm

Hauv ntau qhov xwm txheej, hnub ci + chaw cia khoom sib koom ua ke muaj qhov zoo heev. Nrog rau qhov chaw sib koom ua ke, hnub ci + khaws cia tuaj yeem sib npaug ntawm cov nqi tsim khoom, suav nrog av, kev ua haujlwm, kev tswj xyuas qhov project, tso cai, kev sib tshuam, kev ua haujlwm, thiab kev saib xyuas. Hauv Teb Chaws Asmeskas, cov tswv lag luam tseem tuaj yeem thov cov nqi se peev rau feem ntau cov nqi khaws cia yog tias lawv muaj lub luag haujlwm rau hnub ci.

Lub hnub ci + chaw cia khoom sib koom ua ke tuaj yeem yog AC ua ke, qhov twg lub zog cia qhov system thiab lub hnub ci hluav taws xob tsim hluav taws xob yog sib koom ua ke tab sis tsis sib koom inverters. Nws tseem tuaj yeem siv DC coupling system. Lub hnub ci hluav taws xob tsim hluav taws xob thiab lub zog cia khoom yog ua ke ntawm DC sab ntawm kev sib koom bidirectional inverter, thiab qhov project tus nqi tuaj yeem sib koom thiab sib npaug. Raws li kev tshawb fawb los ntawm NREL, los ntawm 2020, Nws yuav txo cov nqi ntsuas qhov system los ntawm 30% thiab 40% rau kev sib koom ua ke AC-coupled thiab DC-coupled hnub ci + cia, feem.

Kev sib piv ntawm DC-coupled lossis AC-coupled deployments

Thaum ntsuas DC-coupled hnub ci + khaws cia, qee qhov tseem ceeb yog xav txog. Qhov zoo ntawm DC txuas hnub ci + lub zog cia yog:

• Txo cov nqi khoom siv los ntawm kev txo tus nqi ntawm kev xa tawm inverters, nruab nrab voltage switchgear, thiab lwm yam chaw.

• Tso cai rau lub hnub ci zog los ntes lub hnub ci zog feem ntau poob lossis txo qis thaum lub zog inverter load ntau dua 1, tsim cov nyiaj tau los ntxiv.

• Nws tuaj yeem koom ua ke hnub ci + lub zog cia hauv ib daim ntawv cog lus yuav khoom hluav taws xob (PPA).

Qhov tsis zoo ntawm DC txuas hnub ci + lub zog cia yog:

Piv rau AC-coupled hnub ci-plus-storage systems, DC-coupled solar-plus-storage systems muaj kev ua haujlwm tsawg dua vim tias lawv raug txwv los ntawm lub peev xwm inverter thaum lub peev xwm sib cuam tshuam loj heev. Piv txwv li, yog tias tus tsim lub hnub ci xav tau kev xav tau siab thaum lub sijhawm lub hnub ci siab tshaj plaws, nws yuav tsis tuaj yeem them cov roj teeb ib txhij. Thaum qhov no yog qhov muaj peev xwm poob qis, nws tsis yog qhov teeb meem loj hauv ntau lub khw.

Kev lag luam sab hauv ntseeg tias DC txuas hnub ci + lub zog cia qhov system yog qhov kev teeb tsa zoo tshaj plaws. Nws tuaj yeem muab lub hnub ci zog ruaj khov rau lub sijhawm ntev, xws li 4-6 teev, txhawm rau txhawm rau txiav lub hnub ci zog. Vim yog sib koom inverter, Cov cuab yeej txo cov nqi hluav taws xob. DC-coupled hnub ci-ntxiv-nco-kev xa tawm yuav tsum tau nce ntxiv nyob rau ob peb xyoos tom ntej no vim tias ntau tus neeg ua haujlwm hauv kab sib ntsib ntsib qhov nkhaus nkhaus ntxiv.